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Installing ceiling speakers with blown in insulation in the attic


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I used a ceiling hole saw to cut in about 50 ceiling speakers. The type with cover to catch the dust. My insulation was blown in type.

the builder had already prewired for each speaker back to the av closet.

When cutting holes, have a 16”x16” x 1” thick bare insulation (no paper backing) for each hole ready. After cutting hole, hold the cut drywall in place, position insulation up against ceiling, let cut drywall circle drop into insulation so you can carefully pull it out, then push the 16x16x1 square insulation gently thru cut hole. This will prevent the blown insulation from falling into room.

you can then pull wire and connect to speaker and install speaker up against the insulation as long as speaker manufacturer is good with direct insulation contact which most ceiling speakers are.

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Using a drywall saw is fine for a couple. But even as little as 4, I'm using a hole saw. But then again, I'm 61. Sawing over my head while standing on a tall step ladder completely sucks. I'd write a check instead if the workers would show up. 

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  • 3 years later...

Use painting tape on your ceiling. Use a high quality drywall hole saw to cut your hole (make sure the plastic cover that catches the dust does not spin when you cut the hole). For an 8” hole get some 1/2 insulation and cut a 16” x 16” square. When you pull the hole saw down with the circle drywall cutout, carefully slide the square insulation piece over the hole and push it up into the ceiling. This will keep the blown insulation from falling thru. Then simply install the speaker into the hole pushing the 1/2 insulation up. You will have more than sufficient air gap around the speaker while at the same time maintaining the insulation barrier.

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1 hour ago, C4 User said:

And do not cut the hole too small. Measure twice, cut once. Try to enlarge a pre-existing hole with a hole saw is not fun.

It's not that bad.  You can staple a piece of cardboard up over the original hole, and start the hole saw on the cardboard, and it'll hold the hole saw in place fairly well when it hits the sheetrock if you don't press too hard to start.



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