Thicknesses range from 5 16 to 3 4 inch and the proper one to use.
Osb roof sheathing size.
7 16 cat ps2 10 osb sheathing application as 4 x 8.
That s considered to be the minimum.
Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.
Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively.
T g oriented strand board common.
X 95 75 in 920924 the home depot.
T g oriented strand board common.
1 inch 25 4 mm.
Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones.
Tandg oriented strand board is ideal for subfloor construction and structural usage in humid conditions.
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Roof sheathing attaches to the surface of the rafters or trusses to form the structural skin of the roof.
Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7.
Roof sheathing thickness unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick.
This minimum will only work if the rafters are set 16 inches apart at most and if the roof doesn t have too much load.
With edge support and the same snow load 3 8 inch osb can be used.
It spans the rafters to support the roofing and in the case of panel sheathing such as plywood or osb it acts as a diaphragm with the walls to resist horizontal loads.
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