Roof Mounted 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.

Roof mounted duct support spacing.

Duct rests on a 1 5 8 x 13 16 length of channel strut which is adjustable up and down using the channel nuts in the corner brackets. Xii model project specification. Tables for pipe support spacing 1969grad mechanical 29 apr 03 06 03. The 6 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.

I have calculated the pipe stresses for the given spans in the mss publication and found that the stresses are usually less than the allowables found in either b31 3 or b31 8. Php duct supports are designed and engineered to adhere to your unique specifications and solve every rooftop issue you have. Arms are long and at a wide angle to support pipe from 4 to 36 in diameter. With the suggested pipe support spacing spread sheet calculation for wt.

Roof mounted duct supports and hanger supports our rooftop duct supports and other roof support systems offer a wide range of options for supporting hvac ductwork supports on top of rubber membrane steel and concrete roofs. The 6 ds is available in an open configuration or can be made to enclose the duct on the bottom and the top. Hold down anchor spacings are given for round duct to be encased in concrete. Schedule a roof evaluation.

These oshpd approved anchors and brackets support threaded rod mount hangers during seismic activity. Mount these beams across parallel roof joists to hang threaded rod and route pipe duct and other overhead systems in areas where there s. Php is the leading designer manufacturer and supplier of innovative and sustainable roof pipe and equipment support systems in the nation. Featuring a similar design to the time tested model 1 5 the model 3 0 is just as simple to install and is guaranteed to withstand harsh rooftop conditions for years to come.

Support systems for ductwork may provide restraint in three directions against displacement and rotation.