Osb Roof Sheathing Thickness 16 Oc

The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24.

Osb roof sheathing thickness 16 oc.

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. Is 1 2 osb okay for a standing seam roof and other roofing materials or is 5 8 preferred. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. Spacing in inches for roof sheathing.

This is probably one of those posts that opens up the floodgate for debate but pushing that aside. Am i ok using 7 16 osb for sheathing on roof and walls 16 oc framing. The cabin is just 440 sf and is in zone 6. A panel marked 32 16 may be used for roof sheathing over supports spaced up to 32 inches o c.

With edge support and the same snow load 3 8 inch osb can be used. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively. Can someone direct me to blogs or q a titles that address roof sheathing thickness. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7.

Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. The second number is the maximum o c. Or for floor sheathing over supports spaced up to 16 inches o c. Thicknesses range from 5 16 to 3 4 inch and the proper.

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. 7 16 cat ps2 10 osb sheathing application as 4 x 8. My cabin trusses will be 24 oc and i will use either 1 2 or 5 8 osb sheathing and a standing seam metal roof. Find osb sheathing osb at lowe s today.

Click to add item 7 16 x 4 x 145 1 8 osb oversized wall sheathing to the compare list compare click to add item 7 16 x 4 x 145 1 8 osb oversized wall sheathing to the compare list add to list click to add item 7 16 x 4 x 145 1 8 osb oversized wall sheathing to your list. The span rating on floor span panels appears as a single. Am i ok using 7 16 osb for sheathing on roof and walls 16 oc framing. Support spacing when the panel is used for subflooring.

Currently we space rafters 16 oc and use 7 16 osb with h clips. 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. Just would like to know if it is acceptable from a strength standpoint that s all. Find a store near me.

Skip to main content. I m contemplating upgrading to 1 2 or even 5 8 osb though to reduce roof sag hopefully to nil.