Can new plywood be installed on a 40-year-old roof without removing the old? Roy Gingrich of Ellicott City has a 40-year-old house with an asphalt shingle roof surface. The existing asphalt shingles ...

Q. This week: I had my roof sheathing replaced a year ago; it was plywood and had delaminated. The contractor thought it might have been due to excess moisture in the attic. This winter, I went up ...

Q. I'm trying to educate myself about new construction, as I'm thinking of building a new home. I see carpenters nail on large sheets of wood onto the wall studs. What's the purpose of this funny ...

Q. Lately I've seen roofers install a strange product that looks like traditional felt paper, but it's not. It has a peel-away backing paper, and this material sticks to the wood sheathing. What is it ...

In this video, I discuss the installation of the Georgia-Pacific ForceField Weather Barrier System for the roof of my new ...

Clay tiles have been in use for many years and are still installed in both residential and commercial applications. Clay tiles differ from concrete in regards to weight, attachment methods and the way ...

Q: I’ve seen roofers installing a product that looks like traditional felt paper, but it’s not. It has a peel-away backing paper, and this material sticks to the ...