Scoot Posted March 27, 2008 Share Posted March 27, 2008 Hi All,I'm finishing the basement (as most of you are already aware of) and I'd like to insulate the ceiling to help with noise transfer between the upstairs and downstairs. My question is: do I run the insulation parallel to the floor joists or run them perpindicular to them? Link to comment Share on other sites More sharing options...
King Canada Posted March 27, 2008 Share Posted March 27, 2008 Best method for sound deadening is hang Sound Channel first and hang the drywall from that. It's more effective than insulation. Link to comment Share on other sites More sharing options...
Surface Tension Posted March 27, 2008 Share Posted March 27, 2008 King Canada, has some very "sound" advice. Get it "sound" advice, yuk,yuk, snort, snort. Its the sound that gets transfered through the floor joists that'll you'll be trying to eliminate. Link to comment Share on other sites More sharing options...
sparcebag Posted March 28, 2008 Share Posted March 28, 2008 There is a board made as sound board.What do you plan on using?It sounds as though your going to use rigid insulation 4x8 sheets?Sound Board is fairly costly,I could also suggest the suspended ceiling tiles 2x4 they are more sound dampening then rock,maybe use the ceiling tiles in between the joists,then rock. Link to comment Share on other sites More sharing options...
Pooh Posted March 28, 2008 Share Posted March 28, 2008 i would use a batted insulation and souind channel. staple the insulation to the joist and screw the rock to the channel. Link to comment Share on other sites More sharing options...
Farmboy1 Posted March 31, 2008 Share Posted March 31, 2008 Make sure if you use "Sound Channel" that when screwing you rock to the channel to not screw through the channel into the joists or the entire system is flawed and does nothing. In a single family house, sound channel may be a little more money then you want to spend. I would go with a R-19 insulation in the joist space, with rock over the top. This will not cut down the footsteps from upstairs, but will cut down on noise transfer (voices, TV, etc.) Anything over R-19 does not get much more for sound, and becomes cost prohibitive. Link to comment Share on other sites More sharing options...
Scoot Posted April 7, 2008 Author Share Posted April 7, 2008 A follow up question on this-- I did some checking on the sound channel and it was too expensive for me (I'm already way over budget). I have a bunch of extra insulation, the stuff I originally was asking about. My neighbor said he used similar insulation in the floor joists and it worked great for noise proofing. So, given that report and my money pinch, I'm going to give that a try. So... I've got insulation friendly recessed lights hung and I'm putting the insulation up in the floor joists. My question is: do I need to be careful what the insulation touches/doesn't touch? Can it go across a hot water line? Can it be draped across the top of a light? How about a heater duct? I assume none of these are a concern, but I'd hate to be wrong and burn down my house... Oh, and does it matter if the insulation is paper up or paper down (I've got the stuff with paper backing on one side and batting on the other).Thanks again! Link to comment Share on other sites More sharing options...
Roofer Posted April 7, 2008 Share Posted April 7, 2008 Your chance of burning down your house started immediately. hahaKeep the paper away from anything warm. Insulation won't start a fire, but the paper will.Good luck with the budget and the project. Link to comment Share on other sites More sharing options...
Farmboy1 Posted April 8, 2008 Share Posted April 8, 2008 Make sure your can lights are rated for direct contact with insulation. Hot or Cold Water lines should be insulated before installation of sheetrock. You do not want condensation dripping on rock all summer. Easiest way to put in insulation is to staple paper to bottom of joists with the batt up. It should hold long enough for you to rock the lid.Good luck. Link to comment Share on other sites More sharing options...
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