Some Possible Credit Considerations for LEED-NC (New Construction)

LEED Credit Category

Requirement 

Sustainable Sites Credit 7.2: Heat Island Effect: Roof

Solar Reflectance Index of 78 (some systems exceed 110)

Energy and Atmosphere Prerequisite 2: Minimum Energy Performance

Comply with ASHRAE Std 90.1-2004:

If at least 70% reflectivity / .75 emittance may be able to reduce amount of insulation based on adjustment factors

Energy and Atmosphere Credit 1: Optimize Energy Performance

Reduce energy costs when compared to the energy cost budget of building’s design; cool roofing reduces building’s cooling load

Materials and Resources Credits 1.1 and 1.2: Building Re-Use of Walls, Floors and Roof

Extend the life of existing building, conserve resources, reduce waste and reduce environmental impacts; roof longevity extends the life of existing structure and HVAC equipment

Materials and Resources Credits 2.1 and 2.2: Construction Waste Management

Divert construction and demolition debris from disposal in landfills and incinerators; custom pre-fabrication virtually eliminates jobsite scrap

Materials and Resources Credits 4.1 and 4.2: Recycled Content

Use materials with pre- and post-consumer content; pre-consumer recycled into walkpads; post-consumer programs recycle roofs as flooring

Materials and Resources Credits 5.1 and 5.2: Regional Materials

Use building materials or products extracted or manufactured within 500 miles of project site; some companies strategically locate facilities within proximity of major markets

Indoor Environmental Quality Credit 2: Increased Ventilation

Provide additional outdoor ventilation to improve indoor air quality; systems with two-way breather vents keep negative air pressures and condensation in check

Indoor Environmental Quality Credit 7.1: Thermal Comfort

Provide a comfortable thermal environment for occupants; cool roofing helps keep building cooler making HVAC more effective

Some Possible Credit Considerations for LEED-EB (Existing Buildings)

LEED Credit Category

Requirement

Sustainable Sites Credit 7.2: Heat Island Effect: Roof

Solar Reflectance Index of 78 (some systems exceed 110)

Energy and Atmosphere Prerequisite 2: Minimum Energy Performance

Achieve at least 2 points in EA Credit 1 (Cool Roofing reduces cooling load)

Energy and Atmosphere Credit 1: Optimize Energy Efficiency Performance

Demonstrate ENERGY STAR® energy performance rating of at least 69; efficiency in at least the 19th percentile; or follow LEED-EB Operations & Maintenance Reference Guide (Cool Roofing reduces cooling load)

Materials and Resources Credit 9: Solid Waste Management; Facility Alterations and Additions

Divert construction and demolition debris from disposal in landfills and incinerators; custom pre-fabrication virtually eliminates jobsite scrap

Indoor Environmental Quality Credit 1.3: Increased Ventilation

Provide outdoor air ventilation and improve indoor air quality; two-way breather vents keep negative air pressures and condensation in check

 

To see above tables and to learn more about 'High Performance PVC Roofing', click below for a paper written by Drew Ballensky.

Drew Ballensky Paper

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