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 ...

Last week, a reader asked our opinion about insulating his crawl space and doing a little earthquake retrofitting under his San Mateo home. We recommended that he install batt insulation between the ...

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 ...

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 ...

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 ...

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 ...

In this episode, we cover roof rafters with plywood sheathing and install roof anchors for safety while working 15 feet up. We also begin framing the gable ends of our tiny log cabin, which is built ...

This photo shows sheathing on under-construction homes in Wake County. House Bill 488 prevents local governments from requiring builders to have sheathing, which ties a home’s frame together, ...