III. Protect and Conserve Water
Indoor Water. Employ strategies that in aggregate use a minimum of 20 percent less
potable water than the indoor water use baseline calculated for the building, after meeting
the Energy Policy Act of 1992 fixture performance requirements.
Outdoor Water. Use water efficient landscape and irrigation strategies, including water
reuse and recycling, to reduce outdoor potable water consumption by a minimum of 50
percent over that consumed by conventional means (plant species and plant densities).
Employ design and construction strategies that reduce storm water runoff and polluted
site water runoff.
IV. Enhance Indoor Environmental Quality
Ventilation and Thermal Comfort. Meet the current ASHRAE Standard 55-2004,
Thermal Environmental Conditions for Human Occupancy, including continuous
humidity control within established ranges per climate zone, and ASHRAE Standard
62.1-2004, Ventilation for Acceptable Indoor Air Quality.
Moisture Control. Establish and implement a moisture control strategy for controlling
moisture flows and condensation to prevent building damage and mold contamination.
sunlight penetration) in 75 percent of all space occupied for critical visual tasks. Provide
automatic dimming controls or accessible manual lighting controls, and appropriate glare
control.
Low-Emitting Materials. Specify materials and products with low pollutant emissions,
including adhesives, sealants, paints, carpet systems, and furnishings.
Protect Indoor Air Quality during Construction. Follow the recommended approach
of the Sheet Metal and Air Conditioning Contractor=s National Association Indoor Air
Quality Guidelines for Occupied Buildings under Construction, 1995. After construction
and prior to occupancy, conduct a minimum 72-hour flush-out with maximum outdoor air
consistent with achieving relative humidity no greater than 60 percent. After occupancy,
continue flush-out as necessary to minimize exposure to contaminants from new building
materials.
V. Reduce Environmental Impact of Materials
Recycled Content. For EPA-designated products, use products meeting or exceeding
EPA=s recycled content recommendations. For other products, use materials with
recycled content such that the sum of post-consumer recycled content plus one-half of the
pre-consumer content constitutes at least 10% (based on cost) of the total value of the
materials in the project.
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