We had intended to lay a laminate floor in our dining room which includes an under stair cupboard previously used for storage. We laid plywood over the old chipboard floor with PVA and screws. Since then we have been getting an unpleasant odor from the cupboard area but nothing from any of the rest of the floor. We have now lifted the plywood in the cupboard to try and find the source of the smell. We have sealed the area with PVA but still the smell occurs.
When we pulled up our living room rug to put in laminate we discovered that our cats accidents still made the sub-floor smell. Our installer said he comes across this problem often and that we should paint the whole sub-floor with Kilz, It is very thick and takes a while to put on, but this solved the problem completely and we now are enjoying our new Pergo flooring.
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