This is a short training video to show technicians and homeowners how to properly install flex duct to plenums.
How to attach a plenum to a roof jack.
Insert the lower end of the collar into the end of the duct riser at the cooler platform and fit the apron at the upper surface of the.
All connections inside the home must be made below the ceiling.
We re installing roof jacks.
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Climb on the roof and cut away any shingles still covering the hole then spread roofing tar around the perimeter of the hole.
Then just connect the feed duct to it and put a few short screws through it and wrap it with aluminum tape.
Rg ro furnaces may be used with roof jacks as tall as 170 excepr t g1 056m odesl w hci ha remil eti d ot 1 20.
Then screw the ply to the roof deck.
Put the fingers through and bend it back on the plywood.
Pull the shingles lining the part of the hole nearer the top of the.
Seal the tabs at both sides of the collar with duct tape.
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Stainless steel roof jacks are available.