Glossary

Batts

Pressed mats of glass fiber, mineral wool or other insulating material sold in 4′ and 8′ lengths.

Benchmarking

A self-improvement tool for organizations that is designed to: 1) establish a baseline for typical facility energy use; 2) provide comparison to other similar facilities and/or similar systems highlight energy intensive systems and components; 3) highlight areas of potential improvement; 4) identify maintenance or operating problems; and 5) establish best practices for use in future designs.

Blankets

Pressed mats of glass fiber, mineral wool or other insulating material sold in continuous rolls that may be cut to any lengths.

British Thermal Unit (BTU)

A measure of heat equal to the amount of heat necessary to raise the temperature of one pound of water one degree F.

Building Envelope

The physical area that separates a building’s interior and exterior environments.