Osb Or Plywood For Roof That Soans 32

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Osb or plywood for roof that soans 32.

With edge support and the same snow load 3 8 inch osb can be used. These panels include unsanded touch sanded and sanded plywood and oriented strand board osb. Apa rated osb sheathing roof panels performance category apa span rating allowable live load for roofs psf 3 8 24 0 30 7 16 24 16 40 15 32 32 16 70 1 2 32 16 70 19 32 40 20 130 23 32 48 24 175 1 1 8 48 oc 290 performance category replaces the nominal panel thickness live load for 24 oc span conditions. Get pricing and availability.

T and g common. The span rating of apa rated siding panels applies when installed vertically. Quality base layer for wall and roof sheathing applications. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.

Another issue that many people encounter is what size plywood the roof may need. Full face oriented strand board osb is a material with high mechanical properties osb is a material with high mechanical properties that make it particularly suitable for load bearing applications in construction. X 8 ft actual. The minimum plywood for roofing.

Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component. The span rating on apa rated sheathing panels appears as two numbers separated by a slash such as 32 16 48 24 etc a the left hand number denotes the maximum recommended spacing of supports when the panel is used for roof sheathing. However you might find that osb can better suit your needs than plywood for the roof. Plywood sheathing osb.

Ps 1 09 structural plywood form l870. Rafters run from the peak of the roof. For each combination of span and span rating loads are given for deflections of l 360. 19 32 cat ps2 10 osb sheathing application as 4 x 8.

Page 6 of 7 v1 0 01 2008 osb roof design example calculations using asd 4x8 foot 24 16 teco sheathing span. 10 psf dead load assumed. Both cdx plywood and osb tend to come in standard sheets of four foot by eight foot 4 8. 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.

While osb oriented strand board is generally cheaper than plywood it is heavier and not as stiff as plywood and can result in soft squeaky floors under weight the biggest complaint against osb is that it doesn t handle moisture very well so it is more suited for indoor use. Loads are provided for applications where the panel strength axis is applied across supports and applied parallel to supports. Fortunately this is one issue that has primarily been standardized by the industry. Span and exposure rated sheathing with dimensional stability.

So while exterior glued plywood can be used outdoors it works best.