These are a few of the reasons as to why you should consider an engineered support and why it will give you your best chance at a long and damage free roof.
How to suypport round ducts on roof.
I have gutted the home and rebuilt much of it.
7 0 72 1 4 to 84 dia.
Up to 12 diameter.
2 0 12 1 4 to 24 dia.
For round ducts larger than 1 600mm diameter the support system must be engineered for the duct mass.
With ducts in very hot arizona.
Consideration must be given with restraining ducts to avoid development of excessive internal duct stresses caused by expansion or contraction due to temperature variations.
Typical round duct hangers.
Use your leg a workbench or the ground to support the back side of the pipe.
The wire hangers are based on the gripple hang fast system.
Php d enclosed duct support.
6 0 60 1 4 to 72 dia.
Two side by side screws with the proper edge and end distances are.
Not be installed on the roof see figure 5.
For 4 0 sections of rectangular duct maintain a spacing of not more that 8 0.
Round duct size equipment rail length.
Php d duct support 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.
I have unsightly ducts running across the great room of the house.
Trapeze hangers with cradles can be used.
Foot midcentury modern home with flat roof no basement no attic 8 foot ceilings 7 ft.
Adjustability on width and height can your duct support be modified quickly to reduce labor time.
This support can meet nearly all height requirements above the roof surface and is approved for seismic and high wind applications.
This condenser had supplemental securement straps see arrows.
For 5 0 sections of rectangular duct maintain a spacing of not more than 10 0.
Our versatile time saving roof supports are cost effective innovative and easy to install with a single standard hand tool.
Use one hand to keep the two edges close and the other to apply downward pressure.
Based on the shape of the duct and the length of your duct joints you can now start locating the rest of your supports.
Hangers for round ducts.
3 0 24 1 4 to 36 dia.
When assembling pipe start at one end and work the seam together like a zipper.
Spacing are you supporting round ducts or rectangular.
Double skin insulated round ducting requires engineered hangers.
Some factors to consider.
They will be insulated and foamed.
4 0 36 1 4 to 48 dia.
Support systems for ductwork may provide restraint in three directions against displacement and rotation.
Assemble the metal ducting like a zipper.
Some designs featuring rts patented round puc base u s.
5 0 48 1 4 to 60 dia.
The contractor has given me a bid to run them on the roof.