Roof Plywood Too Short

Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets.

Roof plywood too short.

If the roof dips here and there because of the thin plywood the 1 8 jump may no be so bad in the mix of it all jack jul 26 16 at 4 24 here in snow country 1 2 osb is standard with 7 16 being common for walls. Plank sheathing usually 1 6 or 1 8 was used as a roof deck before plywood. Most of the time this type of repair is unsuccessful because the screws used to secure the plywood are too short. When it s too thin.

What is plank sheathing. A structure s roof truss spacing can vary from every 12 to 24 inches. Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component. The minimum plywood for roofing.

Longer screws would come through the surface of the shingles where the roof could. But with the old plywood left in place it will be considerably more difficult to locate the rafters to ensure proper nail. 30 years on it s working out fine. Installing plywood on a roof hello youtubers here s another video about plywood sheathing and composition shingles after replacing all damaged wood and.

Rafters run from the peak of the roof.