Osb Roof Sheathing Material

When used as a roof sheathing this tendency to hold moisture means it can degrade faster than plywood when exposed to chronic leaks.

Osb roof sheathing material.

Both the national roofing contractors association and the asphalt roofing manufacturers association recommend the use of osb for roof sheathing as long as it bears. For pricing and availability. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should. That may not seem like a lot but when you are that close to the danger zone a 24 difference in permeability between final products is worthy of note.

With edge support and the same snow load 3 8 inch osb can be used. Plywood used for roof decking is typically called sheathing. Osb sheathing 18. Roof sheathing or decking is one of those elements.

Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. Click to add item lp flameblock 1 2 x 4 x 8 fire rated osb sheathing to the compare list. 2 perm 7 16 osb sheathing with a 30 perm wrb results in 1 88 perms. Click to add item lp prostruct 7 16 x 4 x 8 roof sheathing with silvertech to the compare list.

Osb takes longer to get wet than plywood but also takes longer to dry out. Common roof sheathing materials include several types which are chosen depending on the budget and weather conditions of the area. Suitability for roof sheathing. Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8.

When osb does get wet it also tends to swell along the edges and those edges stay swollen even after the material has dried out. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. 2 perm 7 16 osb sheathing with a 5 perm wrb results in 1 43 perms. A roof system consists of several elements working together to protect the home.

The most common materials for this are oriented strand board osb or plywood both formed of layers of wood bonded into a panel. For pricing and availability. Sheets of 7 16 inch thick with no edge support can be used in an area where the snow load is 30 pounds per square foot. Plywood and panel products.

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