Old Roof Sheathing

The anchor of the system that keeps water out the base onto which you nail your roofing the major part of the brace system for your trusses rafters a key piece of the stiffening system that protects your house from earthquakes and blasts of wind.

Old roof sheathing.

And if you re still wondering what roof sheathing is and what materials are typically used read on and satisfy your curiosity. The typical thickness range for sheathing is 3 8 to 3 4 inch. The new plywood thickness should be. After the 1960s the predominant residential roofing substrate became 1 2 cdx plywood.

Never attach roof sheathing with staples. If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing. Roof sheathing materials plywood. Comes in standard 4 by 8 foot sheets is strong.

The keyword here is solid it used to be standard to use shiplap 1 boards tongue groove or other boards for the roof deck. Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones. Open spaces form between the once tightly fitted shiplap boards. If you re in search of quotes for a roof sheathing job improvenet can put you in touch with up to four local contractors for free.

8d ring shank nails should be used instead. Putting a safe roof over your head isn t necessarily a one time deal. These 8 to 12 inch wide boards were nailed together tight. Sheathing should be a minimum of 19 32 inch thick.

Today a shiplap roof is usually 60 years old. Over time shiplap fir wood resin dissipates causing the boards to shrink crack form knot holes and become extremely brittle. The toh pros offer up their best advice for shingling properly sniffing out leaks and knowing when it s time to reroof an old roof. But can he simply install new plywood over the old.

As long as the new plywood itself can span the distance and carry the roof wind seismic and snow loads for your region adding new ply over old is just fine. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. As roofing contractors in seattle we are often asked why do we need plywood over our old solid sheathing.