SCHOFIELD, Wis. — Greenheck’s new ceiling radiation damper model CRD-320WT, combined with select models of Greenheck ceiling exhaust bathroom fans, adds even more code-compliant options for wood truss ...
There are five essential dampers types: ceiling radiation, fire, corridor dampers, smoke, and combination fire and smoke. This article will cover the three types that are required per Chapter 7 of the ...
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