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I am about to lay a new hardwood floor over and older floor. I removed the old linoleum and nailed down a fresh layer of underlayment. All is nicely level. I’ve heard that one should put a layer of black roofing felt on the floor before nailing on the wood — to reduce noise and future squeaks. Is this necessary—-or desirable?
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Yes, it's recommended and desireable...unless you have RFH. If your floors are heated, red rosin (or even kraft) paper is an alternative material.
Here's a link to NOFMA that should provide answers to all of your questions.
Good luck!
*My two cents, I always use rosen paper under hardwood. the reason is to let the wood move with seasonal changes. felt paper is too stickly and I'd worry that the floor might stick too much in the heat of the summer and amke a noisy floor. Just my opinion, 'cause I've never used Tar paper/ felt
*Use the 15 lb. felt like the rest of us National Wood Floor Association members. Members are world wide. GW
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I am about to lay a new hardwood floor over and older floor. I removed the old linoleum and nailed down a fresh layer of underlayment. All is nicely level. I've heard that one should put a layer of black roofing felt on the floor before nailing on the wood -- to reduce noise and future squeaks. Is this necessary----or desirable?