Osb 2 Or 3 For Shed Roof

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 2 or 3 for shed roof.

Thicknesses range from 5 16 to 3 4 inch and the proper. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. Saturday 12th january 2013. 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. The thickness of osb that you need varies on where it is used in a building. Singletrack issue 132 is out now. Juat lay dpc where there is ground contact.

With edge support and the same snow load 3 8 inch osb can be used. Full membrane will just speed up the rot. The roof has no waviness sag in it. The topic replacement shed roof osb or ply is closed to new replies.

I ve just about finished my double skin brick shed and i m about to do the roof. Most osb suppliers have a load span table giving a guide to the spacing of timbers for different thicknesses. For shed construction there are two commonly used grades of osb. Typical markings on osb panel.

Also make sure that you get your supporting timbers at the correct spacing. The two grades of board look very similar and can only be distinguished visually by markings which are sprayed on to the board. Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. Up here in bonny scotland i ve seen many a roof with osb.

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. Direction of text should run in direction of span. Apple podcasts google podcasts android by email rss. My solution when i built our garage was trusses on 19 3 center the canadian std and 5 8 osb.