Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8.
Osb roof sheathing thickness.
Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively.
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 pricing and availability.
Page 6 of 7 v1 0 01 2008 osb roof design example calculations using asd 4x8 foot 24 16 teco sheathing span.
With this thickness any deflection under dead loads only the weight of materials only should prove to be imperceptible.
With edge support and the same snow load 3 8 inch osb can be used.
Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.
1 inch 25 4 mm.
Some roofers or manufacturers don t like to install over skip sheathing but i ve never had a problem with it locally.
Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8.
Thicknesses range from 5 16 to 3 4 inch and the proper one to use.
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.
Osb roof decking thickness 7 16 1 2 or 5 8 currently we space rafters 16 oc and use 7 16 osb with h clips.
Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones.
Allowable spans for lumber floor and roof sheathing a b for si.
Cdx works fine in 1 2 or 5 8 thickness.
Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7.