Osb Board Thickness For Roofing

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.

Osb board thickness for roofing.

For pricing and availability. Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8. For heavier loads a 40 20 rated panel 19 32 or 5 8 will support a 130 psf live load and 48 24 rated panels 23 32 or are good to175 psf. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.

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

A homeowner recently wrote and asked me the following regarding osb roof decking. X 95 75 in osb is a material with high mechanical properties osb is a material with high mechanical properties that make it particularly suitable for load bearing applications in construction. Currently we space rafters 16 oc and use 7 16 osb with h clips. In germany both osb 3 and osb 4 are used for loadbearing purposes.

If they are any thinner than that there can be a risk of swelling and warping. 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. 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. T g oriented strand board common.

Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. 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. I m contemplating upgrading to 1 2 or even 5 8 osb though to reduce roof sag hopefully to nil. The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24.

If you only intend to use boards as cladding for visual effect they can be relatively thin. With edge support and the same snow load 3 8 inch osb can be used. A thickness of 18mm is adequate for non loadbearing uses in dry conditions.