Roof Mounted Duct Support Spacing

Pa50 50 5 specify length for order type b duct support design guide contact product support for any variations gl height to duct centre line p purlin spacing w duct width max h duct height max s support spacing insulated.

Roof mounted duct support spacing.

Use an intermediate support on elbows where the center line length plus 4 0 is greater than the support spacing for the duct type. The php d duct support leverages a goal post design with a single crossbar below the duct to support all sizes of square or round ducting cable trays and piping. This support can meet nearly all height requirements above the roof surface and is approved for seismic and high wind applications. Hart cooley llc.

Consideration must be given with restraining ducts to avoid development of excessive internal duct stresses caused by expansion or contraction due to temperature variations. Also offsets are elbows. Support systems for ductwork may provide restraint in three directions against displacement and rotation. Formula for figuring lbs.

Ductwork support spacing tech brief 13 01 question can we use 14 foot support spacing for round spiral ductwork. For example the spacing of pipe supports on a 6 line will be approximately 6 10 16 feet. For pvc pipe the spacing depends on the pipe schedule and operating temperature. Locate a support within 2 0 of the ends of any elbows including the elbows that may be turning vertically to penetrate the roof.

Supports are at 10 spacing. Smacna hvac duct construction metal and flexible 2005 table 5 2 allows for a maximum spacing of 12 feet. This spacing changes at high temperatures and for materials other than steel. For example for copper tubing support spacing varies from 8 ft for 1 tubing to 12 ft for 4.

In addition smacna 2005 stipulates the required wire size rod or strap required for proper support. Per square inch on the roof is. 5030 corporate exchange blvd. Two 6 pipes at 31 52 lbs.

S support spacing max 2000mm h duct height max 2240 mm w duct width max 2240 mm braced bay brace part no.