General Guidelines on Green Buildings

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SITE AND MATERIAL REQUIREMENTS TO MEET LEED CRITERIAErosion and sedimentation control

It is required to develop and implement erosion and sedimentation control plan, to prevent soil erosion through storm water and wind, both during construction and post-development. Actions to be taken during the construction come under the builders. But the designers (landscape architect, MEP consultant, etc) need make sure that the feature required preventing erosion and sedimentation after the construction is included in the design. Storm Water Management The drain system should be designed so that any storm water leaving the site doesnt carry away any debris and suspended solids. There should be a filter (sand & pebbles) to prevent suspended solids entering municipal storm water drainage i. Sedimentation chambers and pits are recommended.Landscape

All hard landscape needs to be done using lighter color materials to reduce heat islands to minimize impacts on microclimate and humans. Hardscape material has to have a solar reflectance index higher than 29. Interlocking paving blocks or lighter color concrete can meet these requirements.

All soft landscape should be done with climate tolerant native or adapted vegetation that can survive under natural rainfall. Roofing Use roofing materials with solar reflecting index equal to or greater than the values given below for a minimum of 75% of the roof surface. Low slope roof (less than 10deg) should have SRI > 78 (white color roofing sheet) Steep roof (greater than 10 deg) should have Sri > 29 (beige, gray, natural ZnAl )Flooring Typical flooring can be tiles or terrazzo or cut cement. If floor paints are to be used, those should have VOC levels given in the following sections. Carpets and carpet cushions shall have GREEN LABLE PLUS certification. All other hard surface flooring materials should comply with the FLOORSCORE standards.

Certified WoodThe broad intent of this credit is to preserve the forest resources. At least 50% of total wood used in the building should be certified by the Forest stewardship council (FSC). 50% of any virgin wood (by value) should be purchased through sources that have the FSC certification.Typically the following applications could be considered for use of FSC wood: Doors and windows, frames, beadings, etc.

Low Emitting MaterialsAdhesives and sealantsThe intent is to reduce / avoid use of materials, which are irritating and potentially cause health problems to the installation workmen and occupants.The requirement is that the materials should conform to certain specificied VOC limits. The list of applications and VOC requirements are provided in the following table.Architectural ApplicationMaximum VOC Limit (g/l)Specialty ApplicationsMaximum VOC Limit (g/l)

Indoor Carpet Adhesives50PVC Welding 510

Carpet Pad Adhesives50CPVC Welding 490

Wood Flooring Adhesive 100ABS Welding 325

Rubber Floor Adhesives 60Plastic Cement Welding 250

Subfloor Adhesives 50Adhesive Primer for Plastic 550

Ceramic Tile Adhesives 65Contact Adhesive 80

VCT and Asphalt Tile Adhesives 50Special Purpose Contact Adhesive250

Dry Wall and Panel Adhesives 50Structural Wood Member Adhesive140

Cove Base Adhesives 50Sheet Applied Rubber Lining Operations850

Multipurpose Construction Adhesives 70Top and Trim Adhesive 250

Structural Glazing Adhesives 100

Substrate Specific ApplicationsMaximum VOC Limit (g/l)SealantsMaximum VOC Limit (g/l)

Metal to Metal 30Architectural 250

Plastic Foams 50Nonmembrane Roof 300

Porous Material (except wood) 50Roadway 250

Wood 30Single-Ply Roof Membrane 450

Fiberglass 80Other 420

Sealant PrimersMaximum VOC Limit (g/l)Aerosol AdhesivesVOC limit

Architectural Non Porous250General purpose mist spray65% VOCs by weight

Architectural Porous775General purpose web spray55% VOCs by weight

Other 750Special purpose Aerosol adhesive70% VOCs by weight

PaintsAll interior paints (walls, ceiling, wood polish etc) should conform to the following LEED criteria.

Material/LocationVoC limit

Flats50 g/L

Non-flat150 g/L

Anti rust paints250 g/L

Varnish350 g/L

Lacquer550 g/L

Floor coatings100 g/L

Waterproofing sealers250 g/L

Composite WoodComposite wood can be used for certain area of interior particianing. Composite wood used in the building should not have urea-formaldehyde based resins. However, wood with phenol - formaldehyde resin can be used.

MATERIALS IMPACTING WATER EFFICIENCY

All water fixtures used in the project should confirm to the following flow requirements to reduce water useage:

FixtureFlow Requirement

Water Closets (lpf)3.5

Urinals (lpf)1

Showerheads (lpm)*3.7

Kitchen Taps (lpm)3.7

Washbasin Faucets (lpm)**1.5

Pre rinse spray valve (lpm)5.5

Metering Faucet (self closing) (l /cycle)0.9

**Flow rates are measured at 5.5bar *Flow rates are measured at 4.15bar

Water treated to tertiary level can be used flushing and/or irrgation

MATERIALS IMPACTING ENERGY EFFICIENCY The materials for the following would be selected based on the results of energy simulation: Faade glazing 0. Should have appropriate U-values, Solar Heat Gain Coefficient and Visible Light Transmission0. High performance glass can be limited to areas exposed to sun0. Typical values

FactorTypical Value

U Value5-6 W/m2 deg K

Solar Heat Gain Coefficient0.5-0.7

Visible Light Transmission70%-90%

Insulation0. Typical wall U value = 0.58 minimum 0. All mass roof would be insulated with 3 inch glass wool (24 kg/cu.m), appropriate polystyrene or rock wool or equivalent. (not applicable for concrete slabs) SkylightsSHGC (max)U-value (max)Visible light transmission (min)

0.490.820.65