Osb 2 Or 3 For Shed Roof

Full membrane will just speed up the rot.

Osb 2 or 3 for shed roof.

The topic replacement shed roof osb or ply is closed to new replies. Direction of text should run in direction of span. The thickness of osb that you need varies on where it is used in a building. With edge support and the same snow load 3 8 inch osb can be used.

2 is ok but 3 better you don t say what thickness the floor needs to have air circualtion. Singletrack issue 132 is out now. Most osb suppliers have a load span table giving a guide to the spacing of timbers for different thicknesses. 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. My shed is osb with a layer of torch on roof felt been good for 10 years. 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. Juat lay dpc where there is ground contact.

Apple podcasts google podcasts android by email rss. Typically 3 4 18mm for floors and 3 8 9mm for walls and 1 2 11mm roof. Saturday 12th january 2013. For shed construction there are two commonly used grades of osb.

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. Thicknesses range from 5 16 to 3 4 inch and the proper. My solution when i built our garage was trusses on 19 3 center the canadian std and 5 8 osb. The roof has no waviness sag in it.

Typical markings on osb panel. Also make sure that you get your supporting timbers at the correct spacing. Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. I ve just about finished my double skin brick shed and i m about to do the roof.