Although this isn t always possible in attic crawl spaces you should always insulate the duct to prevent condensation problems.
Attach vent to ceiling.
Drill a hole in either side of the register and then put the register up in the ceiling and mark the holes with a pencil.
Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic.
Place the vent.
The drill bit should be slightly smaller than the drywall.
Remove the register drill holes at the marked locations install drywall anchors and then screw the register in place.
Use liquid nails to fasten a threaded insert regular gyproc units will be fine where the holes in the vents are.
You will just have to find a way to mount the cover either by installing the adapter tight to a ceiling joist or by building a frame around the adapter.
If the hole in the ceiling is so large that the construction adhesive won t stay then use spray foam to fill the gaping hole and then use the construction adhesive to hold the threaded insert.
Duct already wrapped in insulation at home centers.
Drill a hole into the ceiling drywall at each mark.
How to install a vent register with a brand new duct heating cooling outlet.
Simply follow the directions below.
You can find 4 in.
Mark the holes in each corner or on each side with a.
The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.
For optimum performance locate it between the shower and the toilet.
The most common solution is to add a vent adapter to the existing pipe and attach a vent cover over the ceiling panel.
Lay the back of the vent on the ceiling covering the open duct.
Climb into the attic and clear away any insulation from around the hole.
There are several choices to make with this situation.
How to adhere a ceiling vent to drywall 1.
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