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Old 09-09-2007, 12:38 AM  
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Default converting garage into family room

We have a garage that we are going to be converting into a family room. The problem is the floor, I would like to raise the floor about 6 inches. Believe me its very low compared to the inside of the house. Either way its still going to be a step down from the main floor, After its raised. I would like to use a floating floor of some type on the concrete. I was told we should just build a frame on the concrete a put the flooring on it. I need this to be done right any ideas we be appreciated

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Old 09-09-2007, 11:23 AM  
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Hello Dbear92:

I would place a seamless cover of black 6 mil plastic that laps up on the sides to be cut off after the floor is in. Wood and masonry or concrete just don't mix. I might also consider using treated 2 X 6 joists and fill the cavity with insulation. Then I would use tounge and groove, underlayment grade OSB glued and screwed (be sure to glue the t & g too, to eliminate all squeaks).

From there you can install any floor covering you choose. I wish you the very best with your project.

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Old 09-12-2007, 07:07 PM  
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Default Hmmm

Just a little helper with the insulation.

Try to use the rigid Styrofoam board insulation if you can, it does not get wet or moldy and it has a better insulating value or R rating.
Also make sure you let the joists dry out with a dehumidifier and a fan for a couple of days before you install the plywood. Sometimes the wood is wet and needs to totally dry or you end up with more issues.

Enjoy your room.
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