However moisture has a way of finding its way into a structure.
Osb for shed roof.
Osb is fine all the way around.
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.
Using oriented strand board osb for shed walls floors and roofs.
Good enough for houses good enough for a shed.
Plywood with similar propertiescurrently costs about 30 more for an equivalent thickness.
The osb thickness will be based on the rafter spacing.
With edge support and the same snow load 3 8 inch osb can be used.
Standard asphalt shingles do an excellent job keeping the weather out.
Using oriented strand board is a tested way of reducing costs for building your shed.
Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.
However there are some sceptics out there who doubt the strength and durability of osb.
This is a type of engineered particleboard made specifically for covering the roof of a shed or dwelling.
The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24.
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.
Thicknesses range from 5 16 to 3 4 inch and the proper one to use.