Osb Thickness Roof

He is president of isaiah industries an organization recognized as one of the world s leading metal roofing manufacturers.

Osb thickness roof.

Most roofs are spaced at least 20 inches apart. Thicknesses range from 5 16 to 3 4 inch and the proper one to use. 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.

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. However you might find that osb can better suit your needs than plywood for the roof. 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.

Do not do anything that might later void the wind warranty they offer. This riding arena was built using swiss krono osb f 15mm thick for the roof and 18mm thick for the walls. Fortunately this is one issue that has primarily been standardized by the industry. Both cdx plywood and osb tend to come in standard sheets of four foot by eight foot 4 8.

Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. 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. 25mm thick swiss krono osb 3 as a walkable subroof surface. Todd miller has spent his entire career in the metal building products manufacturing industry.

For this you can either go for a half inch or 5 8 inch thick sheet. 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. The roof of a riding arena made with strong panels consisting of 18mm thick swiss krono osb f. Another issue that many people encounter is what size plywood the roof may need.