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 ...

Learn how to properly install plywood sheathing on a shed, step by step. This guide covers everything from material selection ...

Q: I need a new roof and am in the process of getting estimates. Currently there are three layers of shingles, which I am told is the limit. I can't decide whether to tear off the entire roof, adding ...

As a builder and flooring installer, I’ve learned the benefits of oriented strand board (OSB) and have often used it as a cost-effective alternative to plywood for sheathing and subfloors. The ...

Structural I, also referred to as “STRUC I,” may be OSB or plywood and is, essentially, a subcategory of APA Rated Sheathing. Panels designated Structural I must meet all of the manufacturing and ...

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. 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 ...

Weather conditions threaten the structural integrity of every build, from single-family homes to multi-family projects. Residential and light commercial builders alike are looking for a more advanced ...