Materials & Systems

HVAC (Heating, Ventilation, and Air Conditioning)

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The technology of indoor and vehicular environmental comfort, aiming to provide thermal comfort and acceptable indoor air quality.

Other Terms

Ductwork

A system of channels or pipes used to convey heated or cooled air in HVAC...

Change Order

A written document that modifies the original contract documents, authorizing...

Sheathing

The board or panel material used in floor, wall and roof assemblies of both...