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Kamie,

One thing to look out for when putting the floor back and using mat is air pockets between the floor and mat. I attempted to put a 2 x 3 panel back by putting a layer of CSM over the foam, some mash, then the panel. As it cured, a large air pocket developed between the panel and CSM. I had to remove it and start over. It was weighed down with only about 30 lbs.

I haven't attempted to put it back yet and am trying to figure out a good way to do it. I am thinking I will add a thin layer of foam, for-go the CSM, put down a thick layer of mash, put the panel down with a very heavy weight (at least 60 lbs) so that the mash pressed out all edges.

What is your plan for putting back the floor?