Years ago, when I was still a pup carpenter, plywood was the king of both wall sheathing and roof sheathing. OSB sheathing has now pushed plywood to the back buildings of the lumberyards.

Bucking the Trend OSB has been used for sheathing in construction for decades since it was invented in 1963. Since then, OSB has gained popularity, extensively utilized for wall sheathing, floor ...

Next, furring strips, usually 2x2 inch lumber, are nailed to the roof directly over the existing rafters and old sheathing. The furring strips run vertically up the roof, not horizontally.

Dear Angie, Is it OK to install a new roof while it’s raining? I’m having a new roof installed over 20-year-old (Oriented Strand Board) sheathing. It started raining during the install.

Years ago, when I was still a pup carpenter, plywood was the king of both wall sheathing and roof sheathing. OSB sheathing has now pushed plywood to the back buildings of the lumberyards.

That said, pros say a new roof should never be installed over wet wood or a wrinkled barrier. Doing so goes against the building codes in most communities, and the shingles won’t adhere.

After OSB is nailed to rafters or trusses on a roof (or, as in your case, to the existing solid wood sheathing), it can swell as it picks up moisture from the air and from the attic below.

Radiant barrier sheathing typically consists of a structural OSB (oriented strand board) panel with a layer of aluminum adhered to the surface. Some radiant barrier panel manufacturers purchase ...

Looking upward, black-colored mold was noticed on the OSB roof sheathing (plywood). The inspector quickly looked around and saw moisture on all the cold surfaces, with moisture dripping down into ...