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.
Ceiling vent cover falling.
Lay the back of the vent on the ceiling covering the open duct.
Mount the pieces to the inside of the vent using self drilling tapping screws.
Drill two holes in each to match the holes in the vent cover.
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Make sure the vent is large enough for the duct.
You now have two pieces that are 11 3 4 by 1 2.
If the inside dimension of the vent is say 12 make the pieces 11 3 4 x 1.
Mark the holes in each corner or on each side with a pencil.
Depending on the look you re after paneling over an ugly ceiling is still a viable option.
Get it as soon as thu oct 1.
If this is just a cover over a ventilation hole to the next floor somewhat common in older buildings you can safely use a piece of wood instead.
With the vent cover down take a look up in there to see if there s any actual wood nearby.
If this is a heating duct place a piece of sheet metal on the other side of the drywall and use a self drilling screw to reattach the cover.
Be sure to take into account the weight of the paneling.
Paneling was very popular 50 years ago and when it fell out of favor people removed it or covered it up.
You ll need solid framework to attach the paneling to.
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Bend them at 90 degrees along the length.
Use liquid nails to fasten a threaded insert regular gyproc units will be fine where the holes in the vents are.
Magnetic vent cover 5 1 2 x 12 extra thick wall floor ceiling vent covers 4 pack that will reduce sound very flexible and will stick to your vents made from premium magnets by kelbert.
The marks should be at.