Roof Duct Support Spacing

For 5 0 sections of rectangular duct maintain a spacing of not more than 10 0.

Roof duct support spacing.

Consideration must be given with restraining ducts to avoid development of excessive internal duct stresses caused by expansion or contraction due to temperature variations. Support systems for ductwork may provide restraint in three directions against displacement and rotation. Pipe size and weight. For high density polyethylene hdpe the spacing would vary from 7 ft for 4 pipe with sdr diameter over thickness of 11 0 to 16 ft for 24 pipe.

The 8 ds is a frame constructed of strut and miro s patented bases to support single or multiple tiers of duct pipe cable trays and more. Duct rests on a 1 5 8 x 1 5 8 length of channel strut which is adjustable up and down using the channel nuts in the corner brackets. And for gas service 17 ft for 2 to 40 ft for 8. Php is the leading designer manufacturer and supplier of innovative and sustainable roof pipe and equipment support systems in the nation.

Schedule a roof evaluation. Based on the shape of the duct and the length of your duct joints you can now start locating the rest of your supports. For 4 0 sections of rectangular duct maintain a spacing of not more that 8 0. Let s dig a little deeper and look at some of the factors that are important to pipe support spacing.

While the standard maximum spacing for roof pipe supports is 10 feet your community may require more supports and tighter spacing. Php duct supports are designed and engineered to adhere to your unique specifications and solve every rooftop issue you have. For fiber reinforced plastic pipe frp support spacing in liquid service would vary from around 11 ft for 2 pipe to 22 ft for 8 pipe.