How To Foam Insulation Board - YouTube
20 Jul 2012 founder, Tim Carter shows how to use Dow closed cell foam insulation board to insulate the floor of an outdoor s I have about a 3 foot space between the deck and the natural ground. . how to? You did not show anything other than your wood supports.? #57 gravel on a workshop I am building, the building will be on beams on concrete blocks so there will be an open air space.?.