Osb Board Thickness For Roofing

Currently we space rafters 16 oc and use 7 16 osb with h clips.

Osb board thickness for roofing.

With edge support and the same snow load 3 8 inch osb can be used. In germany both osb 3 and osb 4 are used for loadbearing purposes. Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8. If they are any thinner than that there can be a risk of swelling and warping.

Osb is widely used as roof decking material. I m halfway though sheeting the roof of my shipping container shop and already need to redo some of it. If you only intend to use boards as cladding for visual effect they can be relatively thin. The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24.

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. A homeowner recently wrote and asked me the following regarding osb roof decking. T g oriented strand board common. Osb roof decking thickness 7 16 1 2 or 5 8.

For the curious 7 16 osb has a span rating of 24 16 and with supports every 24 inches is good for a roof live load of 40 psf pounds per square foot with a 10 psf dead load. Thicknesses range from 5 16 to 3 4 inch and the proper one. Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. For pricing and availability.

A thickness of 18mm is adequate for non loadbearing uses in dry conditions. For pricing and availability. Using osb osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. Watch this now to learn how to avoid this same pr.

Oriented strand board commonly referred to as osb is a type of engineered lumber similar to particle board formed by adding adhesives and then compressing layers of wood strands. We re in dallas so we don t engineer for tremendous live loads for an asphalt shingle and we feel comfortable with 16 oc rafter spacing and 7 16 osb decking. I m contemplating upgrading to 1 2 or even 5 8 osb though to reduce roof sag hopefully to nil.