Installing Continuous Flashing
Code specialist, Glenn Mathewson, takes a look at a recent IRC provision allowing...
Damage From Roof Moss
That green growth on your roof might be causing expensive damage to many parts of...
Unvented Roofs and Shingle Warranties
While the IRC has approved the use of certain "hot" unvented attics, it seems that asphalt-shingle manufacturers still recommend that their shingles be installed over vented roof assemblies. Does this mean that shingle manufacturers will void their warranties if the roof deck is insulated with sprayed-in-place foam?
Why Paper a Roof?
Q.What is the purpose of tar-papering a roof other than to keep water out until the shingles are laid down? It seems that if water does get past the shingles that the tar paper, having all of those staple and nail holes, would do little to keep the water out.