LEED Reference Guide for Green Building Operations and Maintenance on Innovation in Operations (IO); Regional Priority (RP); Glossary. Suppliers’ definitions of these terms vary from supplier to supplier and from the USGBC offers this method only for a few select LEED credits that are often O&M plan: Operations and maintenance plan: a plan that specifies major system . Acronyms and Glossary of Terms.┬╗ Acronyms and . LEED: Leadership in Energy and Environmental Design┬« ozone). O&M: Operation and Maintenance .

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It includes leased durable goods returned to their owner but does not include durable goods that remain functional and are moved to another floor or building. A simple box analysis glosxary a basic, schematic building form. This does not include any hotel loads producing tlossary power in the plant. Excludes non-enclosed or non-enclosable roofed-over areas, such as exterior covered walkways, porches, terraces or steps, roof overhangs, and similar features.

Load shedding is usually conducted during emergency periods, such as capacity shortages, system instability, or voltage control. Utility meters are often called revenue grade because their measurement directly results in a charge to the customer. Environmental Protection Agency website, at www. The sum of electric power generated at the generator terminals of local generators.

Office accessories, such as desktop blotters, trays, tape dispensers, waste baskets, and all electrical items, such as lighting and small appliances, are excluded. Because the water is sealed within the system, some closed-loop cooling systems use nonpotable water such as recycled process water harvested from an air handler’s cooling coil condensate. Salary Benchmarks Advanced Search. Evaporation occurs when liquid water from soil, plant surfaces, or water bodies becomes vapor.

It does not include any door exclusively designated as an emergency exit, or a garage door not designed as a pedestrian entrance. It may include refrigeration equipment, cooking and food preparation, clothes washing, and other major support appliances. Reuse includes the recovery and reemployment of materials recovered from existing building or construction sites. Wastewater from kitchen sinks sometimes differentiated by the use of a garbage disposalshowers, or bathtubs is considered blackwater under some state or local codes.


Since the area involved is differential, it is customary to refer to this as illuminance at a point. For example, on a site with 10, square feet square meters of buildable land area, an FAR of 1.

Drift eliminators capture these droplets and return them to the reservoir at the bottom of the cooling tower or evaporative condenser for recirculation. If a building foundation is below the water table, a sump pump may be required. Units for measuring density may differ according to credit requirements.

Glossary | U.S. Green Building Council

Also known as single-stream recycling. The standard technique for its determination uses spectrophotometric measurements, with an lesd sphere to determine the reflectance at each wavelength.

Store Resources Education Directory Articles. Typically, a rain barrel or cistern stores the water; other components include the catchment surface and conveyance system. A street or other right-of-way does not constitute previously developed land; it is the status of property on the other side of right-of-way or the street that matters.

In contrast, aluminum roof coatings have intermediate emittance levels. Before this water can be used for irrigation, its quality needs to be checked.

Examples include water, carbon dioxide, and ammonia. Within the LEED rating systems, there are a number of ways to achieve certification. Project teams should comply with the graywater definition established by the authority having jurisdiction in the project area.

USGBC Perspective: Understanding Credit Options in LEED v4 O+M

The sDA value is expressed as a percentage of area. Despite current practice, science has not proven that antimicrobial treatments reduce infection transfer in building finishes more effectively than standard cleaning procedures.

The three options build on one another in terms of resources and involvement. Wastewater from buildings can be classified as graywater, blackwater, or process wastewater. Black paint has a solar reflectance of 0; white paint titanium dioxide has a solar reflectance of 1. In our attempt to deliver a superior experience, we no longer support Internet Explorer versions 7 and older.


When used in density calculations, buildable land excludes public rights-of-way and land excluded from development by codified law. Also known as rated average life. Examples include school boards, local governments, and religious institutions.

The system is designed to combine the flexibility of buses with the efficiency of rail.

These are engineered practices that may require specialized design assistance. Examples include planer shavings, sawdust, bagasse, walnut shells, culls, trimmed materials, overissue publications, and obsolete inventories. The depth of the growing medium is an important factor in determining habitat value. Often these substances can become more potent and harmful to ecosystems the longer they persist.

In a health care facility, acoustical concerns and embedded equipment, as in a surgery suite, may prevent demountable partitions from being used. A remanufactured product can be expected to perform as if it were new. Occupied spaces are further classified as regularly occupied or nonregularly occupied spaces based on the duration of the occupancy, individual or multioccupant based on the quantity of occupants, and densely or nondensely occupied spaces based on the concentration of occupants in the space.

One may have abandoned the property of contract rights by not doing what is required by the contract. Generally, the gross floor area is the sum of the floor areas of the spaces within the building, including basements, mezzanine and intermediate-floored tiers, and penthouses with headroom height of 7.