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floorman, thanks for the reply...why would I cut up the plastic into squares? when I have a 3'x100' roll. Wouldn't I just lay it out as it is and tape the seams?
Also, I forgot to mention that I already know that the floor is damp, mostly in the summer due to a high water table in the area.
That is why I was thinking of putting the 3 mil plastic down, tape all the seams, and then put down the plywood. My thoughts are that the moisture would stay below the plastic, keeping the plywood intact and dry.
But also one of my questions is if I did that method, the plywood would not be screwed/glued to the floor. Is there a chance that it might bow up and have a space between the plastic and plywood? Or would the weight of the tile keep it all the way down?
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