PuddyCat
Member
I’m installing 18mm plywood sheets to a summerhouse floor frame. It will be glued down to reduce squeaking and then screwed into place.
I have read that I need to leave a 2mm gap around each board to allow for expansion. To stop the gap causing draughts is it acceptable to fill the gap with caulk or flexible silicone? Or would defeat the object of the expansion gap?
I have read that I need to leave a 2mm gap around each board to allow for expansion. To stop the gap causing draughts is it acceptable to fill the gap with caulk or flexible silicone? Or would defeat the object of the expansion gap?