@William 1 posted:You said you used 1/2” oak plywood under the homasote, is that correct. I question why you would do that, first of all it’s very expensive and it is finish grade plywood, like for cabinets, not meant to be used as an underlayment. I wonder if the glue you used didn’t adhere so well to it.
You can prob fix your issue with some well placed screws I would think. Kerf the homasote if necessary. It’s fixable.
Well, I used 1/2" Baltic Birch multi-ply for my 12 x 24 platform build, it turned out to only cost a little more than $100 over the cost if I had used 1/2" good one side plywood. The Baltic Birch was a pleasure to work with, and it doesn't warp at all!
