Green Building Rating SystemFor New Construction & Major

Renovation

Presentation By

Osama Khadra

Objectives

Definition of a Green Buildings

Building Energy and Other Resources

LEED Rating System Preview

Case Projects see

Limitation of Building Impact on Environment

and Resources Mainly Water

Methods of Energy Savings

What is a green buildings?

A buildings Designed, Constructed and operated with an eye to how they interact with our planet’s ecosystem By:

1- Reserving and using sustainable energy.

2-Maintain environmental recourses mainly water resources.

3- Lower the impact of urbanization on the environment.

4-Keeping a comfort zones inside building with sufficient indoor air quality and sunlight.

Why thinking

about Green

Buildings?

Green Building & Owner

Generally Green Building

may have a higher initial

coast than conventional

buildings

Although the following can

be an assets that

encourages the building

owners:

Green building expanding…

Saudi Green BuildingCouncil established in 2009

(SGBC) is a Non-Profit-Organization and a chapter of King Saud University for scientific committees; established in 2009, under the Saudi Society for Agricultural Sciences decree number 6031 dated 28/3/2010 funded by an interest group of professionals and academics in the fields of engineering construction and environmental sciences.

SGBC accredited by the World Green Building Council exclusively in Saudi Arabia. SGBC organized and participated in several national, international, workshops, conferences and activities related to Green Buildings industry.

SGBC's goal is to promote and facilitate awareness of sustainable building practices and knowledge. In addition preserve our urban identity, environment through creativity and innovation for the Kingdom of Saudi Arabia.

http://gbc-saudi.org/new/page/index/1

Emirates GBC

Goal :

advancing green building principles for protecting the environment and ensuring sustainability in the United Arab Emirates.

Main Activities :

-Green Building and related environmental protection studies & consultations.

-Develop and issue environmental standards for Green Buildings.

-Develop environmental rating systems for Green Buildings and issue quality certification for classifying Green Buildings.

-Conduct Green Building professional short courses and training programmers.

-Organize and manage seminars, workshops, conferences and exhibitions related to Green Buildings.

Is there an Existing Green Buildings … ?

Projects CasesGoldman Sachs' 30 Hudson Street

Location: Jersey City, NJ

Building type(s):Commercial office

New construction

1,560,000 sq. feet (145,000 sq. meters)

Project scope: 42-story building

Urban setting

Completed April 2004

Rating: U.S. Green Building Council

LEED-NC, v.2/v.2.1--Level: Certified

Project SavingsGoldman Sachs' 30 Hudson Street

The project's light-colored pavement reduces its contribution to the urban heat-island effect, and its minimal exterior lighting reduces light pollution.

A storm water collection and retention system provides site irrigation and cooling-tower makeup water. Combined with low-flow fixtures, these strategies save about 4.2 million gallons of water per year.

More than 60% of all wood used for the project, and 100% of the interior wood, was certified to Forest Stewardship Council standards. All of the regularly occupied spaces have access to daylight and views to the outdoors. The building also features educational signage that explains the building's green attributes.

Projects Cases1400 Fifth Avenue Residential Building

Location: New York, NY

Building type(s): Commercial office, Restaurant, Retail, Multi-unit residential, Assembly

New construction

225,000 sq. feet (20,900 sq. meters)

Project scope: 8-story building

Urban setting

Anticipated completion date: March 2005

Project Savings 1400 Fifth Avenue Residential Building

Environmental Aspects

a ground-source heat pump makes a significant contribution to minimizing the consumption of fossil fuels

Ground source heat pumps use a buried ground loop which transfers heat from the ground into a building to provide space heating and, in some cases, to pre-heat domestic hot water. As well as ground source heat pumps, air source and water source heat pumps are also available.

Project Savings 1400 Fifth Avenue Residential Building

The building's close proximity to public transportation,

the presence of bicycle storage areas, the networked living units complete with (low-cost) broadband access, and the fully equipped onsite business center limit environmental impacts related to transportation.

Both structural components, such as steel joists, and finished surfaces, such as carpeting, include recycled content where feasible.

FSC-(Forest Stewards Council) certified cabinets and bamboo flooring reduce the project's damage to forests.

high-efficiency air filters assist in maintaining healthy indoor spaces.

Variable-frequency drives on pumps,,

day lighting, and efficient electric lighting reduce electricity consumption.

Low-flow toilets and faucets conserve water, and a

parking area "paved" with a porous, sod-covered matrix allows storm water to infiltrate the soil.

How to Officially State a Building to Be Recognized As a Green Building?

In 1999 U.S Green Building

Council introduced the LEED rating

system

(Leadership in Energy and

Environmental Design)

What was LEED Meant For?

It is a internationally accepted bench mark

For the : - Design

- Construction

-Operation

Of a high performance green building.

LEED Certificate is Possible

Leed Certificate process is not easy process on the other hand The LEED Rating System is flexible, not a ‘one-sized fits all’ approach

There are a few prerequisites all projects must meet in the Rating System, and beyond that project teams can choose which credits to pursue based on their environmental and performance goals as long as they meet the minimum threshold for certification

It is not only about design.

It needs cooperative and coordinated work between all project team parties including:

- Owner.

- Design Team.

- Construction Team , Project & Site management.

- Commissioning Authority if provided.

- Operation, Maintenance & Measurement team.

LEED Points & Level:

Leed is a point based rating system of a total

maximum 69 points.

LEEDS has 4 levels of Certifications:

- Platinum : 52-69 Points

- Gold : 39-51 Points

- Silver : 33-38 Points

- Certified : 26-32 Points

LEED2.2 Has Six Rating Key Areas:

Sustainable Site Development.

Water Efficiency

Energy & Atmosphere

Materials & Resources

Indoor Environmental Quality

Innovation & Design Process

LEEDS Points are distributed along the 6 rating areas as follows:

Sustainable Site Development :

14 Points Water Savings & Efficiency:

5 Points Energy efficiency:

17 Points Materials selection:

13 Points Indoor Environmental Quality

15 Points Innovation & Design Process:

5 Points

LEEDS Credit points

LEEDS Credit points is related to all Engineering fields:

- Architectural

- Civil

- Mechanical

- Electrical

- Energy & Sustainable Energy

- Industrial & Planning

Sustainable Sites (SS)14 Possible Points

Credit detail Possible PointsPrereq 1 Construction Activity Pollution Prevention Required

Credit 1 Site Selection 1

Credit 2 Development Density & Community Connectivity 1

Credit 3 Brownfield Redevelopment 1

Credit 4.1 Alternative Transportation, Public Transportation Access 1

Credit 4.2 Alternative Transportation, Bicycle Storage & Changing Rooms 1

Credit 4.3 Alternative Transportation, Low Emitting & Fuel Efficient Vehicles 1

Credit 4.4 Alternative Transportation, Parking Capacity 1

Credit 5.1 Site Development, Protect or Restore Habitat 1

Credit 5.2 Site Development, Maximize Open Space 1

Credit 6.1 Stormwater Design, Quantity Control 1

Credit 6.2 Stormwater Design, Quality Control 1

Credit 7.1 Heat Island Effect, Non-Roof 1

Credit 7.2 Heat Island Effect, Roof 1

Credit 8 Light Pollution Reduction 1

Water Efficiency (WE)5 Possible Points

Credit detail Possible Points

Credit 1.1 Water Efficient Landscaping, 1

Reduce by 50%

Credit 1.2 Water Efficient Landscaping, 1

No Potable Use or No Irrigation

Credit 2 Innovative Wastewater Technologies 1

Credit 3.1 Water Use Reduction, 1

20% Reduction

Credit 3.2 Water Use Reduction, 1

30% Reduction

Energy & Atmosphere (EA)17 Possible Points

Prereq 1 Fundamental Commissioning of the Building Required

Energy Systems

Prereq 2 Minimum Energy Performance Required

Prereq 3 Fundamental Refrigerant Management Required

Credit 1 Optimize Energy Performance 1–10

Credit 2 On-Site Renewable Energy 1–3

Credit 3 Enhanced Commissioning 1

Credit 4 Enhanced Refrigerant Management 1

Credit 5 Measurement & Verification 1

Credit 6 Green Power 1

Materials & Resources (MR) 13 Possible Points

Prereq 1 Storage & Collection of Recyclables Required

Credit 1.1 Building Reuse,

Maintain 75% of Existing Walls, Floors & Roof 1

Credit 1.2 Building Reuse,

Maintain 95% of Existing Walls, Floors & Roof 1

Credit 1.3 Building Reuse,

Maintain 50% of Interior Non-Structural Elements 1

Credit 2.1 Construction Waste Management,

Divert 50% from Disposal 1

Credit 2.2 Construction Waste Management,

Divert 75% from Disposal 1

Credit 3.1 Materials Reuse, 5% 1

Credit 3.2 Materials Reuse, 10% 1

Credit 4.1 Recycled Content,

10% (post-consumer + 1/2 pre-consumer) 1

Credit 4.2 Recycled Content,

20% (post-consumer + 1/2 pre-consumer) 1

Credit 5.1 Regional Materials,

10% Extracted, Processed & Manufactured Regionally 1

Credit 5.2 Regional Materials,

20% Extracted, Processed & Manufactured Regionally 1

Credit 6 Rapidly Renewable Materials 1

Credit 7 Certified Wood 1

Indoor Environmental Quality (EQ) 15 Possible Points

Prereq 1 Minimum IAQ Performance Required

Prereq 2 Environmental Tobacco Smoke (ETS) Control Required

Credit 1 Outdoor Air Delivery Monitoring 1

Credit 2 Increased Ventilation 1

Credit 3.1 Construction IAQ Management Plan, During Construction 1

Credit 3.2 Construction IAQ Management Plan, Before Occupancy 1

Credit 4.1 Low-Emitting Materials, Adhesives & Sealants 1

Credit 4.2 Low-Emitting Materials, Paints & Coatings 1

Credit 4.3 Low-Emitting Materials, Carpet Systems 1

Credit 4.4 Low-Emitting Materials, Composite Wood & Agrifiber Products 1

Credit 5 Indoor Chemical & Pollutant Source Control 1

Credit 6.1 Controllability of Systems, Lighting 1

Credit 6.2 Controllability of Systems, Thermal Comfort 1

Credit 7.1 Thermal Comfort, Design 1

Credit 7.2 Thermal Comfort, Verification 1

Credit 8.1 Daylight & Views, Daylight 75% of Spaces 1

Credit 8.2 Daylight & Views, Views for 90% of Spaces 1

Innovation & Design Process (ID) 5 Possible Points

Credit 1.1 Innovation in Design 1

Credit 1.2 Innovation in Design 1

Credit 1.3 Innovation in Design 1

Credit 1.4 Innovation in Design 1

Credit 2 LEED Accredited Professional 1

Sustainable Sites (SS)Prereq 1 Construction Activity Pollution Prevention (Required)

(Related to Project Planning &Management)

- Intent:

controlling soil erosion

waterway sedimentation

airborne dust generation

REQUIRMENTS:

Satisfy the above intents by Erosion and Sedimentation Control (ESC) Plan for all construction activities associated with the project .

Plans should follow the Requirements of the U.S. Environmental Protection Agency (EPA).

Sustainable SitesCredit 6.1 (1 Point)Stormwater Design: Quality Control

Intent:

Limit disruption of natural water hydrology by :

reducing impervious cover,

increasing on-site infiltration,

reducing or eliminating pollution from

stormwater runoff,

eliminating contaminants.

Sustainable SitesCredit 6.1 (1 Point)Storm water Design: Quality Control

Potential Technologies & Strategies

Design the project site to maintain natural storm

water flows by promoting infiltration.

Specify vegetated roofs, pervious paving, and other

measures to minimize impervious surfaces.

Reuse storm water volumes generated for non-

potable uses such as landscape irrigation, toilet and

urinal flushing and custodial uses.

Rain Garden Techniques

Sustainable SitesCredit 6.2 (1 Point)Storm water Design: Quality Control

Intent:

Limit disruption and pollution of natural water flows

by managing storm water runoff.

Requirements

Implement a storm water management plan that

reduces impervious cover, promotes infiltration, and

captures and treats the storm water runoff from

90% of the average annual rainfall using acceptable

best management practices (BMPs).

Energy & AtmosphereEA Prerequisite 1: Fundamental Commissioning of the Building Energy Systems System (Required)

Definition: Quality assurance-based process for

- Achieving

- Verifying

- Documenting

That the building systems & controls meets the

defined objectives and criteria of the owners without conflicting buildings standards .

Energy & AtmosphereEA Prerequisite 1: Fundamental Commissioning of the Building Energy Systems System (Required)

Commissioning Outputs:

- Predictive Maintenance Plans

- Operating Manuals

- Training Procedures

- Formalizes review and integration of all

expectations during planning, design,

construction and occupancy phases

Energy & AtmosphereEA Prerequisite 1: Fundamental Commissioning of the Building Energy Systems System (Required)

Commissioning Benefits:

- Reduced energy use.

- Lower operating costs.

- Reduced contractor callbacks.

- Better building documentation.

- Improved occupant productivity.

- Verifies that the systems perform in accordance with the owner’s project requirements

Energy & AtmosphereEA Prerequisite 1: Fundamental Commissioning of the Building Energy Systems System (Required)

Right Planed Commissioning Brings Money for

Owners:

Organizations that research commissioning claim that:

$4 over the first 5 years of

occupancy result of every $1

invested in commissioning.

Energy & AtmosphereEA Prerequisite 1: Fundamental Commissioning of the Building Energy Systems System (Required)

Related to Commissioning Leeds Required the following:

1- Individual Commissioning Authority (CxA) to lead review and oversee the completion of the commissioning Process

2- The Owner shall document the Owner’s Project Requirements (OPR).

The design team shall develop the Basis of Design (BOD).

The CxA shall review these documents for clarity and completeness.

The Owner and design team shall be responsible for updates to their respective documents.

Energy & AtmosphereEA Prerequisite 1: Fundamental Commissioning of the Building Energy Systems System (Required)

3- Complete a Summary Commissioning Report

4- Commissioning process activities shall be completed for the following energy-related systems, at a minimum:

- Heating, ventilating, air conditioning, and refrigeration (HVAC&R) systems (mechanical and passive) and associated controls

- Lighting and day lighting controls

- Domestic hot water systems

- Renewable energy systems (wind, solar etc.)

Energy & AtmosphereEA Prerequisite 2: Minimum Energy Performance (Required)

Design the building project to comply with both :

-The mandatory provisions (Sections 5.4, 6.4, 7.4, 8.4, 9.4 and 10.4) of ASHRAE/IESNA Standard 90.1-2004 (without amendments); and

-The prescriptive requirements (Sections 5.5, 6.5, 7.5 and 9.5) or performance requirements (Section 11) of ASHRAE/IESNA Standard 90.1-2004 (without amendments).

LEEDS for new construction projects registered after June .26.2007 must exceed the minimum energy performance requirements of ASHRAE/IESNA Standard 90.1-2004

Potential Strategies:

Design the building envelope, HVAC, lighting, and other systems to maximize energy performance. The ASHRAE 90.1-2004 User’s Manual contains worksheets that can be used to document compliance with this prerequisite

Section 5,6,7,8,9,10,11 in ASHRAE Standards 90.1-2004 Relation with LEEDS

- Section 5: handles the Building Envelope

Including :Roofs ,Walls ,Floors ,Slabs ,Doors ,Vertical ,Glazing &Skylights …

- Section 6: handles HVAC Equipment and Systems.

Including : Cooling Equipment Efficiencies ,Supply Fans ,Ventilation Control &Ducts…

- Section 7 Handles Service Water Heating.

Including : Equipment Efficiencies ,Pipe Insulation….

-Section 8 : Power.

-Section 9 :Lighting.

Including but not limited to : Day lighting, Interior Electric& Lighting Controls.

- Section 10 : Related to other equipments than the above stated.

- Section 11 : Energy Coast Budget Method.

ANSI/ASHRAE/IESNA Standard 90.1-2004, Energy Standard for Buildings Except Low-Rise Residential Buildings,

provides minimum requirements for the energy-efficient design of buildings except low-rise residential buildings.

The guidance provided the appendix should be beneficial to HVAC designers who are trying to achieve the required points for either a Silver or Gold Leadership in Energy and Environment Design (LEED) certification of a facility,.

For designers who are participating in a LEED-certification design, the standard’s energy cost budget method was produced in collaboration with representatives of the U.S. Green Building Council.

Energy & AtmosphereEA Prerequisite 3: Fundamental Refrigerant Management (Required)

Intent : Reduce ozone depletion

Requirements

- Zero use of CFC(CloroFluoroCarbon)-based refrigerants in new base building HVAC&R systems.

- When reusing existing base building HVAC equipment, complete a comprehensive CFC phase-out conversion prior to project completion.

Potential Technologies & Strategies

Select HVAC equipment charged with Ozone Friendly Refrigerants such as R134A or R407…..

Energy & Atmosphere EA Credit 1: Optimize Energy Performance (1–10 Points)

Two (2) points mandatory for all LEED for New Construction

projects registered after June 26, 2007

Intent

Achieve increasing levels of energy performance above the

baseline in the prerequisite standard to reduce environmental

and economic impacts associated with excessive energy use.

Energy & Atmosphere EA Credit 1: Optimize Energy Performance (1–10 Points)

3 compliance path options

OPTION 1 — WHOLE BUILDING ENERGY SIMULATION (1–10 Points) Demonstrate a percentage improvement in the proposed building performance rating compared to the baseline building performance rating per ASHRAE/IESNA Standard 90.1-2004 by a whole building project simulation

using the Building Performance Rating Method in Appendix G of the Standard. The minimum energy cost savings percentage for each point threshold is as follows:

New Buildings Existing Building Renovations Points

10.5% 3.5% 1

14% 7% 2

17.5% 10.5% 3

21% 14% 4

24.5% 17.5% 5

28% 21% 6

31.5% 24.5% 7

35% 28% 8

38.5% 31.5% 9

42% 35% 10

Energy saving Goals

These charts demonstrate that cooling and lighting energy predominates in Miami; thus the goals and strategies relating to cooling and lighting should receive the highest priority. Conversely, in Duluth the goals and strategies relating to heating and lighting should receive the highest priority.

Energy Optimization methods Hydro is already using …..

Heat Pipe

Energy Optimization methods Hydro is already using …..

Heat

Recovery

Wheel

Thermal Energy Storage…

Thermal Energy Storage…

Energy & Atmosphere EA Credit 2: On Site Renewable Energy Performance (1–3 Points)

Intent:

Reduce environmental and economic impacts associated with fossil fuel energy use.

Requirements:

% Renewable Energy Points

2.5% 1

7.5% 2

12.5% 3

%Renewable Energy = Energy by renewable systems .

Annual Building Energy Consumed

Types of renewable energies: Solar, Wind, Geothermal…..

Lakes Park Office Complex

To reduce heat gain from Florida’s harsh sun, there are no windows on the east and west sides of the office building.

Windows on the south side of the building are shaded by a roof overhang.

The extensive use of insulated, double-pane, impact-resistant windows on the north side brings in natural light.

The project uses day lighting

combined with daylight

sensors that automatically

adjust when artificial lighting

is not needed.

Fluorescent lights

supplement the natural

lighting and gradually

brighten when clouds block

the sun.

Lakes Park Office Complex

While moisture can create problems for buildings Florida, which can sometimes receive an average of 54 inches of rainfall in a year, gutters and downspouts channel the rain from the roof into a 28,000-gallon underground cistern.

Filters remove debris from the stored rainwater. The collected water is used to flush the low-flow toilets and irrigate the drought-tolerant landscaping.

Lakes Park Office Complex

Instead of traditionally

dumping the heat to the

outside air, a more

efficient geothermal air-

conditioning system is

used that pumps cool

groundwater through a

heat exchanger to cool

the building

Lakes Park Office Complex

The project also features a small-scale photovoltaic sys-tem that converts sunlight striking the roof into electricity.

Nontoxic paints, floorings, composite woods, adhesives, sealants, and other materials were chosen to promote a healthier indoor air quality.

The buildings’ exterior walls, made from pre cast panels of lightweight autoclaved aerated concrete, are full of air pockets that provide better insulation. The buildings’ insulated rating is more than double what is used in standard construction.

Lakes Park Office Complex

LEEDS Certification Procedure:

Project Registration

Application

Reviews

Process

Fees

Certification Award

Appeals

Registration:

Registering the project is by

- Submitting on line registration form

- Or by a mailing a PDF registration form to

USGBC (not applicable for projects

registered after Nov. 2005)

Application:

To earn LEED certification, a project must satisfy the following:

-All prerequisites

-minimum number of points outlined in the LEED Rating System

All applications for LEED certification must be documented in English with U.S. customary units of measurement (not metric).

LEED Letter Templates ,drawings,calculations and additional submittals for each prerequisite and credit to be Delivered with the application.

Reviews & Process

The LEED Letter Templates and additional submittals for each prerequisite and credit are reviewed for compliance

Within 25 business days of administrative approval, the USGBC issues a Preliminary LEED Review document noting credit achievement anticipated, pending, and denied

project team has 25 business days from the receipt of the Preliminary Review to provide corrections and/or additional supporting documents (e.g. calculations, cut sheets, and other backup)

Review of the application within 15 business days of receiving the re-submittal and notifies the project contact of certification status

Review Fees

Certification Award

Final Leeds Review Delivery ….. 25 days To accept appealing

If project team accept The results….. Contact USGBC within 25 days….

The day USGBC receives notice of project team acceptance of the final LEED review………then ……….

the project can be referred as LEEDS Certified.

USGBC will contact project team regarding fulfillment including their certificate and LEED plaque.

Conclusion

Green Building is a building Designed, Constructed

and operated with respect to Healthy Environment

and Conserved Environmental resources and

Energy.

LEED which was developed by USGBC is the

international benchmark to certify a green building

Green building satisfies a helthy building envelop

and reduces the effect of urbans areas to

environment.

Thanks For YourTime Listening