I am a builder in the NW and with the extremely wet winter that we have been having I have a problem with swelled plywood decking on a home that I have under construction. The roof is on and we are now ready for insulation.
The problem that has surfaced is that the 3/4 T&G plywood has swelled between each joist at the seams. I have heat going in the crawl to help dry the plywood but it doesnt look like the seams are going to lay back down. The solution that I have come up with is to go into the crawl and install some scraps between the joists at the seams and then screw the plywood down from above into the sleepers. Does anyone know of a better solution or idea?? Thanks
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most of the flooring subs I've worked with carry an edger along with them to sand down raised plywood seams you descibed. No big deal.
thats all i do edger
What kind of heat?
Propane or oil burners can add more moisture to the interior than they drive out
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I am using a 50 amp 220 electric space heater. I know that propane will put as much moisture or more into the space than it gets rid of.
Run the heat under it then, and a fan over it, and wait 'till it's dry to grind it flat again. Then seal it.
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When I built my house I had the same problem and used a power plainer and they all turned out great. Flatter then when I originally laid the t&G.
Did you put plastic down on the crawl floor? If not, the heat is probably just evaporating moisture out of the soil and letting it soak into the decking more.
happy?