Can I Use 7 16 Osb For Roof Sheathing

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.

Can i use 7 16 osb for roof sheathing.

Most roofs look fine yet some roofs show sag. Zip system wall sheathing and tape has been rated 1 in quality every year since 2015 in builder magazine s annual brand use studies. 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. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.

Is it improper installation. 7 16 cat ps2 10 osb sheathing application as 4 x 9. Typical framing details are to use 7 16 osb for roof framing on 24 centers. What is going on here.

I only use 1 2 osb on roof sheathing but the apa rating of the osb does allow for 24 centers now the fact that you are on 16 centers 7 16 would be fine although i probably would still use 1 2 out of habit. The 24 16 rating of 7 16 osb will pass code for any standard construction walls roof. With edge support and the same snow load 3 8 inch osb can be used. The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24.

A strong resilient roof is a home s first line of defense when the roof deck is exposed to weather. Common practice for a composition roof in n texas is with a roof deck of 7 16 osb and rafters at 24 o c. You don t need to worry about that. However there is a common reason to upgrade the thickness of the roof sheathing as explained above.

Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. Get free shipping on qualified osb panel sheathing subflooring 7 16 plywood or buy online pick up in store today in the lumber composites department. That is the job of the contractor and inspector.