Author Topic: second floor new underlayment  (Read 2115 times)

bill672

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second floor new underlayment
« on: July 28, 2010, 10:45:43 PM »
My second floor is made up of 2x6 tongue and groove nailed onto beams four feet apart. This make for a nice ceiling below, but airborne sound transmission is a problem.

I'm planning on adding a 3/8" plywood underlayment upstairs, then carpeting over that. I'm considering the tongue and groove boards to be the subflooring.

What would be the best way to add soundproofing to the floor? I've thought of a layer of cork between the tongue and groove and the new underlayment to isolate them. Is that a good idea? Is there a better way to isolate the new underlayment? Is that even a good idea?

I'm also thinking of MLV under the carpet padding.