Osb Size For Shed Roofing

In this case add 150 to get a total of 900 square feet.

Osb size for shed roofing.

Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. Even though plywood is more expensive and osb stronger my recommendation for a shed roof is 5 8 or 3 4 construction grade exterior rated cdx t g plywood. The lower the slope the more weight for snow load but less wind force. New homes will usually see a few rainfalls before a roof is on and as noted above osb doesn t handle moisture well.

The main floor area is 600 square feet and the wing floor area is 150 square feet. Despite its common use as such we don t recommend using osb for subfloors but that s really just for aesthetic reasons. 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 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.

Divide that by 32 to get the number of sheets needed. The higher the slope the more quickly the snow and rain will be shed but also the greater the wind force. With edge support and the same snow load 3 8 inch osb can be used. Make sure that you add for the slope of the roof.

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. This manufactured wood product is composed of small wood chips that are arranged in layers and glued together. So i will try and simplify what you need to know. Thicknesses range from 5 16 to 3 4 inch and the proper one to use.

It is a long document with many parts and subsections. For pricing and availability. Osb is sold in 4 by 8 foot panels and the standard panel thickness for osb sheathing. Adding 20 is industry practice.

For pricing and availability. The most common uses are for sheathing in walls flooring and roof decking. In the case of a subfloor deformations left in the osb after it dries can lead to wavy flooring. The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24.

For shed construction there are two commonly used grades of osb. Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8. A viable alternative to plywood this osb board is engineered to prevent any cupping warping or splitting. Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones.

Oriented strand board osb is a material with high mechanical properties that make it particularly suitable for load bearing applications in construction.