What Thickness Of Plywood Is Used For Roofing

Shuttering plywood is another type of plywood but it generally isn t used in roofing.

What thickness of plywood is used for roofing.

Several factors must be considered when determining appropriate roof sheathing thickness such as the. That s considered to be the minimum. Keep in mind that the load of the roof still plays a role in the plywood thickness. This minimum will only work if the rafters are set 16 inches apart at most and if the roof doesn t have too much load.

Find plywood sheathing plywood at lowe s today. 3 8 should be replaced optimally but it would be better to use all the same thickness sheathing than to mix them. The ideal thickness for the standard rafter spacing of 24 inches is 5 8 th of an inch. The minimum thickness of plywood used for roofing is 3 8 th of an inch.

Generally plywood comes in 4 by 8 foot sheets and in a variety of grades. Steeper rather than flatter roofs will have lesser load per sq. Instead it is used to hold concrete whilst it sets. It is about 2 to 3 millimeters thick and is generally used indoors since it looks more decorative than thicker plywood boards.

Osb and plywood come in thicknesses ranging from 5 16 to 3 4 inch and the thickness needed for a particular roof depends on several factors including rafter spacing expected load and roof. 3 ply is one of the most common types of plywood. Required sheathing thickness for roofing important factors. When this is the case experts recommend a 5 8 inch thick sheet.

The thickness of plywood used for roof decking depends on the roof slope the spacing of. The minimum plywood for roofing plywood is layers of wood. Roof sheathing thickness unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick. This kind of plywood can be used on roofs with minimal load.

Many factors affect thickness. And this will reduce the life of the shingles tar paper and roof. 5 ply is a versatile type of plywood that is about 4 millimeters thick. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood.

Many homes have rafters that are even wider at 24 inches apart and will require a thicker sheet of plywood. If you mix thicknesses of plywood it will cause a problem eventually and the thicker sheathing will be noticeable probably within a month.