We are getting new hard wood flooring installed and I expect to be putting shoe molding around the edge of the flooring. I am expecting a half inch to one inch gap between the back of the molding and the wall underneath.
Am I supposed to fill the gap behind with caulk or spray foam or something? I am afraid if I don't, I will have a gap that will be a freeway for insects and mice. If so, what kind of caulk or foam?
Best Answer
The gap is no different than before assuming the original install was good. Is this going over another floor or stripped down to the subfloor? You can use a backer rod stuffed into the back of the gap but generally you do not caulk the floor to the baseboard/shoe molding to allow for expansion and contraction of the floor