I've laid plywood flooring over chipboard in the kitchen. It's all screwed down but wondered what I should be sealing the joins between the sheets of plywood with - if anything. I'm putting vinyl flooring on top. The screws that I've used have gone beneath the surface of the plywood so they're not sticking up at all but I did wonder if some kind of filler should be put on top of the screw heads just to level them off?
thanks
thanks