Advanced framing techniques — Also called optimum value engineering (OVE), it is a methodology of construction designed to conserve construction materials by using alternate framing methods. Concepts include 19.2-24" framing centers, modular layout, single top plates, individually sized (right-sized) headers or no headers or double rim joists in lieu of headers, framing ladders at T-intersections and open corner framing. Some methods may not work in engineered structures, but many will. The overall savings in framing materials and associated costs can be significant. An excellent website at Toolbase describes the concept in detail.
AFUE — Annual fuel utilization efficiency. The higher the percentage, the greater the efficiency of the appliance. Standard efficiencies run in the mid 70-percent range. Higher efficiency furnaces run between 82 percent and 90+ percent AFUE.
ASHRAE — American Society of Heating, Refrigeration and Air Conditioning Engineers writes many of the standards for installation of these systems.
Alternative fuel vehicle — Vehicles that utilize fuel other than gasoline or diesel fuels. Vehicles may be electric, LPG, natural gas, bio-diesel or a hybrid of these fuels.
Brownfield — Abandoned, idle or underused industrial or commercial buildings where expansion or development is complicated by real or perceived environmental contamination.
Certified wood — See FSC-certified wood
Cool Roof — Specialized roofing materials designed to reflect the heat of the sun away from the building, thus reducing the cooling load and associated air conditioning costs. There are various manufacturers of cool roofs.
