acoustical duct lining
See duct lining.
Glossary
acoustical door
A solid, heavy door which is gasketed along the top and sides; usually has an automatic door bottom; especially constructed to
Glossary
acoustical ceiling board
An acoustical material in board form, designed primarily for suspended ceiling application.
Glossary
acoustic, acoustical
The qualifying adjectives acoustic and acoustical have the following meanings: arising from, actuated by, containing, producing, or related to sound. In general, acoustic is