Osb Over Old Roof

However you might find that osb can better suit your needs than plywood for the roof.

Osb over old roof. Anyone aware of code or other issues inherent in this approach. Sometimes they use a standard gardener s potato fork but the best tool for the job is a red ripper integrated roofing technologies 2413 stevenage dr unit 11. I m halfway though sheeting the roof of my shipping container shop and already need to redo some of it. Over time shiplap fir wood resin dissipates causing the boards to shrink crack form knot holes and become extremely brittle.

Both cdx plywood and osb tend to come in standard sheets of four foot by eight foot 4 8. I m going a reroof in two weeks time where we are removing all the old roof covering and the old sheathing delaminated and rotted 3 8 plywood and replacing it with new 5 8 t g plywood. Can new plywood be installed on a 40 year old roof without removing the old. Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.

Open spaces form between the once tightly fitted shiplap boards. After the 1960s the predominant residential roofing substrate became 1 2 cdx plywood. Oriented strand board isn t plywood nor is it a type of particleboard fiberboard or wafer board and although it is a newcomer to a plywood. I have not been able to locate anything that addresses this point.

Roy gingrich of ellicott city has a 40 year old house with an asphalt shingle roof surface. Because of its construction some manufacturers actually make larger sheets of osb. Before you reshingle a roof read our step by step guide for adding new shingles over old ones. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.

Can oriented strand board osb be used for roofing. The existing asphalt. Fortunately this is one issue that has primarily been standardized by the industry. Today a shiplap roof is usually 60 years old.

Watch this now to learn how to avoid this same pr.