Author Topic: Recessed lighting in an with an isolated ceiling?  (Read 3963 times)

tom358

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Recessed lighting in an with an isolated ceiling?
« on: October 05, 2006, 09:00:37 PM »
Can is use recessed lighting with an isolated ceiling (a room within a room concept) or will that just defeat the purpose?  I need every bit of soundproofing I can get since I am in a townhouse, but would really like to use recessed can lights.
Thanks

johnbergstromslc

  • Guest
Re: Recessed lighting in an with an isolated ceili
« Reply #1 on: October 05, 2006, 09:34:28 PM »
Well, you have to realize that recessed lights (or even plain, old electrical boxes) are basically gaping holes in your drywall and gaping holes don't tend to block sound well.  The more you can seal the fixture/box, the better.  
Sometimes it's possible to build a drywall 'isolation box' inside the ceiling to cover the fixture.  But it's a lot trickier with recessed cans.  

agtrojan

  • Guest
Re: Recessed lighting in an with an isolated ceili
« Reply #2 on: October 12, 2006, 04:37:30 PM »
Build an enclosure over the can lights that is lined with MLV and SSP Mat.

Visualize a shoe box over the can a couple inches of clearance where you apply the MLV with adhesive backing to the interior of the box then add SSP Mat with adhesive backing directly over the MLV.  Minimum thickness recommended for the mat is 1/2" or greater.

Take a look at the MLV info:
http://www.soundproofing.org/infopages/flooring.htm

Then look at the SSP Mat pricing:
http://www.soundproofing.org/sales/prices.html

joel

  • Guest
Re: Recessed lighting in an with an isolated ceili
« Reply #3 on: November 18, 2006, 12:59:14 AM »
Hi Tom 358,
Some people have created a nifty "top hat" type of soundproof cover for canned lights that don't put off much heat.  They have used MLV w/closed cell foam.  What you do is make a cylinder first - foam side in.  Glue edges together to form the cone and then glue a circle of same w/foam side in on top - leave enough clearanse so that there is plenty of side and top space for air movement.  This "top Hat" is then fitted over the canned ligt and attached to ceiling, caulk all edges.  For info on this MLV materials see the third type we sell at http://www.soundproofing.org/infopages/flooring.htm
Joel