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Old 01-19-2009, 04:01 PM   #1
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HVAC Ceiling vent falling off, how to fix?

Hello, I'm not sure if this is the correct forum for my post so please bear with me. It's not a real HVAC issue per se.

Our home has central air and one of the rooms has a loose ceiling vent. The drywall has broken away on both edges giving the vent screws nothing to secure to. How can I repair this? I've gone all McGyver on it and tried using paper clips to secure custom-made strips of drywall which I can then screw the vent into, but this is not working beyond a few days. Should I cut a much large hole and replace with a bigger sheet of drywall.


Thanks a bunch.


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Old 01-19-2009, 04:15 PM   #2
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I'd probably go with longer screws,+ some sorta Wood backer.....


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Old 01-19-2009, 04:17 PM   #3
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Vents are typically secured into a sheet metal flange that sits above the sheet rock. You just need to use a 3" sheet metal screw to attach it. If there is nothing but empty space above the edges of the vent, you will need to fill with drywall or plaster first, since "sky screws" do not exist.
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Old 01-19-2009, 04:34 PM   #4
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Great ideas

Thanks for the ideas guys. I'll work on those sky screws some other day.
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Old 01-20-2009, 02:44 PM   #5
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Fastening to the drywall isn't going to hold anything for long. If your vents are in the ceiling, I assume you have attic access. Put a block of wood on either side of the "boot" to fasten the grill to if there isn't a metal flange as mentioned above.
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