Osb 2 Or 3 For Shed Roof

For shed construction there are two commonly used grades of osb.

Osb 2 or 3 for shed roof.

Apple podcasts google podcasts android by email rss. 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. Juat lay dpc where there is ground contact. The topic replacement shed roof osb or ply is closed to new replies.

Most osb suppliers have a load span table giving a guide to the spacing of timbers for different thicknesses. Also make sure that you get your supporting timbers at the correct spacing. 2 is ok but 3 better you don t say what thickness the floor needs to have air circualtion. My plan is for a warm roof so i m going to lay the 18mm osb3 then a vapour barrier followed by 100mm celotex insulation boards.

Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. The roof has no waviness sag in it. Saturday 12th january 2013. Direction of text should run in direction of span.

I ve just about finished my double skin brick shed and i m about to do the roof. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. The thickness of osb that you need varies on where it is used in a building. Typical markings on osb panel.

With edge support and the same snow load 3 8 inch osb can be used. My shed is osb with a layer of torch on roof felt been good for 10 years. My solution when i built our garage was trusses on 19 3 center the canadian std and 5 8 osb. Up here in bonny scotland i ve seen many a roof with osb.

I m thinking about putting another layer of osb on top of the insulation before i finally lay a single sheet epdm on top. Singletrack issue 132 is out now. The two grades of board look very similar and can only be distinguished visually by markings which are sprayed on to the board. Thicknesses range from 5 16 to 3 4 inch and the proper.