Osb Thickness For Shed Roof

Osb roof decking thickness 7 16 1 2 or 5 8.

Osb thickness for shed roof.

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. 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. 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 comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones.

A flatter roof with rafters farther apart may need a thickness of up to inch. The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24. Keep the 16 oc go with 1 2 osb and add an extra clip in each space. I m halfway though sheeting the roof of my shipping container shop and already need to redo some of it.

Watch this now to learn how to avoid this same pr. Osb is sold in 4 by 8 foot panels and the standard panel thickness for osb sheathing. Thicknesses range from 5 16 to 3 4 inch and the proper one to use. Keep in mind that the load of the roof still plays a role in the plywood thickness.

Plywood with similar properties currently costs about 30 more for an equivalent thickness. When this is the case experts recommend a 5 8 inch thick sheet. This manufactured wood product is composed of small wood chips that are arranged in layers and glued together. Many homes have rafters that are even wider at 24 inches apart and will require a thicker sheet of plywood.