Osb For Shed Roof Thickness

The osb thickness will be based on the rafter spacing.

Osb for shed roof thickness.

Good enough for houses good enough for a shed. Currently we space rafters 16 oc and use 7 16 osb with h clips. Bo remember if the women don t find you handsome they should at least find you handy. With edge support and the same snow load 3 8 inch osb can be used.

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. The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24. I m contemplating upgrading to 1 2 or even 5 8 osb though to reduce roof sag hopefully to nil.

Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. 7 16 will be fine for 16 on center and 5 8 for 24 on center rafters. I m halfway though sheeting the roof of my shipping container shop and already need to redo some of it. Osb is fine all the way around.

Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. 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. Thicknesses range from 5 16 to 3 4 inch and the proper one to use. Osb is sold in 4 by 8 foot panels and the standard panel thickness for osb sheathing.

This manufactured wood product is composed of small wood chips that are arranged in layers and glued together. 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. 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. Watch this now to learn how to avoid this same pr.