Osb 2 Or 3 For Shed Roof

The two grades of board look very similar and can only be distinguished visually by markings which are sprayed on to the board.

Osb 2 or 3 for shed roof.

Singletrack issue 132 is out now. The roof has no waviness sag in it. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. Typical markings on osb panel.

My solution when i built our garage was trusses on 19 3 center the canadian std and 5 8 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. 2 is ok but 3 better you don t say what thickness the floor needs to have air circualtion. The topic replacement shed roof osb or ply is closed to new replies.

With edge support and the same snow load 3 8 inch osb can be used. Thicknesses range from 5 16 to 3 4 inch and the proper. Juat lay dpc where there is ground contact. Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones.

My shed is osb with a layer of torch on roof felt been good for 10 years. Up here in bonny scotland i ve seen many a roof with osb. Saturday 12th january 2013. Direction of text should run in direction of span.

Full membrane will just speed up the rot. 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. For shed construction there are two commonly used grades of osb. I ve just about finished my double skin brick shed and i m about to do the roof.

Around here southern mn the cities you can drive through the neighborhoods with cheaper houses the ones with trusses on 24 centers and 1 2 or 7 16 sheeting and most many will have sagged roofs. Typically 3 4 18mm for floors and 3 8 9mm for walls and 1 2 11mm roof. 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. The thickness of osb that you need varies on where it is used in a building.