Is it necessary to tape joints in under-slab insulation?
I'm putting recycled 4" XPS under my slab. Zone 6. Do the joints need to be sealed with anything? I'll put poly on top, under the concrete.
Posted Aug 11, 2014 8:08 PM ET
Edited Aug 18, 2014 4:57 AM ET
Other Questions in Energy efficiency and durability
I recently had a metal roof installed on my house and am wondering if it was installed properly. The roof was installed over two layers of shingles. The roof is over 20 years old with damaged and raised shingles. The contractor applied the metal directly