PROJECT MANUAL - gettysburg.k12.pa.us

1

PROJECT MANUAL

FOR

ROOF REPLACEMENT

At

Eisenhower Center 120 East Broadway

Gettysburg, PA

Prepared For:

Gettysburg Area School District

900 Biglerville Road Gettysburg, PA 17325

Attn: Mr. Wayne Crosby

Prepared By:

Violette Engineering. PO Box 357

Dillsburg, PA 17019

Violette Engineering Project 18.006

February 12, 2019

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TABLE OF CONTENTS

BIDDING DOCUMENTS

1.0 INVITATION TO BID .............................................................................................. Page 3 2.0 INSTRUCTION TO BIDDERS ................................................................................. Page 3 3.0 BID FORM .................................................................................................................. Page 5 4.0 SUBCONTRACTOR LISTING ................................................................................. Page 9

SPECIFICATIONS FOR ROOF REPLACEMENT

5.0 PROJECT DESCRIPTION /SUMMARY OF WORK ............................................ Page 11

6.0 PROJECT DIRECTORY .......................................................................................... Page 12 7.0 GENERAL ADMINISTRATIVE PROVISIONS ................................................... Page 12 8.0 PAYMENT ................................................................................................................ Page 14 9.0 CONTRACTOR CONDUCT ................................................................................... Page 15 10.0 WARRANTY .......................................................................................................... Page 15 11.0 INSURANCE REQUIREMENTS ......................................................................... Page 16 12.0 BONDS .................................................................................................................... Page 17 13.0 REFERENCES ....................................................................................................... Page 17 14.0 SAFETY REQUIREMENTS ................................................................................. Page 18 15.0 USE OF BUILDING UTILITIES ........................................................................... Page 20 16.0 SECURITY ............................................................................................................. Page 20 17.0 BUILDING PROTECTION ................................................................................... Page 20 18.0 WASTE DISPOSAL ............................................................................................... Page 21 19.0 EXISTING CONDITIONS .................................................................................... Page 21 20.0 SUBMITTALS ......................................................................................................... Page 22 21.0 FIELD QUALITY CONTROL ............................................................................... Page 23 22.0 MANUFACTURER’S INSTRUCTIONS .............................................................. Page 24

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23.0 TRANSPORTATION AND HANDLING ............................................................. Page 24 24.0 MATERIALS REQUIREMENTS .......................................................................... Page 25 25.0 REPAIR PROCEDURES ....................................................................................... Page 30 DRAWINGS DRAWING CS – COVER SHEET DRAWING D1 – ROOF PLAN DRAWING D2 – ROOF DETAILS DRAWING D3 – ROOF DETAILS

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1.0 INVITATION TO BID

Sealed Bids for furnishing all labor, materials, equipment and services required for Roof Replacement at Eisenhower Center located in Gettysburg, PA will be received no later than 2:00 P.M. April 18, 2019. Bids shall be completed in accordance with the Instructions to Bidders. Bids shall be addressed to:

Gettysburg Area School District Business Office 900 Biglerville Road Gettysburg, PA 17325 With a copy to: Michael S. Violette, P.E., RRC Violette Engineering PO Box 357, Dillsburg, PA 17019 Phone: 717-461-5651 Email: [email protected].

2.0 INSTRUCTION TO BIDDERS A Pre-Bid Conference will be held on April 2, 2019 at 11:00 am , at the project site and will be attended by:

• Contractor • Owner’s representative • Engineer

The Work is to commence on or about June 6, 2019 following the Bid evaluation process and Notice of Award. It is the Owners' intention to enter into an agreement for roof replacement using AIA, A107, Standard Form of Agreement between Owner and Contractor for Construction Projects of Limited Scope where the basis of payment is a stipulated sum. Payment terms will be 30 days, based on Contractor’s submitted and approved Schedule of Values, and a 10 percent retainage will be required. Terms used in these Instructions to Bidders which are defined in the Standard General Conditions of the Construction Contract have the meaning assigned to them in the General Conditions. The Bidder is required to submit the following information with the Bid. Joint Bids will not be accepted. The Contractor is to provide a 2 year warranty for materials and workmanship for the entire project. A release of liens shall accompany each application for payment. On the Bid Form provided:

a. Provide full business address and telephone number. b. Provide lump sum price for all work identified in these documents. c. Provide unit prices for the items listed on the Bid Form.

mailto:[email protected]

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Provide one copy of Bid in an opaque sealed envelope marked with the project name and name and address of Bidder to Gettysburg Area School District Business Office. Bids must be received at the specified time and date or the bid may be disallowed at the Owners discretion. It is the responsibility of the Bidder to examine the contract documents, visit the site, consider federal, state and local laws and regulations and notify Engineer of all conflicts, errors or discrepancies in the Contract Documents. Please note the Contractor shall be responsible for the field measurements of actual quantities to be replaced. Base bid price shall include cost of all work associated with the items outlined in this Project Manual. Quantities not provided but necessary for submittal of Base Bid shall be field measured by the Contractor. The Owner is under no obligation to accept lowest or any other Bid and expressly reserves the right to accept or reject any and/or all Bids, and to waive any informalities or irregularities in any Bid. Addenda will be issued to Prime Contractors only. Prime Contractors shall be responsible for distributing addenda information to Subcontractors and materials suppliers. Extra costs will not be allowed for failure of Contractors and Subcontractors to incorporate addenda information. The basis of the Bid shall be a lump sum price for the entire Work to be completed in accordance with the Bid instructions and the contract requirements given in the specifications. Unit prices, as indicated on the Bid Form, are also required for quantities that are variable in nature and will be used to adjust the value of the Contract as necessary. Bidders shall be advised that payment terms will be 30 days and that there will be a 10 percent retainage withheld from each Payment Request, to be paid upon satisfactory completion of the project. Failure to submit as-built drawings and schedule of values will delay the processing of the Payment Request. A completed release of lien affidavit shall accompany each application for payment.

Bidder shall provide evidence of qualification to perform work in the State of Pennsylvania. Upon request by the Owner’s Representative(s) (after Bid opening), Bidders shall fully complete, sign, and have notarized Contractor’s Qualification Statement AIA Document A305. Failure to submit a fully complete AIA Document A305, will render the Bid as not responsive and will be cause for rejecting the Bid, unless the Owner’s Representative(s) waives this item as an irregularity or informality or requires the bidder provide, in writing, further information, postmarked or hand delivered within five working days of request. As an attachment to the Bid Form, provide: A. Evidence of qualification to perform work in the Commonwealth of Pennsylvania. B. A list of subcontractors to be used and their scope of work (Form provided). C. A schedule of values for the work to be accomplished.

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3.0 BID FORM Bidder shall complete the work described in these documents for the prices indicated below.

PART I

All work as described in the Scope of Work for Roof Replacement at Eisenhower Center located in Gettysburg, PA, lump sum: (Use words) $ (Use figures)

PART II Proposed Start Date: _________________________________ Proposed Completion Date: _______________________________

PART III

We hereby acknowledge receipt of: Addendum _________, dated __________________. Addendum _________, dated __________________.

Contractor:

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PART IV – LUMP SUM BASE BID TABLE

ITEM NO

DESCRIPTION QUANTITY UNIT COST TOTAL COST

1 Contractors access to the work areas, mobilization & General Conditions

Lump Sum Lump Sum $

2

Roof Section A: Remove existing built-up roof systems, including insulation and flashings and install a new90 mil EPDM single ply roof system fully adhered insulation and a vapor retarder,

13,600 SF Contractor Verify

$ /SF

$

3

Roof Section B: Remove existing built-up roof systems, including insulation and flashings and install a new 90 mil EPDM single ply roof system fully adhered insulation and a vapor retarder,


$ /SF

$

4

Install new prefabricated curbs to replace existing wood sleepers supporting ducts and equipment at the same locations.

13

5

Roof Section C: Remove existing built-up roof systems, including insulation and flashings and install a new 90 mil EPDM single ply roof system fully adhered insulation and a vapor retarder,


$ /LF

$

6

Roof Section D: Remove existing built-up roof systems, including insulation and flashings and install a new 90 mil EPDM single ply roof system fully adhered insulation and a vapor retarder,

470 SF Contractor Verify

$ /SF

$

7

Roof Section E: Remove existing built-up roof systems, including insulation and flashings and install a new 90 mil EPDM single ply roof system fully adhered insulation and a vapor retarder,

350 SF Contractor Verify

$ /SF

$

Remove existing EPDM membrane on elevator roof located on Roof Section B

Lump Sum Lump Sum $

Remove existing metal wall panel on elevator walls to perform roof replacement and install new metal panels

Lump Sum

Lump Sum

$

8 Install all new drain bowl assembly to replace existing at same locations

14 $ /EA $

9 Remove abandoned equipment curbs and patch deck to receive new roof

20

$ /EA

$

Remove existing skylights from Roof Section D and patch deck to receive new roof

2

$ /EA

$

10 Install new walkway pads across all 5 roof sections

750 LF

$ /LF $

11 Miscellaneous Work Allowance for Owner approved additional work items

Lump Sum Lump Sum $10,000.00

12 Remove and replace existing sealant & backer rod in masonry wall control joints

50 LF

$ /LF

$

13

Furnish and install 3 new wall mounted galvanized steel access ladders where indicated

Lump Sum

Lump Sum

$

14 Payment and performance bonds (OWNERS OPTION)

Lump Sum Lump Sum $

TOTAL BASE BID

$

Contractor:

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PART V- ALTERNATES & UNIT PRICES

Unit costs for labor and materials to be added to, or subtracted from the Scope of Work, for quantities or items that are different than shown in the project plans and specifications. A. Remove roof hatch on Roof Section B and repair deck to receive new roof

system $_________/EA

B. Repair deteriorated deck to receive new roof system $_________/SF

C. Option for 25 year roof warranty: $_________

PART VI - DISCOVERABLE ERRORS Contractor shall fully execute the Work described in the Contract Documents and reasonably inferable by the Contractor as necessary to produce the results intended by the Contract Documents, except to the extent specifically indicated in the Contract Documents to be the responsibility of others. The Work includes, but is not limited to, all labor, materials and equipment as set forth in the Contract Documents, including but not limited to delivery, storage, handling and installation of all material and equipment as well as related and incidental construction necessary to result in a complete and functioning Project in accordance with the Contract and all applicable Legal Requirements, notwithstanding any errors, omissions, inconsistencies or lack of coordination in the Contract Documents that an experienced contractor that has constructed many similar projects and reviewed the Drawings and Specifications on the Project could reasonably have recognize during bidding and negotiation of the Contract Documents to construct the Project (the “Discoverable Errors”). Contractor agrees that if there are any such Discoverable Errors in the Contract Documents, the Contractor shall promptly report them to Owner; however, the cost to perform any additional Work necessary to complete the Project or any increase in the cost of Work resulting from any Discoverable Errors shall be borne by Contractor and shall not form a basis for an increase in the Contract Sum or the deadline for completion of the Work. The Engineer, as administrator of the Contract, will determine any items that might be considered as discoverable errors.

Contractor:

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PART VII

Communications concerning this Bid shall be addressed to bidder at the following address: SUBMITTED on , 20 BY (Corporation Name) (State of Corporation) BY (Title) (Signature) (Corporate Seal) Attest (Secretary)

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4.0 SUBCONTRACTOR LISTING

These subcontractors shall be licensed to perform in the State of Pennsylvania: Portion of the Work: Subcontractor name and address:

USE ADDITIONAL SHEETS IF REQUIRED.

PROVIDE SIGNATURE IDENTICAL TO THAT SHOWN ON THE BID FORM

Bidder:

By:

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SPECIFICATIONS

FOR

ROOF REPLACEMENT

At

Eisenhower Center 120 East Broadway

Gettysburg, PA

Prepared For:

Gettysburg Area School District

900 Biglerville Road Gettysburg, PA 17325

Attn: Mr. Wayne Crosby

Prepared By:

Violette Engineering. PO Box 357

Dillsburg, PA 17019

Violette Engineering Project 18.006

February 12, 2019

Gettysburg Area School District – Roof Replacement Violette Engineering Project 18.006 Eisenhower Center June 29, 2018

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5.0 PROJECT DESCRIPTION/SUMMARY OF WORK

The subject project consists of roof replacement for the Eisenhower Center encompassing 6 roof sections on multiple levels. The school roof totals approximately 30,000 square feet in plan and was covered with an existing aggregate surfaced built-up roof system on a concrete deck. The roof area on the school is comprised of gypsum decking, with an original 4 ply BUR with aggregate mopped directly to the deck and a second roof of 1.5” polyisocyanurate insulation , ½” wood fiber board and a 4 ply BUR with aggregate system. The deck consisted of a 2 inch poured in place gypsum on ½ gypsum board supported by bulb tees and steel roof joists. The new roof system will consist of a 90 mil adhered EPDM membrane with 60 mil flashings over an R-25 rigid insulation and a vapor barrier on the deck. The following summarizes the roof areas included and the scope of work.

Roof Section Area (SF) A 13,600 B 14,700 C 3,200 D 1,660 E 470 F 350

.

A. BASE BID WORK ITEMS All work shall be performed at locations indicated on the drawings which consist of the following:

1. Remove existing built-up membranes from all roof sections down to gypsum deck, 2. Remove and replace all existing drains with new drain assemblies at the same location. 3. Install a mechanically attached base sheet and self-adhering vapor retarder over the

existing poured gypsum deck. 4. Install Eliminailer-T at the perimeter edge of each roof section on the existing wood

blocking. 5. Install pre-fabricated 4 ft.by 4 ft. tapered drain sump panels at each drain. 6. Install new 90 mil fully adhered EPDM membrane system including R-25 rigid insulation

and crickets between drains. 7. Install all new metal flashings, edge metal and roof edge fascia at the perimeter of all

roofs. 8. Remove the existing wall panels from the elevator roof to allow replacement of Section

B BUR and the elevator EPDM roof. 9. Install new metal wall panels to the 4 rising walls of the elevator roof. 10. Install EPDM overlay in the gutters at the 2 entrance canopies. 11. Provide new supports for equipment and ducts where indicated on the drawings. 12. Remove abandoned curbs, equipment supports, skylights and roof hatch where indicated

on the drawings and patch deck to receive new roofing system. 13. Remove existing gutters and downspouts and install new gutters and downspouts where

indicated. 14. Remove and replace failed sealant in masonry wall control joints. 15. Fabricate and install new galvanized steel ladders for access from adjacent roofs at

different levels.


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B. UNIT PRICE WORK ITEMS Unit costs for labor and materials to be added to the Scope of Work. All work shall be performed at locations indicated on the drawings if selected by the Owner, which consist of the following:

1. The following unit prices shall apply to the work:

a. Replace damaged and deteriorated gypsum deck $___________/SF

C. AGENCY APPROVALS. The proposed roof system shall conform to the following requirements. No other testing agency approvals will be accepted.

1. Underwriters Laboratories (UL) Class A acceptance for fire of the proposed roofing

system. 2. Factory Mutual (FM) Standards. The roof system shall comply with the following FM

standards; a. FM Standard 4450/4470 – For Testing Roofs/Components b. FM Loss Prevention Sheets

• 1-28: Wind Loads • 1-29; Above Deck Roof Components and Steel Decks • 1-49 Perimeter Attachment

3. Provide a roofing system that is identical to systems that have been successfully tested by

a qualified testing and inspecting agency to resist wind uplift pressures calculated according to ASCE -07, including a factor of safety of 2.0. Factored wind uplift pressures for this area shall be based upon a 3-second gust of highest winds equal to 90 miles per hour are as follows:

a. Field: 60 PSF b. Perimeter:60 PSF c. Corner: 90 PSF


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6.0 PROJECT DIRECTORY

Owner: Gettysburg Area School District 900 Biglerville Road Gettysburg, PA 17325

Mr. Wayne Crosby; Phone: 717-334-6254 X1213 Email: [email protected].

Engineer: Violette Engineering PO Box 357 Dillsburg, PA 17019 Michael S. Violette, P.E.; 703-626-5570 Email: [email protected] 7.0 GENERAL ADMINISTRATIVE PROVISIONS

The following provisions shall apply to this project:

A. Contractor shall determine appropriate methods to deliver materials to the roof

surfaces and obtain necessary permitting.

B. Bids shall remain valid for ninety days after the date of the Bid opening, with date of substantial completion adjusted according to any delay in award.

C. An English speaking superintendent shall be on-site at all times during the course of the

work.

D. Various standards and specifications are incorporated in the technical sections of these specifications by reference. In all such instances, the reference shall mean the latest edition, including amendment or revision in effect as of the date of this specification, unless a specific issue is identified otherwise. In the event that referenced specifications or standards contain general requirements in conflict with the Contract Documents, the more stringent requirements shall govern.

E. Provide all equipment, materials and manpower to complete the work outlined in this

document.

F. Coordinate Work with others, such that no delay with this project or the work of others occurs.

G. Construct Work in stages to accommodate Owner's use of premises during construction.

H. Contractor shall limit use of premises for Work, for storage, and for access to allow for Owner occupancy. Consult with Owner prior to stockpiling bulk materials, to determine location of storage.

I. Obtain and pay for use of additional storage or work areas needed for operations under this

Contract.

mailto:[email protected]


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J. The on-site Foreman shall inspect the site daily and remove all trash and debris.

K. The Contractor (after award of Contract) shall meet with the Engineer and Owner for the

purpose of finalizing the project schedule. Submit work schedule to Owner prior to start of Work. Work schedule shall include hours of expected operation as well as daily activity. Obtain approval from Owner prior to initiating or altering Work schedule. Normal business work hours are Monday through Friday 7:30 AM to 5 PM. No equipment delivery shall be performed between the hours of 9 PM and 5 AM. Noise generating activity cannot commence until local jurisdiction dictates. Holiday work may be performed with written permission from the Owner.

L. The Contractor shall obtain and pay for any and all permits required, to perform the work, by

the local governing authority having jurisdiction. The Contractor shall provide copies of all permits required to Owner prior to any on-site work.

M. Assume full responsibility for protection and safekeeping of products stored on site under this

Contract.

N. Upon completion of the project, or as directed by the Owner, the Contractor shall remove all temporary items, material, and equipment from the site, same to become his property, and leave the premises.

O. Protect materials from weather. Provide temporary weather tight coverings or enclosures for

temporary exterior openings.

P. Any Work, existing property, and/or contents damaged by failure to provide protection required above shall be removed and replaced with new Work at the Contractor's expense.

Q. The Owner reserves the right to perform Work with its own Contractors or forces concurrently

with the general Contractor, during the construction and finishing of the project.

R. Final acceptance of installed items will be in accordance with the referenced specifications. Replacement or correction of out of specification work will be at the Contractors’ expense.

S. Disposal of Hazardous Waste Materials shall be in accordance with applicable state and

federal regulations.

T. Any request for an extension of time is to be made in writing to the Owner’s designated Representative with a copy to the Engineer immediately upon occurrence of conditions which, in the opinion of the Contractor, warrant such an extension with reasons clearly stated and detailed proof given for all delays beyond the Contractor’s control, these to be made in writing to the Engineer. No time extension will be allowed except by formal approval of the Owner’s designated Representative.

U. Once the Engineer has awarded substantial completion, a reasonable time will be allowed,

to the Contractor by the Engineer and Owner’s designated Representative, for the Contractor to complete any remaining "punch list" items.


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8.0 PAYMENT

A. Payment by the Owner for any materials, equipment, or labor incorporated into the Work shall not be deemed to be an acceptance by the Owner. The risk of loss of such materials, equipment, or cost of labor spent to install such, shall remain with the Contractor, and the Contractor shall be fully responsible for such materials, equipment, or labor to the same extent as if the Owner had not paid or accepted real property, until after final inspection and approval by Owner. Stolen, damaged, vandalized, missing, or weather damaged equipment or material shall be considered the property of the Contractor until final acceptance by Owner.

B. Submit each payment application on form AIA Form G702 with a schedule of values.

Releases of liens shall be submitted with each application for payment. A 10% retainage will be withheld from each progress payment.

C. All change orders during the course of the work shall be submitted in writing using form AIA

Form G701.

9.0 CONTRACTOR CONDUCT

A. All Contractor personnel who will be on site shall complete and submit documentation for the following required clearances to work at Pennsylvania schools.

1. PA State Police background check 2. PA child abuse history clearance 3. FBI background check

B. Contractor or his Subcontractors shall:

1. Maintain complete set of specifications and copies of all change orders and addendum on the site at all times.

2. Have Foreman and Superintendents that are fully conversant with these specifications. 3. Not use profanity on the property 4. Not use language, gestures, whistles or any other means that may be construed as

harassment to building occupants or others. 5. Not play a radio loud enough to be heard on the ground or in the building 6. Not fraternize with building occupants at any time on site

10.0 WARRANTY

A. Twenty Year NDL Roof System Warranty: Upon successful completion of the project, and

after all post installation procedures have been completed, furnish the Owner with the roof system Manufacturer's 20 year labor and materials roof system guarantee. The roof system guarantee shall include both the roofing and flashing membranes, insulation, sheet metal flashing, edge metal, metal coping and all fasteners supplied by the manufacturer. All repair or replacement costs covered under the guarantee shall be borne by the roofing membrane manufacturer. The guarantee shall be a term type, without deductibles or limitations on coverage amount, and be issued at no additional cost to the Owner.

B. Contractor’s 2-Year workmanship and material warranty: Contractor shall guarantee

workmanship and materials for a period of 2 years. The workmanship and materials guarantee


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shall include both the roofing and flashing membranes and all metal. All repair or replacement costs covered under the warranty shall be borne by the roofing Contractor.

C. The Contractor shall certify upon completion of the job that the Work outlined in these

Specifications has been fully completed, and the materials have been applied in strict accordance with these Specifications or the Manufacturers’ recommendations.

11.0 INSURANCE REQUIREMENTS

A Contractor shall obtain, pay the premiums for and keep in force during the term of this agreement insurance written by companies licensed and authorized to conduct business in the local jurisdiction and acceptable to the Owner in dollar amounts hereinafter specified or as required by law, whichever is greater.

B Insurance for protection from claims under workers’ compensation acts and other employee

benefit acts which are applicable. This insurance shall be written for not less than limits of liability required by law.

C Commercial General Liability including Contractual Liability, Independent Contractors

Protective Liability, Products Liability and Completed Operations:

1 Bodily Injury and Property Damage: at least $1,000,000 each occurrence and $2,000,000 annual aggregate.

2 “XCU” exclusions relating to damages to property caused by explosion, collapse,

shoring, grading and underground utilities shall be removed when applicable.

D Automobile Liability Insurance (Owned, Non-Owned and Hired Car):

1 Bodily Injury and Property Damage: at least $1,000,000 each occurrence and $1,000,000 annual aggregate.

E Umbrella Liability Insurance:

1 Bodily Injury and Property Damage: at least $5,000,000 each occurrence and $5,000,000

annual aggregate.

2 Coverage shall extend over the underlying commercial general liability, automobile liability and employer’s liability policies.

F Contractor’s insurance shall name the Owner, Managing Agent and Engineer as additional

insureds. Contractor’s insurance shall be considered primary in all cases. G Contractor shall provide the Owner with a certificate of insurance confirming the insurance

required herein before the commencement date of this agreement. Such certificate shall include a provision requiring the insurer to provide thirty (30) days written notice prior to cancellation, non-renewal or reduction in coverage or limits for any reason. The Owner may at any time inspect and copy any and all insurance policies required by this agreement.


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12.0 BONDS

Performance and Payment bonds will be required. The cost for these bonds shall be included in the base Bid. Upon receiving Notice of Award from the Owner the Bidder/Contractor shall, within ten days (and prior to executing a satisfactory contract), furnish to the Owner the following bonds: A. A performance bond in the sum of the contract amount conditioned upon the faithful

performance of the contract in strict conformity with the plans, specifications and conditions of the contract. Reference is made to AIA Form and Document A312.

B. A labor and materials payment bond in the sum of the contract amount. Such bond shall be for the protection of claimants who have and fulfill contracts to supply labor or materials to the prime contractor to whom the contract was awarded, or to any subcontractors, in the prosecution of the Work provided for in such contract, and shall be conditioned upon the prompt payment for all such material furnished or labor supplied or performed in the prosecution of the Work. “Labor or materials” shall include public utility services and reasonable rentals of equipment, but only for periods when the equipment rented is actually used at the site. Reference is made to AIA Form and Document A312.

C. All bonds shall be executed by one or more surety companies selected by the Contractor which are legally authorized to do business in the local jurisdiction. Contractor’s bonding company/surety shall maintain a minimum secure rating of A or better as determined by the Key Rating Guide of AM Best Company, Oldwick, NJ.

D. Acceptance of bonds furnished shall be subject to the review and approval of Owner’s legal counsel.

13.0 REFERENCES

A. References in these specifications to standards, test methods, codes etc., are implied to mean the latest edition of each such standard adopted. The following is an abbreviated list of associations, institutions, and societies that may be used as references throughout these specifications.

ANSI American National Standards Institute Washington, DC (212) 642-4900 ASTM American Society for Testing and Materials Philadelphia, PA (215) 299-5585

ASCE American Society of Civil Engineers Reston, Virginia 20191(800) 548-2723

EPA Environmental Protection Agency Washington, DC (202) 260-2090 FM/FMRC Factory Mutual Research Corporation Norwood, MA (617) 762-4300 NFPA National Fire Protection Agency Quincy, Massachusetts (617) 770-3000


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NRCA National Roofing Contractors Association Rosemont, IL (847) 299-9070 OSHA Occupational Safety and Health Administration Washington, DC (202) 523-1452 SMACNA Sheet Metal and Air Conditioning Contractors National Association Chantilly, VA (703) 803-2980 UL Underwriters Laboratories Northbrook, IL (708) 272-8800

IBC International Building Code Falls Church, VA

14.0 SAFETY REQUIREMENTS

A. All application, material handling, and associated equipment shall conform to and be operated

in conformance with OSHA safety requirements. Familiarize every member of the application crew with all fire and safety regulations recommended by OSHA and other industry or local governmental groups. Contractor shall be solely responsible for site safety.

B. Maintain all exits to the buildings as fire exits and keep clear and accessible at all times during the

course of the contract. If it becomes necessary to block, obstruct or in any way restrict egress from a marked emergency exit, the Owner will be notified at least two business days in advance.

C. Clean-up shall be performed daily as required to prevent accidents to personnel, protect all

Work in place, and to effect completion of the project in an orderly manner. Construction clean-up shall consist of the removal of all mud, oil, grease, sand, gravel, dirt, trash, scrap, debris, and excess materials, from any drive, or walking surface, that may cause the tripping or sliding of persons or equipment. Loose materials or debris being removed from the site by the Contractor's vehicles, which becomes deposited on the roadways or other outside access areas, shall be cleaned up and removed immediately.

D. Locate utilities which might be affected by the Work. Contractor is solely responsible for

maintaining all utilities in operable condition, for repairing any damaged utilities, and for the safety of the workers and public.

E. Job site safety shall be the sole responsibility of the Contractor. Contractor procedures and

practices shall comply with applicable federal, state and local safety requirements. F. Provide all demolition and all other power equipment with qualified operating personnel for

the safe and efficient use of equipment. Provide equipment with all safety devices as required by OSHA, local codes and ordinances, state codes and the equipment manufacturers.

G. Comply with federal, state, local and Owner fire and safety requirements. H. Advise Owner whenever work is expected to be hazardous to Owner, employees, and/or

operators. I. The use of lead containing or asbestos containing materials is prohibited on the project.


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J. Contractor is required to comply with state laws regarding notification. K. The Contractor shall fully comply with OSHA’s Fall Protection Standards. The Contractor

shall assume all financial responsibilities for compliance with the standard and any project delays as a result of non-compliance. The Contractor shall submit verification (e.g., Certificate of Training) that employees have been trained on OSHA’s Fall Protection standard. Provide the name of the Contractor’s on-site “competent person” who will be responsible for recognizing and warning his/her employees of fall hazards. Provide a list of the OSHA approved fall protection systems that the Contractor will utilize on the project.

L. Comply with OSHA’s Overhead Protection Standard when lifting materials over pedestrian

walkways or exits. M. All temporary ladders or means of access to the roof shall be removed and secured at the end

of each workday.

N. Contractor shall coordinate safety plan with on-site personnel.

O. Fire Extinguishers: Provide sizes, numbers and locations as would be reasonably effective in extinguishing fires during early stages, by trained personnel at project site. Contractor shall utilize TYPE ABC Multi-Purpose Dry Chemical fire extinguishers only on the project. Post warning and quick instruction at each extinguisher location, and instruct all personnel at project site, at time of their first arrival, on proper use of extinguishers and other available facilities at project site.

P. The use and storage of LP gas cylinders on the job site will be in strict compliance with the

most current edition of NFPA 58, Liquefied Petroleum Gases. Owner reserves the right to inspect all operations involving LP gas, at any time and without prior notice, to ensure full compliance with the above referenced code.

15.0 USE OF BUILDING UTILITIES A. Contractor personnel shall not use existing bathroom facilities. Provide enclosed portable self-

contained toilet facilities, secluded from public view. Maintain daily in clean and sanitary condition.

B. Contractor may connect to existing common area power service. Provide temporary electric feeder from existing building electrical service at locations as directed by Owner. Power consumption shall not disrupt Owner's need for continuous service. Owner will pay cost of energy used. Exercise measures to conserve energy.

C. Provide main service disconnect and over-current protection at convenient location.

D. Provide power outlets for construction operations, with branch wiring and distribution boxes. All circuits shall be outfitted with ground fault circuit interrupters. Provide flexible 3-wire power cords suitable for outdoor use, maximum length of 100 feet, minimum 10 gauge.

E. Contractor may connect to existing water source for construction operations. Owner will pay cost of water used. Exercise measures to conserve water.


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16.0 SECURITY

A. The Contractor shall comply with Gettysburg Area School District security measures, which will be provided to the Contractor.

B. The Contractor is responsible for both project site security and facility security where the scope of his work interfaces with the facility operation.

C. The Contractor shall provide security measures necessary to ensure the following:

1. All Contractor and sub-contractor employees are readily identifiable. 2. All security measures must be coordinated with the Owner so as to ensure the security of

both facility occupants and contents.

17.0 BUILDING PROTECTION

A. Contractor shall protect existing roof membranes during all phases of work. Protection shall include insulation and plywood over all areas of the existing roof, adjacent to the work areas and when staging from the roof.

B. Contractor shall perform necessary preventive measures to ensure water does not enter the

building at any time during the duration of the project. Contractor shall be responsible for any damages, loss of business, etc. caused by water entering the building as a result of the exterior facade construction.

C. Examine the site and verify dimensions and conditions necessary for completion of the Work.

Notify Engineer should the conditions vary from those described in this document. D. Perform a thorough survey of property and all affected areas of the building and grounds with

Owner prior to starting the Work in order to document existing damage. Damaged items identified on this list will not be the responsibility of Contractor unless further damaged by Contractor during execution of Project.

E. Consider any damage to property not identified in the pre-construction damage survey as having

resulted from execution of this Contract. Damages as a result of the Contractor’s work shall be corrected by the Contractor at no additional expense to Owner.

F. The Contractor shall at all times prevent trash and dust migration into the building due to

demolition or other construction related activities by means of temporary plastic or solid barriers. Where barriers meet adjacent walls, seal with duct-tape. Maintain protection for areas below the roof level at all times. Cover equipment, etc. with drop clothes.

G. Locate utilities that might be affected by the Work. Contractor is solely responsible for

maintaining all utilities in operable condition, for repairing any damaged utilities, and for the safety of the workers and public.

H. Protect facilities against falling debris by solid sheeting, plastic and/or netting.


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I. Keep hallways and aisles clear of debris at all times during construction.

18.0 WASTE DISPOSAL A. Remove and properly dispose of all roofing, flashing, insulation and miscellaneous metal

items.

B. Upon completion of the project, or as directed by the Owner, the Contractor shall remove all temporary items, material, and equipment from the site, same to become his property, and leave the premises.

C. Disposal of Hazardous Waste Materials shall be in accordance with applicable state and

federal regulations.

19.0 EXISTING CONDITIONS

A. Existing conditions are reflected correctly to the best of Owner's knowledge. Should conditions be encountered which are not as indicated, modification to accommodate new Work shall be made as required at no additional expense to Owner.

B. Examine the site and verify dimensions and conditions necessary for completion of the Work.

Notify Owner and Engineer should the conditions vary from those described in this document. C. It shall be the responsibility of the Contractor to assess the existing conditions prior to work

commencement. D. Any deficiencies or damage noted after work commencement shall be deemed the

responsibility of the Contractor and shall be replaced or repaired at the Contractor's expense. E. Field dimensions: It shall be the responsibility of the Contractor to verify all field dimensions

for installation prior to bid submittal. All work required to make the system complete shall be the sole responsibility of the Contractor after bid submittal.

F. The entire property will be utilized by on-going operations of the Owner. Do not interrupt

Owner operations unless prior written approval is received from the Owner.

20.0 SUBMITTALS All material submittals shall be presented in a submittal log (3 copies) following the notice of award and prior to the Contractor mobilization to the site. After approval, one copy shall be kept by the Owner’s Representative, one by the Engineer, and the third shall remain on site at all times with the MSD sheets. Work shall be stopped immediately for the materials being used if for any reason the Contractor does not have MSD sheets readily available at the site. Work shall not commence until all submittals are submitted by the Contractor and reviewed/approved by the Engineer. Submittals shall include, but not be limited to:

A. Documentation on equipment and supplemental materials to be used in the performance of the Work outlined herein.

B. Manufacturer’s installation instructions (where not already covered).


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C. Warranty information as outlined in Warranty Section. A sample warranty for Contractor’s two-year warranties.

D. Schedule of Values.

E. Performance and Payment Bonds

F. Certificate(s) of insurance, showing required coverage limits, for the Contractor and all Subcontractors and listing the Owner, Managing Agent and Violette Engineering as additional insured. Other additional insureds shall be incorporated upon request by the Owner.

G. Material Safety Data Sheets for all materials being used.

H. Any materials involving color, pattern, and/or texture selection shall have samples/mock-ups field installed for the Owner’s review and final selection (i.e. sealants, metal coping & edge metal, etc.). Initial colors and textures for field samples shall be selected by the Owner from samples submitted to the Owner or installed at the site by the Contractor.

I. Any other item requested by the Engineer for clarification and/or documentation purposes. Note that some shop drawings may be required because of field conditions encountered and it is the Contractor's responsibility to submit those drawings for review and approval by the Engineer.

J. Prior to final payment, the Contractor shall submit the following items, which shall be in a written form acceptable to the Owner and Managing Agent:

1. Applicable release of liens (covering the Owner); 2. Contractor Warranty; 3. Manufacturer’s Warranty 4. As-built drawings 5. The manufacturer's maintenance recommendations/requirements and guidelines, etc.

for all roof materials, sealants and other major components.

21.0 FIELD QUALITY CONTROL

A. Work shall be performed only by personnel experienced in the repair of exterior facades, with minimum of five years’ experience performing the Work as required by these Specifications. The Contractor shall assign a full time on-site foreman or superintendent to oversee quality assurance. The foreman/superintendent shall act as the contact for the Contractor with the Engineer for any quality issues that may arise and is responsible to provide the Engineer with 24 to 48 hours’ notice prior to the need for a site visit. Failure of the foreman/superintendent to properly schedule site visits with the Engineer may require that foreman/superintendent be removed from the site and replaced with personnel who are qualified to carry out the required tasks or that installed work be rejected. The foreman/superintendent shall be capable of fluently speaking English and any languages used by Contractor personnel at the site.

B. Notify the Engineer of the first day of removal of any existing materials. Allow access to the Work area for review of these procedures prior to the placement of any repair/replacement materials.


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C. The Contractor shall coordinate with the Engineer to review Work at reasonable intervals. Work that requires inspection shall not be covered or concealed in any manner prior to review and approval by the Engineer.

D. The Contractor shall recognize that any discrepancies discovered shall be immediately corrected prior to removal of any barricades, protection, or demobilizing from job site.

E. Performance of any testing or inspections as outlined in these Specifications shall in no way limit the Contractor’s responsibility to carry out the Work of the Contract in accordance with the Contract Documents, and shall in no way relieve the Contractor of achieving Substantial Completion as required by the Contract.

F. Defective Repair Materials: Repair materials not conforming to required lines, details, dimensions, tolerances or specified requirements will be removed and replaced at the Contractor’s expense.

G. The Engineer will determine repair or replacement of defective materials.

H. Do not patch, fill, touch-up, repair, or replace exposed defective materials except upon express direction of Engineer for each individual area.

I. Owner will pay for first inspection and first re-inspection by the Engineer. Any re-inspection required after first re-inspection will be at the Contractor’s expense.

22.0 MANUFACTURER'S INSTRUCTIONS

A. When Contract Documents require that installation of work shall comply with manufacturer's

printed instructions, obtain and distribute copies of such instructions to Owner and Engineer prior to work commencement.

B. Handle, install, connect, clean, condition and adjust products in strict accord with such

instructions and in conformity with specified requirements. Should job conditions or specified requirements conflict with manufacturer's instructions, do not proceed with work without clear instructions.

C. Perform work in accordance with manufacturer's instructions. Do not omit any preparatory

step or installation procedure unless specifically modified or exempted by Contract Documents.

23.0 TRANSPORTATION AND HANDLING

A. Arrange deliveries of products in accordance with construction schedules. Coordinate to avoid

conflict with work and conditions at the site. B. Deliver products in undamaged condition, in manufacturer's original containers or packaging,

with identifying labels intact and legible. C. Immediately on delivery, inspect shipments to assure compliance with requirements of contract

documents and approved submittals, and that products are properly protected and undamaged.


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Any materials that are found to be damaged or stored in any manner other than stated above will be automatically rejected, removed and replaced at the Contractor's expense.

D. Store materials out of direct exposure to the elements. Store all roll goods on a clean, flat and

dry surface. All material stored on the roof shall be stored on pallets. Store materials on the roof in a manner so as to preclude overloading of deck and building structure. Store materials such as solvents, adhesives and asphalt cutback products away from open flames, sparks or excessive heat. Cover all material using a breathable cover such as a canvas; other non-breathable plastic coverings are not acceptable.

E. Handle all materials in such a manner as to preclude damage and contamination with moisture

or foreign matter. Handle rolled goods to prevent damage to edges or ends. Any material that has deteriorated or has been contaminated shall not be used and shall be immediately removed from the site.

F. Use only access to buildings as designated by the Owner. Do not drive vehicles on grassy areas,

unless otherwise directed by the Owner. The Contractor shall repair or replace, as directed by the Owner, any damaged areas caused by this contract. The Contractor shall bear all costs for repair. Secure a written method of access from the Engineer prior to commencement.

G. Contractor shall limit use of premises for Work, for storage, and for access to allow for Owner

occupancy. Storage of equipment shall be at location designated by Owner. Obtain approval of Owner for on-site storage of materials.

H. Contractor shall obtain and pay for use of additional storage or work areas needed for

operations under this Contract.

24.0 MATERIAL REQUIREMENTS

The Contractor shall provide all materials required to complete the Work of this Specification. This specification is written based on Carlisle Building Products for the materials identified; approved equals are accepted as alternate products. The following are acceptable manufacturers:

A. Firestone Building Products B. Johns Manville C. Approved Equal

24.1 General A. Deliver materials in manufacturer’s original containers in a dry and undamaged condition,

with seals and labels intact with expiration dates. Materials that are past the expiration date shall be removed from the site.

B. Store materials in weather protected areas, clear of ground and moisture.


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C. All materials shall be handled, transported, and stored in a manner that will preserve their quality and fitness for the Work.

D. Any material that has deteriorated or has been contaminated shall not be used and shall be

immediately removed from the site. E. The use of asbestos containing or lead containing materials is prohibited on this project. F. Acquire materials from the same source for all repairs required in these Specifications. G. Materials that do not conform to these Specifications shall be considered unacceptable. Such

materials, whether in place or not, shall be removed from site. H. Storage and application temperatures and environmental conditions for materials used shall

be as specified by the material manufacturer. 24.2. Material Specification 24.2.1 Rigid Roof Insulation:

D. Roof insulation shall be UL and/or FM approved. Insulation shall be approved in writing by the insulation manufacturer for intended use and for use with the specified roof assembly.

E. Polyisocyanurate Roof Insulation: Tapered panels and standard fill panels composed of a closed cell, rigid Polyisocyanurate foam core material, integrally laminated between glass fiber facers, in full compliance with ASTM C 1289, Type III. Insulation shall have an R-value of 25.

F. Gypsum Sheathing Panel: A panel composed of gypsum based, non-structural water resistant

core material integrally bonded with fiberglass mats on both sides having a nominal thickness of 1/4 inch. The panel surface shall be factory primed with a non-asphaltic primer. Acceptable types are as follows: • Dens-Deck Prime Gypsum Roof Board, by Georgia Pacific Corporation; Atlanta, GA

G. Eliminailer – T: Install Eliminailer – T, manufactured by Metal Era to the roof edge to

accommodate additional insulation thickness at the perimeter.

H. Wood Nailer/Blocking: Provide new wood blocking to raise the existing curbs where insulation thickness has increased to maintain existing flashing height, or to replace damaged existing nailers.

1. Lumber for blocking and nailers shall be Construction Grade Douglas Fir or Yellow Pine. 2. Plywood shall be 1 inch APA rated exterior sheathing. 3. Wood shall be pressure treated using Alkaline Copper Quaternary (ACQ) treatment or other

approved treatment for the authority having jurisdiction. 4. Wood shall be dried to a moisture content less than 18 percent.

I. Insulation Assembly Attachment:

1. Use low rise spray polyurethane foam as recommended by the manufacturer.


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24.2.2 Single-Ply EPDM Roofing Membrane Assembly: A. Ethylene Propylene Diene Monomer (EPDM) Sure Seal non-reinforced Membrane, Black 90 mil

thick manufactured by Carlisle Building Products Inc.

B. Flashing Membrane Assembly:

1. Sure-Seal 60 mil thick membrane manufactured by Carlisle Syntec Inc. 2. Sure-Seal pressure sensitive Elastoform flashing

C. Pre molded inside and outside corners: manufactured by Carlisle Syntec Inc.

D. Sure-Seal SecurTAPE

E. Pipe Seals: Sure-Seal pressure-sensitive pipe seals

F. Penetration Pocket Sealer: Pourable sealer G. Bonding Adhesive for Sure-Seal EPDM Membrane: Solvent free EPDM bonding Adhesive

H. Carlisle EPDM primer I. Cleaning Solvent: Weathered Membrane Cleaner J. Edge Sealant: Cut-Edge Sealant (only required where reinforcement scrim extends to edge of

membrane) K. Sealer: Carlisle Water Cut-Off Mastic

L. Sealant/Caulk: Universal single ply sealant

M. Vapor Barrier:

a. Base Sheet: vented base b. Vapor Retarder: Carlisle 725TR 40 mil thick membrane c. CCW Cav-Grip low VOC contact adhesive to be used prior to 725TR application if

adhered option is selected.

N. Metal Edge Termination: Metal edge termination shall be compatible with new Metal Era Eliminailer – T.

a. SecurEdge 1000 with .040” aluminum snap on fascia cover.

O. Gutters: Seal-Tite gutters as manufactured by Metal Era, 6 inch wide and fabricated from .040 aluminum.

P. Walkway pads: Sure-Seal Pressure sensitive walkway pads.

Q. Non-penetrating Supports: DS adjustable duct supports manufactured by MIRO Industries, Inc.


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R. Roof Drains: Roof drains as manufactured by Zurn, or Josam with duracoated cast iron body:

a. No hub outlet b. Cast iron dome c. Outlet size to match existing RWC piping

24.2.4 Metal Flashing A. Counterflashing: Shop-fabricate new metal counterflashing from 24-gauge stainless steel

conforming to ASTM A167, Type 304. Comply with standard industry details as shown by SMACNA in the “Architectural Sheet Metal Manual.” Provide drip edges which project ¾ inch minimum at a 45 degree angle and folded back to form a hem on the concealed side of exposed edges.

1. Overlap base flashing 4 inches minimum, unless existing conditions prohibit installation.

Lap vertical joints a minimum of 4 inches and apply sealant. Miter lap seam, and close corner joints.

2. Seal lap joints with one-component silicone elastomeric sealant. B. Miscellaneous Sealants:

1. Metal to Metal lap splices: One-part silicon elastomeric sealant, Spectrum 1as manufactured

by Tremco or Equal. 2. Penetration Flashing, counterflashing, exposed surfaces and interfaces: one-part

polyurethane low- modulus elastomeric sealant, Dymonic by Tremco or Equal 3. Masonry Control Joints: one-part polyurethane low- modulus elastomeric sealant, Dymonic

by Tremco or Equal

C. Miscellaneous Fasteners: 1. Fasteners shall be compatible to all materials to which they come in contact. Install

components with fasteners suited to materials. 2. Base Sheet fastener shall be 1.7 “ twin-lok (Para-lok) fasteners 3. Concrete anchors shall be a minimum of 1” NAILCON anchors by ITW Buildex

shall be used to attach membrane to masonry walls at 9” on center. Or as recommended by product Manufacturer.

4. Concrete screws shall be a minimum of 2-3/4” by ¼” Hex head Tapcons by ITW Buildex will be used to attach Wood Nailer to parapet wall. Attach nailer to existing concrete by staggering fasteners at 12” on center. Or as recommended by Coping Manufacturer.

5. Wood nailer screws shall be a minimum of 2-1/2” Stainless Steel woods screws shall be used to attach wood nailer to nailer(s). Nails will not be permitted.

6. Base Sheet fastener shall be 1.7 “ twin-lok fasteners 7. Anchors for wall mounted ladders: HY-20 or HY-150 anchoring system by HILTI, 8. with ½ inch diameter Type 304 stainless steel threaded rods, washers and bolts

24.2.5 Miscellaneous Metals A. Deck Infill: Metal Type B deck 1-1/2 by 20 gauge


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B. Wall Panels: 12 inch wide Flush Wall Panels as manufactured by Petersen Aluminum Corp.

C. Steel Ladders: Furnish and install new wall mounted galvanized steel access ladders, as

manufactured by FS Industries or equal to provide the following access:

1. Roof A to Roof B: Series M with walk through rails 2. Roof B to Roof C: Series M with walk through rails 3. Roof D to ground: Series M walkthrough with safety cage and security ladder guard.

25.0 REPAIR PROCEDURES

This repair specification includes procedures for complete tear off of the existing built-up roof membrane and associated flashing, insulation, and installation of a new adhered EPDM membrane and tapered insulation system on all roof sections.

25.1 GENERAL

A. Provide all labor, materials, equipment and supervision to perform the work of this Section.

B. Upon approval by the Owner, the Contractor shall proceed with work in a given area. Protect building surfaces, interior finishes, mechanical, plumbing, electrical, lighting, fire suppression equipment, etc. against damage from repair work or associated dust, vibration, etc. This may include, but not limited to, protective hoods, addition of filters, tarps, adding temporary supports, etc.

C. Materials that do not conform to the specifications shall be considered unacceptable. Such materials, whether in place or not, will be rejected and shall be removed from the site. No claim for extra payment shall be made as a result of Work associated with such rejection.

D. Markings used must be removed at the Contractor’s expense if still evident at the completion of the job.

E. Verify surface conditions are adequately prepared to receive Work of this Section.

F. Prior to the use of materials of this section, refer to the “Safety” section of the Material Safety Data Sheets (MSDS) provided by the material manufacturer for applicable cautions and warnings. A copy of the MSDS sheets shall remain in possession of the Contractor at the site at all times.

G. Notify Owner and Engineer minimum 24 to 48 hours prior to commencement of operations.

H. Maintain records of all repair procedures, concrete placements and sealant and drainage component installation to include weather and substrate conditions, batch numbers, and labor force performing the work.

I. Locations adjacent to and including actual repair areas with finished surfaces (i.e., paint, coatings, textures, etc.) that are removed, altered, or damaged as a result of any work process


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shall be restored by the Contractor to its original condition and appearance at no expense to the Owner.

25.2 PREPARATION

A. Contractor shall raise pipes, vents, curbs and other roof openings to maintain 8” minimum height above new roof membrane.

B. Notify Owner of work that may affect the property, potential noise, utility outage, or disruption. Coordinate with owner.

C. Wall preparation. Repair minor cracks, surface irregularities, open joints, etc. in masonry walls using a quick dry grout mix to ensure a smooth surface for application of the roofing/ flashing membranes.

D. Contractor is to take appropriate precautions to prevent asphalt from entering the building. 25.3 DEMOLITION/SUBSTRATE PREPARATION A. Remove all existing roofing components on Roof Section A, B, C, D & E including:

1. BUR membrane 2. Insulation and fasteners 3. Flashings and edge metal that is in contact with the new membrane system. 4. Deteriorated wood blocking 5. Non-functional penetrations, curbs or equipment stands

B. Removal of roof shall be performed in a manner as to not produce airborne dust.

C. Remove existing wall panels on the short walls of the elevator extension on Roof Section B and remove EPDM membrane from the elevator roof.

D. Coordinate removal of abandoned mechanical equipment, skylights, roof hatch (section B) and

capped curbs with the Owner.

E. Verify deck is dry, sound, clean and smooth, free of depressions, or projections, properly sloped to drains. Notify Engineer of any deck defects. Replace deteriorated or damaged deck with a material of similar composition, thickness and finish. Consult Engineer for procedures prior to repairing deck.

F. Sweep or vacuum all surfaces prior to commencement of roofing.

G. Prior to preparation of membrane, Contractor shall verify existing topography of deck surface.

Correct local elevation changes that may affect drainage, prior to installation of membrane. Ponding in excess of ½” deep shall be corrected.

H. Beginning of installation means acceptance of the surface.

I. Provide temporary waterproofing protection between removal stages and installation of new roofing materials.


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J. Confirm compliance with current code requirements. 25.4 NEW AND/OR EXISTING DRAIN INSTALLATION A. Install new drains at the locations of all existing roof drains and connect to existing piping.

B. If new drains are to be installed where none was previously, layout the location of the new

drains in the center of each half of the roof, as indicated. C. Remove the existing gypsum deck in a neat manner in order to set the new roof drain assembly

flush with the roof deck and secure with under deck clamps. Provide bracing as required. D. Install new piping to connect drain to existing plumbing at the location indicated. E. New piping shall be erected and pitched to insure proper drainage.

25.5 NEW WOOD CURB AND ELIMINAILER-T INSTALLATION A. Install new wood blocking to existing curbs at roof penetrations that require raising to

accommodate thickness of new roof. B. Frame wood members to a close fit, set accurately to required lines and levels and secure

rigidly in place in accordance with the drawings. C. Do not allow aluminum to have direct contact with ACQ lumber. D. Install and fasten Elimailer-T along the roof perimeter edges where the new roof elevation

increases in height. 25.6 NAILED BASE SHEET INSTALLATION A. Surfaces to receive base sheet and vapor retarder must be clean and dry. B. Lay the base sheet over the entire area to be roofed. Lap sides of sheets 3 inches and ends 6

inches. C. Fasten each sheet every 7 ½ inches through the laps and stager fasten the remainder of the sheet

in 2 rows on nominal 12 inch centers with fasteners in each row 10 inches on center. 25.7 VAPOR RETARDER INSTALLATION A. Surfaces to receive vapor retarder must be clean and dry. B. Apply primer by spray, brush or with a long nap roller at the applicable coverage rate. Allow

primer to dry 1 hour minimum until satisfactory cure. Prime only areas to be waterproofed the same day and re-prime if area becomes dirty.


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C. Apply self-adhering vapor barrier from low to high point in a shingle fashion. Overlap all edges at least 2 ½ inches. End laps shall be staggered. Place membrane so as to avoid wrinkles and fismouths and immediately roll with a 100-150 pound weighted steel roller.

D. Turn vapor barrier up a minimum of 3 inches at walls, curbs and deck penetrations, unless

otherwise recommended by the manufacturer. E. Head laps shall be heat welded by hand. D. Surfaces to receive vapor barrier must be clean and dry. 25.5 INSULATION INSTALLATION

A. Install insulation panels with end joints offset; edges of the panels shall be in moderate contact

without forcing applied in strict accordance with the insulation manufacturer's requirements and the following instructions. Where insulation is installed in two or more layers stagger all joints between layers.

B. Insulation - multiple layers: Loose lay the insulation layers on the substrate. Gaps between

panels shall not exceed ¼ inch. Excessive gaps shall be filled with spray foam and perimeter of curbs and penetrations shall be sealed with spray foam at the deck level.

C. Gypsum Sheathing Panel: loose lay the gypsum sheathing cover board over the insulation being

sure to stagger joints. Attach insulation in accordance with appropriate method specified below.

D. Provide tapered insulation saddles as required at all locations of curbs, scuttles, etc., where pitch of the new roofing is interrupted.

E. Contractor is to take appropriate precautions to prevent asphalt from entering the building.

F. Insulation Attachment: Insulation shall be attached using low-rise spray polyurethane foam adhesive, and supplied by the manufacturer of the primary roofing products. The attachment pattern for each insulation panel to be used shall be as recommended by the insulation manufacturer and approved by the manufacturer of the primary roofing products. Insulation should be a minimum 1/8 inch per foot tapered toward drains. The dens-deck gypsum board shall be installed on top of the insulation with adhesive.

25.6 ROOF MEMBRANE INSTALLATION

A. Membrane Placement and Bonding

1. Sweep all loose debris from the substrate.

2. Sure-Seal membrane shall be loose laid and positioned over the acceptable substrate.

3. Fold Sure-Seal membrane back so half the underside is showing.

Fully adhere the EPDM membrane to the acceptable substrate with low-VOC or solvent free adhesive at the rate specified on the container label.

4. Use Sure-Seal Bonding Adhesive to underside of the membrane and the corresponding


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substrate area. Do not apply Bonding Adhesive along the splice edge of the membrane to be spliced to adjoining sheet.

5. Apply adhesive evenly, without gobs or puddles with a plastic core medium nap paint roller. A continuous coating of both surfaces at a coverage rate of approximately 120 SF per gallon per one surface or approximately 60 SF per gallon per finished surface (includes coverage on both membrane and substrate).

6. Adhesive shall dry until it is tacky but will not string or stick. 7. Roll the coated membrane into the coated substrate.

8. Contractor shall avoid wrinkles or ridges.

9. Brush down the bonded section of the membrane sheet immediately after rolling the

membrane into the adhesive in accordance with manufacturer’s recommendations. 10. Fold back the unbonded half of the sheet and repeat the bonding procedures.

11. Install neighboring membrane sheets in the same manner, overlapping edges a minimum of

3 inches.

B. Membrane Splicing

1. Apply sure seal primer to the splice area. When tape is not factory-applied, position SecurTAPE onto bottom membrane sheet with the edge of the release film along a line marked ½ inch out from the top sheet. Press tape onto sheet using hand pressure, overlapping tape roll ends a minimum of 1 inch. Remove the release film and press top sheet onto tape using hand pressure. Roll the splice with a 2 inch steel roller.

2. Install a Pressure-Sensitive T-Joint cover or a 6 inch wide section of pressure-sensitive

Elastoform flashing over all field splice intersections. The use of lap sealant with tape splices is optional except at tape overlaps and cut edges of reinforced membrane.

C. Additional Membrane Securement

1. EPDM membrane must be secured at the perimeter of each roof level, roof section, expansion joint, curb, skylight, interior wall, penthouse, etc., at any angle change which exceeds 2 inch in one horizontal foot, and at other penetrations in accordance with Carlisle’s details. Additional membrane securement shall be provided by Pressure-Sensitive RUSS or seam fastening plates.

D. Flashing

1. Sure-Seal 60 mil membrane shall be used as flashing for the membrane system.

2. Follow manufacturer's typical flashing procedures for all wall, curb, and penetration flashing


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including coping and roof drain applications.

3. Remove all loose existing flashing material.

4. Use Cut Edge Sealant on all cut edges of reinforced membrane (where the scrim reinforcement is exposed).

5. Crease the flashing at angle changes to prevent bridging.

6. Base flashing shall be fully adhered to vertical walls and parapets.

7. Membrane shall be terminated in accordance with manufacturers recommendations.

8. Install Carlisle’s termination bar and water cut of mastic under all counter flashings and

surface mounted reglets. Termination bar shall be fastened a 9 inches on center.

25.7 ROOF SYSTEM INTERFACE WITH RELATED COMPONENTS

A. Plumbing Vents: Contactor shall verify vent is 8” minimum height above roof membrane and

extend pipe if necessary. Pipe shall be a comparable material to existing pipe and shall be extended using a watertight rubber pipe clamp with stainless steel fasteners.

1. EPDM Membrane System: Flash pipes with molded pipe flashing in accordance with

manufacturers recommendations. Where molded pipe flashing cannot be used apply field fabricated flashing in accordance with manufacturer’s recommendations.

B. Drains: Furnish and install all new drain assemblies at the same location as existing drains. C. Existing Drains: Drains shall be sumped and shall not pond water at the perimeter of the sump. D. Exhaust fan units and other equipment shall be temporarily moved as required to install roofing

materials complete and in accordance with plans and specifications. When units and equipment are to be moved, they shall be carefully disconnected and removed to a protected area so as not to damage any part or component thereof, and shall be reconnected in such a way that they are restored to prior operating condition. Appropriate measures shall be taken to prevent dust, vapors, gases or odors from entering the building during roof removal, replacement or repair.

E. Small Pipe Supports: Support all gas lines and conduits which run horizontally over the roof

membrane surface. The Pipe support shall be installed every 10 feet. F. Sealants: Caulk all exposed finish ply edges at the transition to metal flashings incorporated into

the roof system with a smooth continuous bead of the specified sealant. G. Wood Nailers. Where necessary install wood nailer in accordance with FM Loss Prevention Data

Sheet 1 - 49.

H. At the roof perimeter edges install new Eliminailer – T in lieu of new wood nailers. Install in accordance with the manufacturer’s recommendations.


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25.8 SHEET METAL A. FABRICATION

1 Perimeter flashing shall be fabricated by approved manufacturer. 2 Counter flashing to be fabricated true to shape, accurate in size, square and free from

distortion or defects. Form pieces in longest practical lengths. B. EXAMINATION AND PREPARATION

1. Verify roof openings, curbs, pipes, sleeves, ducts, or vents through roof are solidly set and nailing strips located and level.

2. Verify membrane termination and base flashings are in place, sealed, and secure.

C. INSTALLATION

1. Conform to the drawing details, specifications and manufacturer’s instructions.

2. Fit components tightly in place. Make corners square, surfaces true and straight in planes, and lines accurate to profiles.

3. Flashings to form a watershed. No flashing edge shall be allowed to hold water.

4. Seal all metal joints watertight.

5. Counter flashing shall be installed flush to the concrete wall, with concrete anchors at nine

inches on center. A bead of sealant shall be applied to top junction of counter flashing and vertical surface forming a watertight condition.

6. Exhaust fan flashing should be constructed in one piece. It should start at the lower edge of

the curb over the top of the base flashing, and extend up until it is received under the exhaust hood flange.

25.9 SEALANT REPLACEMENT PROCEDURES

25.9.1 General A. Execute sealant Work in accordance with the Drawings, Specification, and manufacturer’s

recommendations. B. Materials that do not conform to the specifications shall be considered unacceptable. Such

materials, whether in place or not, will be rejected and shall be removed from the site. No claim for extra payment shall be made as a result of work associated with such rejection.

C. The Contractor shall verify that all materials or products used are compatible to the substrates

and other materials used in the rehabilitation with which they may come in contact. Defects


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that result due to an incompatibility of products shall be removed and replaced at the Contractor’s expense.

D. Protect adjacent surfaces from damage from the work of this Section. E. Application temperature range shall be Minimum-40 °F, Maximum-110 °F. F. Verify surface condition is adequately prepared to receive Work of this section. G. Prior to the use of materials of this section, refer to the “Safety” section of the Material Safety

Data Sheets (MSDS) provided by the material manufacturer for applicable cautions and warnings.

H. Notify Engineer minimum 24 hours prior to commencement of operations. I. Maintain records of all sealant applications. Keep accurate records of the following during the

time of sealant application: material name and batch number; surface preparation; substrate moisture condition; weather conditions; method of application; and material quantities placed.

25.9.2 Sealant Joint Detail A. Prepare substrates in accordance with the sealant manufacturer’s instructions. The surfaces must

be free of moisture, oil, grease, dirt, and other debris. Perform any other surface preparation required by this sealant manufacturer.

B. Insert the appropriate sized backer rod into all opened and prepared joints, seams and cracks that

do not meet the maximum depth requirements of the sealant. Backer rod width shall be 25% greater than the joint width.

C. New backer rod shall be installed so that the sealant depth is one-half the joint width, except that

the depth shall not be less than the manufacturer’s recommended minimum dimension. D. The use of open cell backer rod shall be prohibited. E. If joints that are too shallow for the use of backer rod, install a bond breaker tape at the back of

the opening to prevent three point adhesion of the sealant. F. Install sealant only when climate conditions meet sealant manufacturer’s recommendations. G. At the window perimeter contractor shall install a cove joint. At brick expansion joints,

contractor shall install a flat sealant joint. H. Gun or trowel-apply with specified sealant and tool to provide sound, consistent joint, effectively

filling the open space. Profile of new sealant joint shall be 2:1 width to depth, but not less than ¼-inch in depth.

I. Dry-tool the sealant immediately after application to ensure continuous adhesion to both sides

of the opening. Tooling shall be performed within 10-20 minutes of sealant installation.


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J. Sealant shall completely fill joint cavity to backer or substrate material. K. Finished sealant joint shall be tooled smooth, wrinkle-free, sag-free and without pockets or

imbedded impurities, smears or width variations and in total contact with joint sides. Any sealant joints not meeting these criteria shall be replaced at no cost to the Owner.

L. Clean excess sealant from finished surfaces in accordance with manufacturer’s

recommendations. M. Protect sealant from damage during curing. N. Remove markings caused by the work of this Section from finished surfaces. In area where

finished surfaces are soiled by work of this Section, consult manufacturer of surfaces for cleaning advice and conform to their instructions.

25.10 METAL PANEL INSTALLATION

A. Conform to the drawing details, specifications and manufacturer’s instructions.

B. Substrate wall panels are being attached to shall be sound.

C. Install starter flashing level and plumb and install metal panels plumb and straight in planes.

D. Fit components tightly in place. Make corners square, surfaces true and straight in planes, and

lines accurate to profiles.

E. Install corner trim and roof flashing to complete the assembly. 25.11 DECK INFILL A. Cut metal deck to fit the opening in the gypsum deck.

B. Metal deck shall be supported by the top flange of the steel roof joists.

C. Provide a 5/8 in. puddle weld to each rib at each supporting member. D. Install layers of gypsum board to bring the deck to the level of the existing deck and fasten to

the new deck. 25.12 METAL LADDER INSTALLATION

A. FABRICATION

1 Steel ladders shall be fabricated by approved manufacturer based on shop drawing submittal. 2 Steel ladders to be fabricated, accurate in size and length to conform to the location being

installed. B. INSTALLATION

1. Verify wall substrate is suitable to receive anchors.


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2. Conform to the drawing details, specifications and manufacturer’s instructions. 3. Install number and size of anchors at locations to receive on ladder 4. At each location drill a 5/8 inch diameter hole through the brick and into the backup wall.

Total depth of the hole into the wall shall be approximately 4 inches minimum. When drilling through the brick use a rotary drill, do not use hammer drill.

5. Remove dust and debris from the hole by blowing with compressed air into hole. Limit dust by using dust recovery system.

6. Inject epoxy or grout into hole while withdrawing mixer extension. Press anchor into hole while turning.

25.13 FINAL CLEANING A. Clean all work areas of construction materials, debris, equipment, etc. Remove all debris

from site caused as a result of the Work.

B. Repair any components that were damaged or altered as a result of the work at no expense to the Owner, including landscaped areas.

C. Return or provide all keys, passes, equipment, extra materials, etc. provided to the Contractor

or purchased by the Owner as part of the Work.

D. Remove any dumpsters and temporary bathroom facilities from site.

END OF SPECIFICATION


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EXISTING CONDITIONS PHOTOGRAPHS

EISENHOWER CENTER GETTYSBURG, PA


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Photo 1: An overview of the roof surface of Roof Section A.

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Photo 2: Elevator roof with metal panel walls.


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Photo 3: Elevator EPDM roof and exterior wall panels.

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Photo 4: An overview of main level roof surface of Roof Section B.


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Photo 5: A view of Roof Sections D and F.

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Photo 6: Skylights on Roof Section E to be removed and filled in.

Date post:	14-Apr-2022
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