Osb 2 Or 3 For Shed Roof

The thickness of osb that you need varies on where it is used in a building.

Osb 2 or 3 for shed roof.

Saturday 12th january 2013. I m thinking about putting another layer of osb on top of the insulation before i finally lay a single sheet epdm on top. Juat lay dpc where there is ground contact. Also make sure that you get your supporting timbers at the correct spacing.

My shed is osb with a layer of torch on roof felt been good for 10 years. With edge support and the same snow load 3 8 inch osb can be used. The topic replacement shed roof osb or ply is closed to new replies. Typical markings on osb panel.

Apple podcasts google podcasts android by email rss. Most osb suppliers have a load span table giving a guide to the spacing of timbers for different thicknesses. I ve just about finished my double skin brick shed and i m about to do the 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.

Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. 2 is ok but 3 better you don t say what thickness the floor needs to have air circualtion. Typically 3 4 18mm for floors and 3 8 9mm for walls and 1 2 11mm roof. Singletrack issue 132 is out now.

Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. The two grades of board look very similar and can only be distinguished visually by markings which are sprayed on to the board. 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.

Direction of text should run in direction of span. The roof has no waviness sag in it. 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. Thicknesses range from 5 16 to 3 4 inch and the proper.