Roof Duct Support Spacing

Pipe size and weight.

Roof duct support spacing.

For 5 0 sections of rectangular duct maintain a spacing of not more than 10 0. 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. Support systems for ductwork may provide restraint in three directions against displacement and rotation. Based on the shape of the duct and the length of your duct joints you can now start locating the rest of your supports.

Consideration must be given with restraining ducts to avoid development of excessive internal duct stresses caused by expansion or contraction due to temperature variations. 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. For 4 0 sections of rectangular duct maintain a spacing of not more that 8 0. 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.

Start by checking your local codes. Php duct supports are designed and engineered to adhere to your unique specifications and solve every rooftop issue you have. And for gas service 17 ft for 2 to 40 ft for 8. Let s dig a little deeper and look at some of the factors that are important to pipe support spacing.

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. The honest answer is. 1 ft foot 0 3048 m 12 in.