Can I put foam board insulation on top of one floor and lay another floor on top of it?
I have a enclosed porch that I am trying not to crawl under to put insulation. I also want to make the floor level. So I want to know if I put foam board insulation on top of the old floor and level the new floor, will the new floor keep the cold out?
Posted Nov 25, 2012 1:16 PM ET
Edited Nov 25, 2012 5:47 PM ET
Other Questions in GBA Pro help
Do you recommend closed or open-cell spray foam on roof sheathing in a finished attic space in Chicago that incl. HVAC system?