Replace subfloor?

robtrevino

Hi, I purchased a colonial townhouse about a year ago (25 years old). on the Third story there are two small rooms that have awful squeaking when you walk along the wall they share.

I tried using the Squeak-no-more screws but that didn't even alleviate the problem. Any ideas before I go and replace the sub-floor?

Thanks!

robtrevino

Any ideas people?

JazMan

Gee Rob,

You didn't even mention what type of subfloor you have, what type of flooring over the subfloor etc. Since you used squeak enders, can we assume there is carpeting on the floor? There's many other things we need to know.

Like; What is the relative humidity level up there?

Squeaks are caused by loose boards or plywood sheathing and sometimes by a weak joist.

Jaz

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robtrevino

Thanks for the reply. Indeed it's carpet. Moisture levels I guess are normal? I haven't used any type of kit to test it. But it doesn't seem to have a moisture problem. Why would it squeak near the shared wall though? Should I remove the carpet and take a look at it?

Jackofall1

To start you will have to take up the carpet, then get some good 1-1/4" screws and screw it, screw it good.

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Floor Doc

Any heater vents on those walls ?

robtrevino

I don't know. I would imagine not as the wall is fairly thin and the AC vents come out the floor. But I could be mistaken.

Jackofall1

Don't know what heater vents have to do with the picture, but I just went through this in a circa 73 townhouse, floors were terribly squeeky, I was putting down 3/4" T&G flooring. Before putting down any flooring I went through and screwed the sub-floor every 8", no more squeaks. Its been a year now and everything seems to be quiet, at least so far.

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Bud Cline

Is that wall an after-thought? What is under the location of the wall on the next floor below? Is that location supported down below?

Floor Doc

I seen them where they ran the duct work flush to the substrate between the joist Jack. and when you walked in that area squeak ,squeak .

robtrevino

Well, there's no wall underneath. The kitchen is on the floor below and it spans the length of both rooms. But I don't think it's an afterthought anyway because all my neighbors have the same layout.