Roof Plywood Too Short

Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component.

Roof plywood too short.

The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing. What is plank sheathing. Plank sheathing usually 1 6 or 1 8 was used as a roof deck before plywood. Longer screws would come through the surface of the shingles where the roof could.

Rafters run from the peak of the roof. 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. The minimum plywood for roofing.

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. Installing plywood on a roof hello youtubers here s another video about plywood sheathing and composition shingles after replacing all damaged wood and. A structure s roof truss spacing can vary from every 12 to 24 inches. When it s too thin.

If the plywood thickness is less than or the osb less than 7 16 it is going to be weak with the roof rafters spaced the standard 2 on center.