Osb3 For Shed Roof

Find osb sheathing osb at lowe s today.

Osb3 for shed roof.

Bitumen paint is no different to felting it for shed roofs. Osb3 is used more for the building envelope where there is a possibility of leakage or condensation occurring. One of the nice things about plywood is the variety of options you can buy. Osb 3 is suitable for external use is fully structural whereas much plywood isnt despite what people think.

One point that i found interesting was that the national house building council nhbc only permit the use of osb3 for sheathing to walls floors and roofs. I presume that this is as a result of poor experience with using osb2. So long water or sunlight doesn t make direct contact it ll be fine. Osb3 is just as good as regular shuttering ply.

Can oriented strand board osb be used for roofing. Oriented strand board isn t plywood nor is it a type of particleboard fiberboard or wafer board and although it is a newcomer to a plywood. Lay sheets in rows with the long edge horizontal to the roof bottom. If there s a will there s always a way.

Up until 2000 plywood held the majority of the market for wall roof and floor sheathing when it was surpassed by osb which as of 2018 held about 75 of the market share. Provide a 1 8 inch gap. It wont delaminate if it gets wet its cheaper. Just remember to cover your fixing screws with it after or water will find its way in via screw fixings.

I roofed my stable with 11mm sheets covered with cheap shed kennel felt three years ago. The minimum osb panel size is 24 inches in any direction and each sheet end must rest on a rafter. There are pressure treated grades marine grades that can be used in water fine hardwood.