Am I OK to lay down my plywood subfloor at 19% moisture content?
I tested all of my 4×8 cdx plywood in the middle of the 5 sheets, and 2 pieces are at 19% moisture content (the rest are between 10-17%).
Should I go buy 2 new pieces or am I too concerned over the moisture content? I was reading that anything near the 20% range is way too high for plywood.
I purchased these 3 weeks ago and have been stacked in my shed. I did not test when I first purchased but I certainly would assume that they would be dryer.
Also, please see the pictures below. Does this look like water damage or mold? These are the two pieces that measured higher.
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