subfloor problem

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Old 04-05-11, 04:12 AM
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subfloor problem

I have a small ranch 26X42, The floor between the livingrood and the kitche has always made noise. The builder put in an other 2X8 under it but still mades noise, now after 20 yrs. I have tried putting form between it. I have tried swrewing it down no luck. My only thing I can think of now is to take a saw cut out the area and redo it... Or is there something I am not thinking of? Anyone Please We want to redo the kitchen floor but want this fixed right and for good before we go and put anything new down...
 
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Old 04-05-11, 04:19 AM
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Sorry I did all that a bit too fast.
The form I put in was between the subfloor and the joist.
I srewed it down from the top of the floor.
I did have one thought could it be that it is from bewteen the luon and the subfloor?
We are just tried of crack every time you walk on it....
 
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Old 04-05-11, 06:20 AM
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What did they use for a subfloor? Louon is no longer an exceptable subfloor for anything but carpet. It causes glue reliece and staining if it's to be a sheet linolium floor. If you plan on tile it's all got to come out and at least 3/8 A/C plywood layed down making sure not to have the seams line up.
How did you screw the subflooring down if there's louon covering up the nails in the subflooring?
How long a span do these floor joist run. A 2 X 8 is only good for about 12', and even that would be pushing it.
Was the louon nailed every 4" on the outsides and every 6 to 8" in the field?
 
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Old 04-06-11, 04:08 AM
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I have 3/4 t/g. with luon on top for the kitche floor. That is why I was thinking it may just be the noise is coming from between the luon and the T/G 3/4"???? As you can see from above I have tried just about everything else.....
 
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Old 04-06-11, 08:37 AM
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Is the subfloor 3/4 T&G plywood, or planking? If it is plywood, it could have been left uncovered too long during construction, either before or after installation and the ply layers could have come partially separated from moisture damage, especially if the home was built during winter months, or times of severe rain. It can happen. The fact that it has always been this way makes me think this could be something to consider. Even 20 years ago many builders went from nails to screws and adhesive for subfloors to help eliminate these kinds of annoying issues. With the luan covering it all it maybe difficult to know what was done in regards to nails/screws. You may end up needing to cut and pull it off and replace it as you mentioned.
 
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