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S A F E T Y &T I E - B A C KA N C H O R S

Window Cleaning/Suspended Maintenance

Equipment & Fall Protection Systems

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E X P E R T ST H E S A F E T Y R O O F A N C H O R

EXPLANATIONA fundamental concept in the use ofmaintenance contractor supplied conven-tional suspended access equipment suchas bosun’s chair, single work cage orplatform is that there must be two inde-pendent means of support for eachworker using the equipment.

The first means of support is the accessequipment itself tied back to an anchor.The second is usually provided by a sep-arate fall arrest system consisting of a:

• full body harness;• lanyard (with shock absorber);• mechanical rope grabbing device;• lifeline;• lifeline anchor.

In addition, anchors, which are used fortie-backs or for securing lifelines, are alsoan effective, practical means for directlysecuring a bosun’s chair with descentcontrol equipment, the most popularmethod of window cleaning today (directrigging).

Bosun’s chair is the equipment of choiceamong window cleaners. Pro-Bel safetyanchors (see photo at right) are used tosecure chair and separate lifeline.

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Typical rigging and fall arrest requirement scenarios using Pro-Bel safety lifeline and tie-back anchors.

Pro-Bel safety anchors may be used forsecuring lifeline, for tie-back of primaryrigging equipment or to directly rig abosun’s chair.

LIFELINES

SUSPENSIONLINE

SAFETY ANCHORFOR SERVICINGVIDEO CAMERA

CARPETSTRIP

PRIMARY SUSPENSIONLINE

BOSUN’S CHAIR

BOSUN’S CHAIR

SINGLEWORKCAGE POWERED

PLATFORM

PRIMARYSUSPENSIONLINE

LIFELINE

LIFELINE

PRO-BEL ROOFANCHORS

PRO-BEL ROOFANCHORS

TIE-BACK

TIE-BACK

OUTRIGGER BEAM WITHCOUNTERWEIGHTS

PRO-BEL WALL ANCHORS

PRIMARYSUSPENSIONLINE

PARAPETWALLCLAMP

The chair is rigged directly to an anchor inline with the point of suspension. A sep-arate independent anchor on the roof isrequired to secure the worker’s fall arrestlifeline.

All Buildings Require Roof AnchorsExtract From ANSI/IWCA I-14.1Window Cleaning Safety Standard:4.1.1 All buildings where window clean-ing is performed that employ suspendedequipment shall be equipped with roofanchorages or other approved deviceswhich will provide for the safe use of theequipment in conformance with the pro-visions of this Standard.

S A F E T Y & T I E - B A C K A N C H O R S

DESCRIPTIONNote: Pro-Bel tie-back/lifeline anchorsand direct rigging anchors are the sameand are used interchangeably.

Safety Anchor TypesThere are literally dozens of Pro-Belsafety anchor products available. Eachhas been engineered to satisfy a particu-lar job requirement. They can be catego-rized as follows:

PB and PBE Series Wall AnchorsPB wall anchors are fabricated using apatented stainless steel U-bar which isdetachable for ease of replacement, con-crete forming and waterproofing. PBEanchors are a more economical alterna-tive to PB anchors and are used whenflashing or waterproofing is not a consid-eration.

PBE Series Roof AnchorsPBE Series anchors have a non-detach-able stainless steel U-bar and are flashedusing a spun aluminum flashing sealed atthe top with a heat-shrink rubber collarflashing.

PB Series Roof AnchorsPB Series anchors, somewhat moreexpensive than PBE Series anchors, arefabricated using a patented stainlesssteel U-bar and stainless steel cap flash-ing which is detachable for ease ofreplacement.

USEANSI/IWCA I-14.1 (3.9 Anchorages)states that “Building owners and windowcleaning contractors shall not allow sus-pended work to be performed unless ithas determinded that the building hasprovided, identified and certified anchor-ages complying with Section 9 or 10 for:independent safety lines; tie-backs foroutriggers, parapet clamps and cornicehooks; primary support anchorages forpowered and manual boatswain’s chairs;primary support anchorages for ropedescent systems; horizontal (rope) linesor lifelines; and wherever else required.” Pro-Bel roof anchor set into concrete pier

(PB70).

Pro-Bel PB type wall anchor in concretewall of rooftop mechanical room.

Pro-Bel wall anchor recessed in box flash-ing (PB71S).

Pro-Bel PB type steel pier roof anchor withdetachable cap and aluminum flashing.

A-3

Pro-Bel PBE type roof anchor with alu-minum flashing and heat-shrink rubbercollar flashing.

Pro-Bel “flip-up” terrace anchor con-cealed with cut out core trimmed withstainless steel band and tabs.

FEATURESAll corrosion resistant materials;anchor components are stainless steeland/or hot dipped galvanized steel.

Standards conformance; all anchorscomply with OSHA and ASME/ANSI/IWCA safety requirements for windowcleaning, and various materials stan-dards.

Installation flexibility; Pro-Bel safetyanchors are suited to a broad range ofbuilding structures, including concrete,structural steel or precast panels.Securement methods include cast-in-place, through bolts, bolt around, weld-ing, or chemical epoxy fastening.

Engineer certified; OSHA and ANSI/IWCA I-14.1 requires that safety anchor-ing devices be designed by or under thedirection of a registered professionalengineer experienced in such design.Pro-Bel safety anchors meet this criteriaand anchor performance is based ondata derived from testing and/or engi-neering calculations. Anchors have beentested to ensure fracture or detachmentdoes not occur with the application of a5,000 lb (22.2 kN) load in any direction.

Compatible with roofing; Due to strin-gent OSHA anchor placement require-ments i.e. in line with the point of sus-pension and free fall distance, anchors,for the most part, must necessarily beplaced on the roof. An important consid-eration in the design of Pro-Bel anchorproducts is the need to maintain the longterm watertight integrity of the building.Pro-Bel products are designed with a fullunderstanding of reliable flashing/sealingtechniques to satisfy any roof condition.

Where anchors are located in water-proofed areas of a roof, a pier is normal-ly provided to elevate the anchor abovethe waterproofing. In the case of metalpier anchors, the pier is supplied with theanchor and a prefabricated flashing tosuit roof type as required. With concretepier anchors, the pier must be formed,the anchor cast in, and the flashing fabri-cated at the job site.

Sole responsibility; Pro-Bel providescomplete fall protection products/sys-tems from concept to the supply andinstallation of same, including annualinspection.

Specific liability insurance; all Pro-Beldavit installations automatically carry$2,000,000.00 coverage against product/system failure (over 4000 projects suc-cessfully completed to date).

MATERIALS/FABRICATION(as applicable)

U-bar, anchor bolts, detachable caps:Type 304 stainless steel with yieldstrength of 42 Ksi (290 MPa) or mild steelto ASTM A36, Type 350W with yieldstrength of 43 Ksi (297 MPa), hot dippedgalvanized to ASTM A123/A 123M-2000.

Hollow steel section (HSS) piers: gal-vanized mild steel as above with yieldstrength of 50 Ksi (345 MPa), with orwithout urethane foam insulation.

Plate and all other sections: galva-nized mild steel as above with yieldstrength of 43 Ksi (297 MPa).

Seamless spun aluminum flashing (forsteel pier anchors): Type 6061-T6 alloyto ASTM B221-2000 with deck flangeflashed in using felt plies to NRCA orCRCA recommendations or roofingmembrane manufacturer’s instructions,as applicable.

Top of anchor sealing (for steel pieranchors): torch applied heat-shrink rub-ber collar flashing or detachable U-barcomplete with stainless steel watertightcap.

Bolts, nuts and washers: Type 304stainless steel or galvanized steel toASTM A325.

Note: Illustrated on the next few pagesare only some of the many model varia-tions of anchor products available.Anchors can be engineered to satisfy vir-tually any access requirement.

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Worker above uses Pro-Bel “Hands-Free”horizontal lifeline cable to safely accessrecessed windows as well as customledge-mounted Pro-Bel safety anchors(one for bosun’s chair and one for lifeline)for” drops” below.

Pro-Bel wall anchor bolted to steel beamsupporting rooftop AC chiller unit.

Minimum anchors; OSHA and ANSI/IWCA I-14.1 requires that equipment tie-backs be “installed at right angles to theface of the building whenever possible”.This requirement, can result in anunnecessary number of installedanchors. Pro-Bel has developed anchorplacement chart data to help designerslocate anchors to suit tie-back and life-line requirements. This data ensurescompliance with OSHA fall protectioncriteria while reducing the number ofanchors (and roof penetrations) required.

S A F E T Y & T I E - B A C K A N C H O R S Fall Protection Systems (continued)

Note Re: Alternative Finish to Galvanizing. For all anchor bases and supports, Pro-Bel offer a superior protective coating _ Protex _ inlieu of galvanizing if desired. Pro-Bel Protex is a 3/32” (2.4 mm) thickness, black colored, two component spray on, flexible 100% solids ther-moplastic (TPU) polyurethane/polyurea system. Protex provides exceptional impact and abrasion resistance and is factory applied via highpressure impingement mix polyurethane dispensing equipment. See Pro-Bel Protex Technical Data Sheet # R-2 for complete information.

A-5

Terrace application shows how a series of Pro-Bel stainless steel “flip-up”anchors can be completely concealed with pavers when not in use.Anchors are arranged to suit both bosun’s chair and suspended platformapplications.

Series of Pro-Bel wall anchors bolted to structural con-crete parapet, used to secure a bosun’s chair suspensionline and workers’ lifeline (interchangable).

Window cleaners preparing to launch a contractor supplied platform over a parapet wall using Pro-Bel davits with rotating heads. Steelcables are used to suspend the platform while workers are tethered to independent Pro-Bel roof anchors with rope lifelines.

TESTING*Testing of Pro-Bel wall and roof anchorsinvolve a variety of both shop and on-sitetest methods including static, dynamic anddestructive procedures. All testing is car-ried out by independent testing agenciesor under the direction of a professionalengineer in accordance with recognizedstandards.

Anchors secured using epoxy adhesiveare tested to 5000 lbs (22.2 kN) to ensureagainst failure. The photos on this pageprovide an overview of Pro-Bel test pro-cedures.

* Test data available upon request.

The static load test in the above photo, which applies force using a heavy duty cablecome-along, was conducted to show that Pro-Bel wall and roof anchors comply with stan-dards that require the anchors be capable of resisting without fracture and/or pull-out aforce of 5000 lbs (22.2 kN). A similar test is performed on-site to verify strength of epoxyadhesive roof anchors.

Pro-Bel wall anchors secured to structural concrete using epoxy adhesive are load testedon-site using a hydraulic pull tester to verify strength and anchor bolt integrity.

Photo shows 8’-0” (2440 mm) high apparatusused for shock (drop) testing of Pro-Bel safe-ty U-Bar anchors. A 220 lb. (100 kg) weightwas connected to the anchor using a steeltest lanyard and dropped a distance of 4’- 0”(1220 mm). A series of anchors employingdifferent securements were tested and peakforces up to 18,522 lbs (8400 kg) were gener-ated without fracture to any part of theanchors.

A series of Pro-Bel safety U-Bar anchorswere tested to determine their ultimatestrength (destructive testing). The forceused to break the test specimens was pro-vided by a hydraulic system, a hookingmechanism, and support structure. Thehighest pressure recorded just before aspecimen was broken in this series of testsmeasured 32,445 lbs (4500 psi * 7.210 in2).

A-6


PRO-BEL MODEL # PB71S:1. STAINLESS STEEL U-BAR SAFETY ANCHOR;2. STAINLESS STEEL OR GALVANIZED BOLT;3. HEAVY DUTY HEX NUT & LOCK WASHER;4. GALVANIZED STEEL BACK PLATE.

RECESSED, CAST-IN-PLACE

Anchors aredesigned to a maxi-mum fall arrestingforce of typically1800 lbs (8.0 kN)when wearing abody harness with asafety factor of 2without any perma-nent deformationand to 5000 lbs(22.24 kN) againstfracture or detach-ment.


6” (150 mm) MIN 6” (150 mm) MIN

6” (150 mm) MIN

6” (150 mm) MIN

7-1/

2” (1

90 m

m)

4”(100 mm)

CAST-IN-PLACE

PRO-BEL MODEL # PB69S:1. STAINLESS STEEL U-BAR SAFETY ANCHOR;2. S.S. LOCK WASHER AND NUT 3. STAINLESS STEEL CAST-IN-PLACE ROD;4. FORMING NUT.5. GALVANIZED STEEL BACK PLATE.

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1

3

EPOXY ADHESIVE BOLTS

PRO-BEL MODEL # PB48S:1. STAINLESS STEEL U-BAR SAFETY ANCHOR;2. LOCK WASHER AND NUT;3. EXPOXY ADHESIVE ANCHOR BOLTS

PRO-BEL MODEL # PBE68:1. REINFORCING ROD TIES BY OTHERS;2. STAINLESS STEEL RECESSED BOX TYPE

SAFETY ANCHOR;3. S.S. FORM NAILING FLANGE

PRO-BEL MODEL # PB93S-A1. STAINLESS STEEL U-BAR SAFETY ANCHOR; 2. S.S. OR GALVANIZED BOLT, EXPOSEDTHREADS TO BE DEFORMED AFTER INSTALLATION; 3. STEEL REINFORCING c/w STEEL BASEPLATE TO SUIT; 4. HEAVY DUTY HEX NUT & LOCK WASHER; 5. EPOXY ADHESIVE ANCHORBOLTS.

2

3

2

1

3

THROUGH-BOLT

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4

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6” (150 mm) MIN

REINFORCED WALL ANCHOR WITH EPOXY ADHESIVE BOLT SECUREMENT AT FLOOR

BACK PLATE

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WALL ANCHOR SECUREMENTS

A-7

1

2Anchors aredesigned to a maxi-mum fall arrestingforce of typically1800 lbs (8.0 kN)when wearing abody harness with asafety factor of 2without any perma-nent deformationand to 5000 lbs(22.24 kN) againstfracture or detach-ment.


Anchors aredesigned to a maxi-mum fall arrestingforce of typically1800 lbs (8.0 kN)when wearing abody harness witha safety factor of 2without any perma-nent deformationand to 5000 lbs(22.24 kN) againstfracture or detach-ment.

1

THROUGH-BOLT

PRO-BEL MODEL # PB73-SDC1:1. STAINLESS STEEL U-BAR SAFETY ANCHOR

c/w S.S. BOLT & DETACHABLE S.S. CAP; 2. SEAMLESS SPUN ALUMINUM FASHING;3. GALVANIZED STEEL PIER;4. STAINLESS STEEL HEAVY DUTY HEX NUT &

LOCK WASHER;5. GALVANIZED STEEL BACK PLATE;6. TAMPERPROOF PIN

PRO-BEL MODEL # PBE74-00A4-S:1. STAINLESS STEEL U-BAR SAFETY ANCHOR 2. GALVANIZED STEEL PIER c/w BASE PLATE;3. SEAMLESS SPUN ALUMINUM FLASHING; 4. HEAT-SHRINK RUBBER COLLAR FLASHING;5. STAINLESS STEEL BOLTS c/w PLATES

WELDED TO BOLTS.

PRO-BEL MODEL # PBE75-S:1. STAINLESS STEEL U-BAR SAFETY ANCHOR;2. GALVANIZED STEEL PIER;3. HEAT-SHRINK RUBBER COLLAR FLASHING;4. SEAMLESS SPUN ALUMINUM FLASHING;5. EXISTING METAL DECK;6. FLAT STOCK DECK CLOSURE PLATE

(OPTIONAL)

PRO-BEL MODEL # PBE76-S:1. STAINLESS STEEL U-BAR SAFETY ANCHOR;2. GALVANIZED STEEL PIER c/w BASE PLATE;3. GALVANIZED STEEL BOLTS;4. HEAT-SHRINK RUBBER COLLAR FLASHING;5. SEAMLESS SPUN ALUMINUM FLASHING;6. FLAT STOCK DECK CLOSURE PLATE

(OPTIONAL); 7. STEEL BACK PLATE;8. HEAVY DUTY HEX NUT & LOCK WASHER.

PRO-BEL MODEL # PBE76-S:1. STAINLESS STEEL U-BAR SAFETY ANCHOR;2. GALVANIZED STEEL PIER c/w BASE PLATE;3. GALVANIZED STEEL BOLTS; 4. HEAT-SHRINK RUBBER COLLAR FLASHING;5. SEAMLESS SPUN ALUMINUM FLASHING;6. STEEL BACK PLATE;7. HEAVY DUTY HEX NUT & LOCK WASHER.

PRO-BEL MODEL # PBE78-S:1. STAINLESS STEEL U-BAR SAFETY ANCHOR; 2. GALVANIZED STEEL PIER c/w BASE PLATE;3. SEAMLESS SPUN ALUMINUM FLASHING;4. HEAT-SHRINK RUBBER COLLAR FLASHING;5. EPOXY ANCHOR BOLTS.

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6

4

2

42

3

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56

I-BEAM

4

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2

1

5

6

87

I-BEAM

1

43

2

EPOXY ADHESIVE BOLT

WELDMENT WRAPPING I-BEAM WRAPPING CONCRETE JOIST

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CONCRETEJOIST

ROOF ANCHOR SECUREMENTS

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CAST-IN-PLACE

4

8” (2

00 m

m) M

IN.

PRO-BEL ROOFTOP SUPPORTS

ApplicationRecommended for use in new construction or retrofit applica-tions where it is necessary or desirable to conceal the anchorwhen not in use i.e. terrace, balcony or roof deck locations. Pro-Bel flip-up and recessed anchors are designed to suit all roofconditions including cast-in-place and weldment applications.

ApplicationIdeal for use in new contruction for exposed concrete bal-conies where it is desirable to directly rig a bosun’s chairover a balcony rail. If the rail cannot accommodate the loads,outrigger beams may be employed for exterior maintenanceusing a ground rigged platform. The embed anchor (con-nector) is removed and capped flush when not in use.

Pro-Bel galvanized steel pipe support complete with U-Bar safety anchor.

Pro-Bel also manufactures a complementary line of rooftop supports for pipes, satel-lite dishes, catwalks, cellular towers, antenna, guy wire securement, air conditioningunits and similar equipment. These supports can be supplied as stand alone items orcombined with U-bar safety anchors and are secured and flashed in using the samereliable methods employed for Pro-Bel anchors. For further information contact a Pro-Bel representative. 4

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I-BEAM

VAR

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PRO-BEL MODEL # PB75-HP1 PIPE SUPPORT:1. GALV. STEEL PIPE SADDLE; 2. THREADED GALV. ROD; 3. GALV. ROD DRILLED & TAPPED; 4. GALV. ANCHOR CAP; 5. TAMPERPROOF PIN; 6. SUPPORT BASE SECUREMENT BOLT; 7. GALV. STEEL SUPPORT BASE; 8. S.S. OR GALV. U-BAR SAFETY ANCHOR.

A-9

1/4”(6 mm)

Anchors are designed to a maximum fall arresting force of typi-cally 1800 lbs (8.0 kN) when wearing a body harness with asafety factor of 2 without any permanent deformation and to5000 lbs (22.24 kN) against fracture or detachment.


Anchor in terrace deck.Paver cutout concealsanchor when not inuse.

NOTE: WHEN THE ANCHOR IS COMPLETELY RECESSED BELOWTHE PAVER. THE PAVER CAN BE CORED OUT AND THE CORE CANBE USED AS A CAP.

PRO-BEL MODEL # PB96-RP2 “FLIP-UP”ROOF ANCHOR

2-1/

2” (6

4 m

m)

STEEL LOCK WASHER & HEAVY DUTY HEX NUT

PRIMED STEEL HSS REINFORCEMENT

STAINLESS STEELTHREADED ROD

EXISTINGCOMPOSITE DECK

PIVOTING STAINLESS STEELU-BAR ANCHOR

STOP LUG

STEEL BASE PLATE

METALCOVER CAP

EXISTING PAVERS

STAINLESS STEEL ANCHORSECUREMENT LUG

RECEIVER

D-CUP

CONNECTOR

RE-BARINSERT

CONCRETEBALCONY

CARPET PROTECTION

RAILING

DETENT-TYPE

CONNECTOR

NOT-IN-USEPLUG

PRO-BEL MODEL # PB97 HEAVY DUTY DETENT-TYPE CONCRETE EMBED ANCHOR

SUSPENSION LINEFOR BOSUN’S CHAIR

DESIGN CONSIDERATIONSRoof Space: Conventional (non-perma-nent) outrigger beams employing coun-terweights, when used with descent con-trolled bosun’s chair, single work cage orplatforms are normally supported to cleara low non-structural parapet wall. Con-ventional outrigger beams are typically12’-0” to 15’-0” (3658 mm to 4572 mm)long and have a reach of 3’-0” (915 mm)or less beyond the roof edge. Theyrequire sufficient space on the roof toaccommodate the inboard portion of thebeam and the tie-back.

Parapet Strength: If the parapet wall isstructurally sufficient, a parapet wallclamp may be secured to the wall for thesuspension of access equipment.

Also, a bosun’s chair can be directlysecured to a safety anchor. This is knownas direct rigging. The chair is riggeddirectly to wall or roof anchors in line withthe point of suspension, and the primarysynthetic rope suspension lines are nor-mally protected at the parapet using con-tractor supplied carpet or other anti-abra-sion protection devices.

When the parapet is not capable of sup-porting the applied loads, primary sus-pension support equipment such as out-rigger beam dollys or davits must be con-sidered. See Pro-Bel Outrigger BeamSystems or Davit Systems literature.

Parapet Height: Anchors can beinstalled in parapet walls provided wallsmeet the following criteria:

Wall is 42” (1067 mm) minimumguardrail height;

Wall has been engineered to take theapplied loads.

Structural loads: Anchors are designedto a maximum fall arresting force of typi-cally 1800 lbs (8.0 kN) when wearing abody harness with a safety factor of 2without any permanent deformation andto 5000 lbs (22.24 kN) against fracture ordetachment.

Free Design Service: The selection ofwindow cleaning equipment is a perfor-mance oriented and highly specializedfield requiring an in-depth knowledge ofRigging Methods, Safety and OSHAStandards/State Codes. Pro-Bel providesa free design service to ensure that Pro-Bel systems are properly specified.

Pro-Bel portable outrigger with beam dolly is ideal for clearing non-structural parapet.Note separate pier- type safety anchors for securing lifelines. See Pro-Bel Outrigger BeamSystems literature.

This photo shows a Pro-Bel roof anchorinstallation. Anchors are welded to struc-tural steel before a horizontal lifeline cablesystem is installed to provide fall protec-tion on this arched roof.

Pro-Bel portable aluminum ground riggeddavit arms are ideal for clearing non-struc-tural parapets or reaching out past build-ing face obstructions. See Pro-Bel DavitSystems literature.

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2.

Location of Lifeline Anchors: Thelocation of lifeline anchors relative to tie-back anchors must be such that a work-er can neither fall more than 6’-0” (1.8m), nor contact any lower level (OSHA1910.66, Subpart F and ANSI/IWCAI-14.1, section 9.2.2 (g) 2). See Layoutdata on page A-12.

A-10


ANCHOR LAYOUT PROCEDURE

1. Review the Pro-Bel System & Equipment Introduction literature (pages G-6 to G-18). This data provides an overview of thevarious equipment options used to cleanwindows or perform other suspended build-ing maintenance.

2. Identify all roof levels. Mark window loca-tions on other areas requiring access onthe architectural roof plan drawing(s).

3. Examine building section drawings to assess construction of parapet wall,mechanical room wall and roof assembly orother building elements as necessary.

4. Examine roof structural drawings for possi-ble anchorage locations.

5. Examine building elevations or other draw-ings to identify any setbacks, recesses orother unusual features.

6. Review the Design Considerations on page A-10 to assist in making a "rigging" deci-sion.

7. If it has been determined that "rigging" is suited to using anchors only, for both thesupport of primary suspension equipmentand lifelines, refer to Anchor Spacing Chartat right on page A-12.

Note: Primary suspension equipment refers toconventional, maintenance contractor suppliedequipment i.e. bosun's chair, transportable out-rigger beams, single work cage, temporaryplatform and parapet wall clamps.

ANCHOR PLACEMENT

1. After determining what areas of the build-ing face will need to be accessed for main-tenance, anchor locations can now be cho-sen.

2. Anchors are located on the roof of the building and are generally secured to anyor all of the following acceptable vertical orhorizontal elements: mechanical room curbwalls; parapet walls minimum 42" (1067mm) high; roof mounted structural ele-ments e.g. rooftop equipment structuralsupport beams or columns, and similarstructures; roof decks (to concrete slab,precast deck, structural steel, and similarstructures); finished roof top terraces.

3. Ideally locations for Pro-Bel safety anchors are in direct line with the anticipated"drops" and are suited to both bosun's chairand suspended platform. A "drop" for achair is typically a 6'-0" (1830 mm) widearea, and 20'-0" to 28'-0" (7000 mm to8535 mm) for a platform. Two anchors arerequired for bosun's chair (1 primary and 1lifeline) and 4 anchors are required for aplatform (2 primary and 2 lifeline).

4. Lifeline anchors and primary tie-back anchors for transportable outrigger beamsand parapet wall clamps should be locatedin line with the point of suspension (per-pendicular) whenever practical, but shouldnot be offset more than 10'-0" (3084 mm)measured horizontally from running at aright angle to the building face at the pointof suspension. The angle created by theoffset distance should not exceed 25º. Seeanchor spacing chart data on page A-12.

5. If a bosun's chair or similar single point suspension equipment is used with the pri-mary support lines directly attached toanchors (direct rigging), the horizontal por-tion of the descent line (that portion of thesupport from the anchor to the roof edge)should be in a plane at right angles to theface of the building at the "drop". Thisguideline will ensure that slide distance andswing action in the event of a fall will bereduced to a reasonably safe minimumthereby lessening the potential for workercollision injury, while allowing for self-recovery.

Essentially, OSHA 1910.66, Subpart F andANSI/IWCA I-14.1, section 9.2.2 (g) 2requires personal fall arrest systems berigged such that an employee can neitherfree fall more than 6'-0" (1.8 m), nor contactany lower level. Any anchor placement sce-nario should reflect this requirement.

ROOF PLAN / ANCHOR LAYOUT SHOWING TYPICAL CHAIR AND PLATFORM DROPS

TYPICAL CHAIR DROPTYPICAL PLATFORM DROP

MAIN ROOF

STAIRWELLROOF

MECHANICALROOM

Weld to Structure

Bolt Through Wall Epoxy AdhesiveBolts

Typical Anchor Layout Plan

Adhesive Roof Anchor

A-11

ANCHOR PLACEMENT (continued)

6. Locate the very first roof anchor, which should be a primary suspension or tie-backanchor. If the parapet wall is less than 42"(1067 mm) guardrail height, this anchorshould be a minimum of 6'-0" (1830 mm)distance from the parapet so that the work-er can tie off whenever the worker has tostep within 6'-0" (1830 mm) of an unguard-ed edge. If the parapet is minimum 42"(1067 mm) high, the anchor can be locatedany distance inside the parapet.

7. The second and subsequent primary sus-pension or tie-back anchors can now belocated as per item 3.

8. After primary anchors have been located, lifeline anchors can now be located relativeto the primary anchors using the anchorspacing chart data at right.

9. Anchor spacing must be adjusted, of course, to circumvent any obstruction.

Note: Pro-Bel tie-back/lifeline anchors anddirect rigging anchors are the same and areused interchangeably.

A-12

RELATIVE SPACING BETWEEN PRIMARY SUSPENSION ANCHOR AND LIFELINE ANCHOR

The anchor spacing data shown below indicates recommended spacing of fall arrestsafety anchors relative to primary suspension or tie-back anchors.

Plan View of Roof Showing Rigging In Line withAnchors

DEPTH MAXIMUM SPACING

U.S./Imperial U.S./ImperialMetric (mm) Metric (mm)

10’-0”

9’-0”

8’-0”

7’-0”

6’-0”

5’-0”

3048

2743

2438

2134

1829

1524

21’-5” 6528

19’-4”

17’-2”

5893

5232

4597

3937

3251

15’-1”

12’-11”

10’-8”

ANCHOR SPACING CHART

This narrow roof area requiresanchors on 5’-0” (1830 mm) cen-ters. See Anchor Spacing Chartbelow.

Pro-Bel roof anchors welded to beamsbefore steel deck is installed.

ANCHORSARE WITHINFALL ARREST LIFELINEZONE

WINDOW

BOSUNS CHAIR

DEP

TH (S

EE C

HAR

T BE

LOW

)

25º MAX

INDEPENDENTFALL ARRESTLIFELINE ANCHOR

LANYARD LENGTH 4’-3” (1295 mm) MIN.OUTSIDE FACE OF PARAPET WALL OR BUILDING

MAXIMUM SPACING

PRIMARY SUSPENSIONEQUIPMENT ANCHOR

PRIMARY SUSPENSION LINE(FOR DIRECT RIGGING OFBOSUN’S CHAIR OR TIE-BACKOF OUTRIGGERS FOR SINGLEMAN CAGE OR PLATFORM).

LOCATE ANCHORS IN ACCOR-DANCE WITH THE ANCHORSPACING CHART BELOW SO ASNOT TO EXCEED AN ANGLE OF25º, TO ENSURE THAT PRIMA-RY SUPPORT LIINES, TIE-BACKLINES AND LIFELINES ARERIGGED WITHIN THE 15º OFF-SET ANGLE RECOMMENDED INANSI/IWCA I-14.1.

When rigging primary lines, tie-back linesand lifelines for a bosun’s chair, singlework cage or platform, there are many sce-narios having an influence on whetherlines are anchored in line with or offsetfrom the point of suspension. Ultimately,the object is to place the anchors in a man-ner that will suit chair and platform loca-tions within the variable work zones whileensuring that the OSHA maximum free falldistance of 6’-0” (1.8 m) is not exceeded, in

the event of a worker falling.Recognizing this, Pro-Bel employ a 25O

angle placement criteria for the location ofboth primary support lines and secondarylifelines. This criteria will ensure that linesare rigged within 15O of the point of sus-pension in accordance with theANSI/IWCA I-14.1 Window CleaningSafety Standard.


15º

90º

1. Small area of roof covering is removeddown to concrete deck.

2. Holes are drilled into or through concretedeck to accommodate roof anchor bolts.

6. Close-up of anchor. Installation methodis similar for both conventional roof (mem-brane above insulation) and protectedmembrane roof (membrane below insulation).

4. Watertight integrity of roof is restoredusing spun aluminum flashing and newroof covering (roof patch). Photo showsprotected membrane roof.

5. Top of spun aluminum flashing is sealedto steel anchor using a conformable mas-tic tape and heat-shrink rubber collarflashing.

3. Anchor is installed using either bolt-through or chemical adhesive securementdepending on access from below.

Pro-Bel PBE Series roof anchors installedin single ply roof.

A-13

EXAMPLE INSTALLATION _ RETROFIT ROOF ANCHORRELATED DATAFor general data relating to all Pro-Belproducts and services e.g. codes, instal-lation, warranty, etc., refer to the Pro-BelSystem & Equipment Introduction litera-ture (pages G-2 to G-32). For productdata relating to other fall protection sys-tems and primary suspension equip-ment, see other Pro-Bel literature.

OTHER USESGenerally, Pro-Bel window cleaning/sus-pended maintenance anchor systems areeconomical or practical for all new orretrofit buildings 3 storeys and higherwhere windows or building facades areaccessed from the roof.

In addition to window cleaning applica-tions, Pro-Bel safety anchor systems arerecommended for work such as:

• construction, restoration, cleaning, sandblasting, caulking, or pointing;

• fall protection for ladder work using full body harness and lanyard; and

• interior or exterior industrial applica-tions wherever maintenance personnelare exposed to falls from elevation.

Pro-Bel safety anchor systems are com-patible with all types of suspended main-tenance equipment and can be usedinterchangeably for either tying off sus-pended equipment or fall protection life-lines.

BUILDING OWNER ASSURANCEThere is a shared responsibility betweenthe building owner/employer and the win-dow cleaning/suspended maintenancecontractor. OSHA and ANSI/IWCA I-14.1acknowledges that the building owner/employer is the controlling employer andmust assure the contractor that the sys-tem has been installed in accordancewith engineered drawings, test data(when required), and equipment specifi-cations. The building owner/employershall provide written assurance that theinstallation has been annually inspectedand maintained to ensure that all equip-ment is safe and operating as required.

Refer to Pro-Bel “Digest for BuildingOwners, Property Managers, and GeneralContractors” literature for more detailedinformation.

AVAILABILITY & COSTPro-Bel window cleaning/suspendedmaintenance safety systems are distrib-uted throughout the United States,Canada and internationally.

Budget pricing is provided on a project-to-project basis for both materials andinstallation, or materials only. See “Tech-nical Consultation” at right.

FREE DESIGN SERVICEThe selection of window cleaningequipment is a performance orientedand highly specialized area. Also theissues of fall protection and fall arrestare serious concerns with OSHAinspection authorities. Interpreting themyriad of OSHA standards, includingthe separate requirements of variousstates, and proposed changes, is adaunting task at best.

Each building is different, requiring anindividual technical approach and atime commitment beyond the scope ofmost professional offices. Even with ahigh degree of knowledge and thebest of intentions, the planningprocess can go askew. It is for thesereasons that Pro-Bel provides archi-tects and engineers with a FREEDESIGN SERVICE, and to ensure thatPro-Bel Window Cleaning/SuspendedMaintenance Systems are properlyspecified and installed.

TECHNICAL CONSULTATIONPro-Bel Enterprises Limited provides acomplete technical consultation service,available to architects, consultants, engi-neers, contractors, and building owners.Without obligation, Pro-Bel will provideinterested parties with a proposed win-dow cleaning/suspended maintenancedesign concept to OSHA requirements,including anchor and equipment loca-tions, securement, roofing details andspecifications.

Simply provide the following information:

• roof plans (architectural & structural);• building elevations;• typical floor plans• section drawings showing parapet walls

or roof edge condition and mechanicalroom walls; and

• any other drawings pertinent to window cleaning/suspended maintenance re-quirements.

Pro-Bel will review drawings and provideone or more concepts as required withrespect to equipment, tie-back methodsand similar options.

In addition, Pro-Bel Enterprises Limitedwill provide budget pricing for windowcleaning/suspended maintenance sys-tems contingent upon design acceptancebetween Pro-Bel and architect/owner forthe proposed project.

A-14


PRO-BEL PB-00 AND PB-01 STAINLESS STEEL BREAKAWAY ANCHORS FOR STEEL ROOFS(Safety Anchor and/or Horizontal Lifeline Support)

OPTIONAL POST HEADSINCLUDE ANCHOR EYE,STANDARD RUNNER,AND REVERSIBLE RUNNER

Application (Breakaway Concept)In a fall arrest situation, a break-away mechanism is activated at apre-determined point e.g. 617 lbs(280 kg). A built-in energy absorb-ing device ensures the anchoragewill hold in case of a fall. Conceptsubstantially reduces load appliedto securement screws.

NOTE: NO CUTTING OR WATERPROOFINGREQUIRED

PB-00

PB-01

PB-00UNIVERSALSOLUTIONFOR NEWSTEELROOFS, NOMATTER THEFRAMEWORK

10” (

250

mm

)

8-3/

8” (2

10 m

m)

PB-01SAFEST SOLUTION FOROLD STEEL ROOFSFIXED TO METALLICFRAMEWORK

SPECIFICATION

SPEC NOTE: This basic guide specification(Section 11010 - Window Washing Systems) isdevoted exclusively to safety and tie-backanchors and is written in accordance with theCSI/CSC Three Part Section Format. It must beadapted to suit the requirements of individual pro-jects. If other equipment such as outriggerbeams, davits, monorails, horizontal cable life-lines or other equipment is required, refer toappropriate Pro-Bel literature and incorporatematerials and/or other clauses as required.Square brackets [ ] indicate choice, alternatives,data required or need for the specifier to make adecision.

PART 1 - GENERAL

General Requirements

Comply with the conditions of the Contract andDivision 1 - General Requirements.

Section Includes

Work of this section includes the design, supplyand installation of window cleaning/suspendedmaintenance equipment.

Related Sections

Unloading and hoisting of equipment to roof Section [01500]

Cast-in-place concrete, including installation ofembedded items Section [03300]Precast concrete Section [03400]Structural Steel Section [05120]Open Web Steel Joists Section [05210]Metal Deck Section [05310]Catwalks Section [05516]Roofing Section [07500]Flashing Section [07600]Sealants Section [07900]Rigging access doors in walls Section [08111]Guiding tracks or mullions on exterior of building

Section [08800]Hot & Cold water supply, faucets and drain at[every] roof level Section [15400]Three phase 208 volts 60 Hertz service at [every ] rooflevel Section [16050]

SPEC NOTE: Re 1.03,O. Specify independentprotected main line power and weatherproofHubbell twist-lock 208 volts, 3 phase, 60Hertz, 30 amperes receptacle (HBL2620SW,NEMA No. L6-30R for rental powered plat-forms). Power to be located no more than100'-0" (30 m) from window cleaning/suspend-ed maintenance equipment location. Outlets toexperience no more than 3% voltage dropunder full loading. Pro-Bel wall or roof anchorsmay be employed for strain relief. Contact Pro-Bel for requirements.

Weatherproof power supply outlets with strainrelief anchors Section [16132]

References

AISC S342L-1993, with Supplement No.1 "Loadand Resistance Factor Design Specification forStructural Steel Buildings".

AISI SG-971-1996, with 2000 Supplement"Specification for Design of Cold-Formed SteelStructural Members”.

Aluminum Association AA ADM-1-AluminumDesign Manual, 2000 and AWS D1.2-97 Struc-tural Welding Code - Aluminum.

AWS D1.1-2000 Structural Welding Code - Steel.

ANSI/IWCA I-14.1-2001 Window Cleaning SafetyStandard (International Window Cleaning Associ-ation).

Design Requirements

Design window cleaning/suspended mainte-nance system to suit building and in accordancewith plans, specifications, standards, and regula-tions/codes contained in section 1.04 and 1.08.

Locate safety and tie-back anchors to suit sus-pension equipment which will be used on thebuilding with respect to items such as rigging,spacing, roof edge condition and similar items.

Design all anchor components to provide ade-quate attachment to the building and suited tocurrent window cleaning/suspended mainte-nance practices. Ensure compatibility with indus-try standard equipment.

Ensure all anchor components conform to prop-er engineering principles and have beendesigned by a Professional Engineer qualified inthe design of window cleaning/suspended main-tenance equipment, its application and safetyrequirements.

Design system fall arrest safety anchors to com-ply with the following structural requirements:

1. Fall arrest safety anchors are designed to atypical maximum fall arresting force of 1800 lbs(8.0 kN) when wearing a body harness with a fac-tor of safety of 2 without any permanent deforma-tion and to 5000 lbs (22.2 kN) against fracture ordetachment.

SPEC NOTE: For California State, substitute5400 lbs (24 kN) in lieu of 5000 lbs. (22.2 kN).

Shop Drawings and Engineering Certification

Submit shop drawings showing complete layoutand configuration of complete window cleaning/suspended maintenance system, including allcomponents and accessories. Clearly indicatedesign and fabrication details, window "drops",hardware, and installation details.

Shop drawings to include installation and rigginginstructions and all necessary Restrictive andNon-Restrictive Working Usage Notes andGeneral Safety Notes.

Shop drawings to be reviewed by a professionalengineer, and upon request, complete with testreports.

Qualifications

Manufacturer: Work of this Section to be execut-ed by manufacturer specializing in the design,fabrication and installation of window cleaning/suspended maintenance systems having a mini-mum of 5 years documented experience.

Loading and safety assurance: Work of thisSection to meet the requirements of governingcodes and jurisdiction and to comply with proper-ly engineered loading and safety criteria for theintended use.

Insurance: Manufacturer to carry specific liabilityinsurance (products and completed operations) inthe amount of $2,000,000.00 to protect againstproduct/system failure.

Welding to be executed by certified welders inaccordance with AWS requirements.

Regulatory Requirements

SPEC NOTE: Re 1.08,A. Specify for all Statesother than New York and California.

Comply with the following OSHA regulations:1. 1910, Subpart D (Walking and WorkingSurfaces).2. Appendix C to 1910 Subpart F (Personal FallArrest Systems).3. "OSHA Ruling on Window Cleaning byBosun's Chair" Memorandum to RegionalAdministrators from P. K. Clark, Director,Directorate of Compliance Programs.4. 1910.66, Subpart F (Powered Platforms).

SPEC NOTE: Re1.08.B and 1.08.C. Specify forNew York State or California only as applicable.

Comply with the following New York State regula-tions:1. Department of Labor Advisory Standard 101- Construction, Operation and Maintenance ofSuspended Scaffolds Used for Window Cleaningand Light Maintenance.2. Advisory Standard 111 - Hoisting MachinesUsed for Suspended Scaffolds.3. Department of Labor Industrial Code Rule 21- Protection of Persons Employed at WindowCleaning - Structural Requirements, Equipmentand Procedures.

Comply with the following California State regula-tion:1. Code of Regulations, Title 8 - IndustrialRelations, Article 5 (Window Cleaning), Article 6(Powered Platforms for Exterior BuildingMaintenance), and Appendix C to Article 6(Personal Fall Arrest System).

Maintenance Data

Submit 1 copy of system Equipment Manual &Inspection Log Book, with "Initial Inspection -Certification for Use" and "Inspection Sign-Off"forms completed.

Submit 2 copies of a reduced plastic laminatedas-built shop drawing showing equipment loca-tions and details. This drawing is to be postednear exits onto the roof.

1.01

A.

1.02

A.

1.03

A.

B.

C.D.E.F.G.H.I.J.K.L.

M.

N.

O.

1.04

A.

B.

C.

D.

E.

1.05

A.

B.

C.

D.

E.

1.06

A.

B.

C.

1.07

A.

B.

C.

D.

1.08

A.

B.

C.

1.09

A.

B.

A-15

PART 2 - PRODUCTS

Manufacturer

This specification is based on systems currentlybeing manufactured by PRO-BEL ENTERPRISESLTD. Toll free: 1-800-461-0575. Telephone: 905-427-0616, Fax: 905-427-2545, [email protected].

Other manufactured products meeting this speci-fication may be substituted provided that manu-facturers show proof of product insurance.Equipment details to be approved by the architectand/or consultant. Companies, such as miscella-neous metal fabricators, who are not normallyengaged in the design and manufacture of win-dow cleaning/suspended maintenance equipmentare not permitted to bid.

Equipment

SPEC NOTE: List type and quantity as required.

[ ]

[ ]

[ ]

Materials

SPEC NOTE: Delete items not required.

Safety U-bars: [Type 304 stainless steel with yieldstrength of 35 Ksi (240 MPa)] [mild steel, Type300W with yield strength of 44 Ksi (300 MPa), hot-dip galvanized to ASTM A123/A 123M-2000]. U-bar to be not less than 3/4" (19 mm) diametermaterial with 1-1/2" (38 mm) eye opening.

Securement bolts: mild steel, Type 300W withyield strength of 44 Ksi (300 MPa), hot-dip galva-nized to ASTM A123/A 123M-2000.

Hollow steel section (HSS) piers: mild steel, Type300W with yield strength of 50 Ksi (350 MPa).Wall thickness to suit application, [hot dipped gal-vanized to ASTM A123/A 123M-2000] [with Pro-Bel Protex 3/16” (2.4 mm) thickness, black col-ored, two-component TPU polyurethane/polyureacoating system].

SPEC NOTE: Pro-Bel Protex is a superior substi-tute to galvanizing and provides exceptionalimpact and abrasion resistance.

Base plate and all other sections: [galvanized][Pro-Bel Protex coated] mild steel as above withyield strength of 44 Ksi (300 MPa). Thickness andsecurement to suit application.

SPEC NOTE: Re 2.03,E. Specify aluminumflashing for BUR or modified bitumen roofs only(membrane above or below insulation). For sin-gle ply roofs, flashing to be in accordance withmembrane manufacturer's instructions. Specifyconformable mastic tape and heat-shrink rubbercollar flashing for EPB Series roof anchors (BURor modified bitumen roofs) or s.s. cap for PBseries roof anchors (any type roof).

Seamless spun aluminum flashing (for steel pieranchors): Type 6061-T6 alloy to ASTM B221-2000 with deck flange flashed in to NRCA orCRCA recommendations. Seal top of aluminumflashing with [conformable mastic tape and torchapplied heat-shrink rubber collar flashing][detachable watertight stainless steel cap].

Miscellaneous bolts, nuts and washers: mildsteel, Type 300W with yield strength of 44 Ksi(300 MPa), hot-dip galvanized to ASTM A123/A123M-2000 or Type 304 stainless steel with yieldstrength of 35 Ksi (240 MPa).

Fabrication

General:1. Fabricate work true to dimension, square,plumb, level and free from distortion or defectsdetrimental to appearance and performance.2. Grind off surplus welding material and ensureexposed internal corners have smooth lines.

PART 3 - EXECUTIONExamination

Examine surfaces and areas upon which thework of this Section depends. Report to theContractor in writing, defects of work prepared byother trades and other unsatisfactory site condi-tions which would cause defective installation ofproducts, or cause latent defects in workmanshipand function.

Verify site dimensions.

Commencement of work will imply acceptance ofprepared work.

Installation

Install equipment in accordance with approvedshop drawings and manufacturer's recommenda-tions.

Co-ordinate installation with work of relatedtrades.

Install all work true, level, tightly fitted and flushwith adjacent surfaces as required.

Deform threads of tail end of anchor studs afternuts have been tightened to prevent accidentalremoval or vandalism.

SPEC NOTE: Re 3.02,E. Specify for furnish onlyprojects if required.

Manufacturer to assist and/or supervise installa-tion of window cleaning/suspended maintenanceequipment installed by others.

Structural steel to receive safety anchors to haveadequate bearing surface as indicated on shopdrawings and/or to ensure 100% weld.

Final Adjusting and Inspection

Adjust and leave equipment in proper workingorder.

Complete "Initial Inspection - Certification forUse" form included in Equipment Manual &Inspection Log Book.

Testing

All anchors relying upon chemical adhesive fas-teners to be 100% tested on site using load celltest apparatus in accordance with manufacturer'srecommendations.

2.01

A.

B.

2.02

A.

B.

C.

2.03

A.

B.

C.

D.

E.

]

F.

2.04

A.

3.01

A.

B.

C.

3.02

A.

B.

C.

D.

E.

F.

3.03

A.

B.

3.04

A.

Prin

ted

in C

anad

a

SERVING U.S.A. AND CANADA, COAST TO COAST.

PRO-BEL ENTERPRISES LIMITED

Head Office765 Westney Road S,Ajax, ON CA L1S 6W1[ t ] 905.427.0616[ f t ] 800.461.0575[ f ] 905.427.2545[e] [email protected]

Western Office#103-350, East Kent Ave SVancouver, BC V5X 4N6[ t ] 604.687.1301[ f ] 604.687.1306[e] [email protected]

PRO-GRESS • PRO-BELwww.pro-bel.ca

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