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Old 05-25-2011, 10:45 AM   #1
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Subfloor Expansion and Contraction


It seems to be standard practice to leave about a 1/8" or so gap between subfloor panels to allow for expansion and contraction. Is this true when you use a subfloor adhesive? The reason I ask is that I just read an article that states you should not use an adhesive on wall and roof sheathing because it prevents necessary expansion and contraction and may lead to the buckling of the panels. I realize that a floor system may not be subject to the same moisture issues of walls and roofs. But it just seems the subfloor adhesive would make the gap unnecessary since it will prevent almost all expansion and contraction. (This is just a question mostly out of curisoty since it is no effort just to put in the gaps and not worry about it)

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