Forum Archive: Posts by: sobers3

I have wide plank pine flooring attached directly to the floor supports. The previous owners had plywood and carpeting covering the pine. The basement has a moisture problem and has a french drain with a sump pump. During a heavy rain, a river of water feeds into the pump, so moisture is a problem. I would like to remove the plywood and refinish the wide plank pine floors, but will need to insulate from underneath to keep out the moisture and musty odor. Would I be able to attach foam board such as Dow Tuff to the underside of the floor between the floor supports?