Leed Ga Glossary

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Adapted (or introduced) Plants

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reliably grow well in a given habitat with minimal winter protection, pest control, fertilization or irrigation once their root systems are established. Adapted plants are considered low maintenance and not invasive

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Adaptive Reuse

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The renovation of a space for a purpose different from the original.

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Adhesive

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Any substance used to bond 1 surface to another by attachment. Adhesives include bonding primers, adhesive primers, and adhesive primers for plastics. (SCAQMD Rule 1168)

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Aerosol Adhesive

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An aerosol product in which the spray mechanism is permanently housed in a nonrefillable can. Designed for hand-held application, these products do not need ancillary hoses or spray equipment. Aerosol adhesives include special-purpose spray adhesives, mist spray adhesives, and web spray adhesives. (SCAQMD Rule 1168)

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Agrifiber Products

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Products that are made from agricultural fiber. Examples include particleboard, medium density fiberboard, plywood, oriented-strand board, wheatboard, and strawboard.

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Air-Conditioning

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The process of treating air to meet the requirements of a conditioned space by controlling its temperature, humidity, cleanliness, and distribution. (ASHRAE 62.1-2007)

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Air-Handling Units (AHUs)

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Mechanical indirect heating, ventilating, or air-conditioning systems in which the air is treated or handled by equipment located outside the rooms served, usually at a central location, and conveyed to and from the rooms by a fan and a system of distributing ducts. (NEEB, 1997 edition)

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Albedo

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The measure of the ability of a surface material to reflect sunlight--visible, infrared, and ultraviolet wavelengths--on a scale of 0 to 1. Black paint has a solar reflectance of 0; white paint (titanium dioxide) has a solar reflectance of 1.

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Albedo is synonymous with Solar Reflectance.

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Alternative Daily Cover

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Material (other than earthen material) that is placed on the surface of the active face of a municipal solid waste landfill at the end of each operating day to control vectors, fires, odors, blowing litter, and scavenging.

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Alternative-Fuel Vehicles

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Vehicles that use low-polluting, non gasoline fuels such as electricity, hydrogen, propane, compressed natural gas, liquid natural gas, methanol, and ethanol. In LEED, efficient gas-electric hybrid vehicles are included in this group.

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Anti corrosive Paints

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Coatings formulated and recommended for use in preventing the corrosion of ferrous metal substrates.

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Aquatic Systems

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Systems that are ecologically designed treatment systems in which a diverse community of biological organisms (e.g., bacteria, plants, fish) treat waste water.

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Aquifer

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An underground water-bearing rock formation or group of formations that supply groundwater, wells, or springs.

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Architectural Porous Sealant Primer

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A substance that is used as a sealant on porous materials.

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Area-weighted SRI

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A weighted average calculation that may be performed for buildings with multiple roof surfaces to demonstrate that the total roof area has an average solar reflectance index equal to or greater than that of a theoretical roof 75% of whose surfaces have an SRI of 78 and 25% have an SRI of 30.

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Assembly

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Either a product formulated from multiple materials (e.g., concrete) or a product made up of subcomponents (e.g., a workstation)

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Assembly Recycled Content

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The percentage of material in a product that is either postconsumer or preconsumer recycled content. it is determined by dividing the weight of the recycled content by the overall weight of the assembly.

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Attendance Boundary

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Used by school districts to determine which students attend what school based on where they live.

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Audiovisual (A/V) Media

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Slides, film video, sound recordings, and other such devices used to present information.

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Automatic Fixture Sensors

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Motion Detectors that automatically turn on and turn off lavatories, sinks, water closets and urinals. Sensors can be hard wired or battery operated.

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Baseline Building Performance

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Annual energy cost for a building design intended for use as a baseline for rating above standard design, as defined in ANSI/ASHRAE/IESNA Standard 90.1-2007, Informative Appendix G.

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Baseline Irrigation Water Use

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The amount of water used by conventional irrigation in the region.

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Basis of Design

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Includes design information necessary to accomplish the owner's project requirements, including system descriptions, indoor environmental quality criteria, design assumptions, and references to applicable codes, standards, regulations, and guidelines.

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Bicycle Racks

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In LEED, include outdoor bicycle racks, bicycle lockers, and indoor bicycle storage rooms.

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Biochemical Oxygen Demand

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A measure of how fast biological organisms use up oxygen in a body of water. It is used in water quality management and assessment, ecology, and environmental science.

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Biofuel-based Energy Systerms

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Electrical power systems that run on renewable fuels derived from organic materials, such as wood by-products and agricultural waste. In LEED, biofuels include untreated wood waste (e.g., mill residues), agricultural crops or waste, animal waste and other organic waste, and landfill gas.