How Thick Should Osb Be For Roofing

The typical thickness range for sheathing is 3 8 to 3 4 inch.

How thick should osb be for roofing.

With this thickness any deflection under dead loads only the weight of materials only should prove to be imperceptible. An exception to this standard however may occur if you intend to install slate concrete or tile shingles on your roof. Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. Thicknesses range from 5 16 to 3 4 inch and the proper.

Osb roof decking thickness 7 16 1 2 or 5 8 if were using osb we get 9 16 we dont worry about getting both 7 16 and 9 16 for walls then the roof we just get all of the same. That will suffice on a roof with. The thickness required by josh s. Oriented strand board osb vs plywood family handyman osb roof sheathing panels georgia pacific blue ribbon 8 tips for getting the best out of your oriented strand board osb which way should you install osb on a roof norbord north roofing plywood sizes material options thickness calculations osb oriented strand board common 15 32 in x 4 ft 8 actual.

Standard roof sheathing which consists of 4 by 8 sheets of plywood or oriented strand board or osb is 1 2 inch thick and attaches directly to the roof rafters or the roof trusses. 8d ring shank nails should be used instead. The most common materials for this are oriented strand board osb or plywood both formed of layers of wood bonded into a panel. A roof that lays practically flat will have a much heavier load than a steeper roof that allows rain snow and ice to roll right off.

Sheathing should be a minimum of 19 32 inch thick. Never attach roof sheathing with staples. This way no worrying about grabbing scraps to fill in small spots and not having the correct thickness. However you may need to consider bolstering the plywood thickness for a roof that has a higher load.

At least 3 8 inch thick.