I have some water damage to the subfloor underneath my tile. I pulled up the tile to exposed the water damaged area. My intention was to cut out the damaged area replace it and put the tile back.
I drilled a hole in the subfloor (I am not sure this is the correct term) and it appears to be 2 sheets of 3/4" plywood. My question is do I need to cut through both sheets, or can I just remove one layer?
I will use a circular saw to cut the floor. Any suggestions on how to cut the floor next a wall or in a tight corner?
You can cut through one at a time and see what the second layer looks like. Set the blade depth a shade under 3/4".
As far as the corners and close to the walls, a circular saw won't do it. If the subfloor is rotten that close to the wall you will have to use a demo saw, in which case you won't be able to cut through just one layer.