Flex Duct Questions
Flex Duct Questions
(OP)
Question 1: Is it wise to use flex duct over lighting in a T-bar (2x4') environment? Will the flex duct burn or have problems?
Question 2: Do you size flex duct the same as round duct or is it wise to size it one size larger (12" to 14")due to the high roughness?
Question 2: Do you size flex duct the same as round duct or is it wise to size it one size larger (12" to 14")due to the high roughness?





RE: Flex Duct Questions
Question 2: We typically give a limit of 1200mm (4') as maximum flex duct length. We also specify a 'hard elbow' to prevent the flex from collapsing at the diffuser. Don't typically increase the size of the flex as 4' is a fairly small portion of the system.
RE: Flex Duct Questions
Longer flexes are good for acoustics and enables easy/cheap grille locations for fitout.