For the curious 7 16 osb has a span rating of 24 16 and with supports every 24 inches is good for a roof live load of 40 psf pounds per square foot with a 10 psf dead load.
Osb board used for roofing.
Moisture resistance and problems.
Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.
There s a variety of diy projects that osb is fantastic for and you can use it for both interior and exterior use as it s weather resistant check for a stamp on the back of the board to make sure.
But for a creative person or carpenter osb can be used to create a multitude of different.
Because of the way it s constructed osb has less tendency to swell and contract with.
It can also be used for roof sheathing to go under your roofing system or as a sheathing on the walls.
In order to obtain the thin sheets of laminate to make plywood manufacturers have to slice them from.
When they are used in roofing osb can retain heat and water perfectly.
Osb is widely used as roof decking material.
With edge support and the same snow load 3 8 inch osb can be used.
It s regularly used for flooring because of its strength and it s ideal for a workshop or shed.
A homeowner recently wrote and asked me the following regarding osb roof decking.
Oriented strand board commonly referred to as osb is a type of engineered lumber similar to particle board formed by adding adhesives and then compressing layers of wood strands.
However the board is lack of natural moisture inside and won t dry as quickly as plywood.
As the result they are stronger and basically water proof.
Osb is made out of strands of wood chips and chemically engineered materials to glue them together.