Old Roof Sheathing

As roofing contractors in seattle we are often asked why do we need plywood over our old solid sheathing.

Old roof sheathing.

Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones. Sheathing should be a minimum of 19 32 inch thick. But you must take care to install shingles correctly so they lie flat. If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing.

The typical thickness range for sheathing is 3 8 to 3 4 inch. Comes in standard 4 by 8 foot sheets is strong. The anchor of the system that keeps. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood.

This old house general contractor tom silva prefers this route even when the roof is just a single layer so he can find the source of any water. 8d ring shank nails should be used instead. 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. The keyword here is solid it used to be standard to use shiplap 1 boards tongue groove or other boards for the roof deck.

We plan to replace the roofing on our 100 year old house with architectural asphalt shingles that can stand up to the occasional hurricane we get around here. Roof sheathing the material nailed to your trusses or rafters to which your roofing is attached is your roof s workhorse. This guide was developed and edited for old homes from original material in the u s. Never attach roof sheathing with staples.

Plywood is a bit more expensive but is usually. But can he simply install new plywood over the old. And if you re still wondering what roof sheathing is and what materials are typically used read on and satisfy your curiosity. Wha to do with old roof sheathing photo by kolin smith.

Roof sheathing or decking is one of those elements. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. While we re at it should we also take off the roof s original board sheathing which is still sound and replace it with plywood. Roof sheathing materials plywood.

Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof.