An exception to this standard however may occur if you intend to install slate concrete or tile shingles on your roof.
Flat roof plywood thickness.
Roofs plywood.
Plytanium 23 32 cat ps1 09 square structural pine sheathing application as 4 x 8.
With edge support and the same snow load 3 8 inch osb can be used.
Woodwool slabs are a rigid timber and cement based panels which can be reinforced if long spans are required.
You can get plywood sheets with a length of up to 10 feet.
The minimum thickness of plywood used for roofing is 3 8 th of an inch.
Standard roof sheathing which consists of 4 by 8 sheets of plywood or oriented strand board or osb is 1 2 inch thick and attaches directly to the roof rafters or the roof trusses.
You might be tempted to choose a inch thickness although it s unnecessary in most cases.
In this case plywood should be a minimum of 3 8 inch thick.
For pricing and availability.
Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.
The standard width is 4 feet.
Woodwool slabs should be no less than 50mm thick and conform to bs en 13168.
However you may need to consider bolstering the plywood thickness for a roof that has a higher load.
A roof that lays practically flat will have a much heavier load than a steeper roof that allows rain snow and ice to roll right off.
Plytanium 3 8 cat.
That will suffice on a roof with rafters set 16 inches apart with minimal roof loads.
For pricing and availability.
Foot and with a maximum of spacing of 16 inches between rafters.
The ideal thickness for the standard rafter spacing of 24 inches is 5 8 th of an inch.
Minimum thickness most roofs will be sheathed in plywood at least 3 8 inch thick.
Steeper rather than flatter roofs will have lesser load per sq.
This kind of plywood can be used on roofs with minimal load.