Static measurements will show you exactly what ducts need to be adressed
@gordonborsboom7460
4 ай бұрын
Talking about duct reduction through a restricted space, i.e.,going from 12 to 10 and back to 12. My ducting text book illustrated a 20% allowable area reduction for traversing an obstruction. The example was traversing across the underside of a beam with a restricted height dimension. BTW, working in an open web wood truss joist gives me anxiety, as the customer expects the duct to fit in the web and the carpenter and truss designer has no clue.
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