Plywood Or Decking For Roof

Many factors affect thickness.

Plywood or decking for roof.

There are three types of wood roof decks. When it comes to choosing what kind of plywood you need for the roof it is important to understand the basic categories that you can choose from. It is an excellent choice for light frame wall and roof assemblies in weather protected applications. Most construction sites will consider the use of either osb or plywood for the roof.

Severe weather 1 2 in common douglas fir plywood sheathing application as 4 x 8. Find plywood sheathing plywood at lowe s today. A is smooth and knot free while d the lowest quality has missing knots and cracks. Steeper rather than flatter roofs will have lesser load per sq.

The minimum thickness of plywood used for roofing is 3 8 th of an inch. Foot and with a maximum of spacing of 16 inches between rafters. This kind of plywood can be used on roofs with minimal load. The thickness of plywood used for roof decking depends on the roof slope the spacing of.

As a quick primer in plywood each side is rated from a to d. The common grade of plywood for roof sheathing is cdx. It can withstand moisture for a brief period of time but may become warped and delaminated with consistent exposure to the elements. Plywood is made with three or more layers of thin wood glued together with the grain.

Tongue and groove plywood or osb sheathing plank sheathing. Unfortunately because the roof sheathing isn t normally visible damage can go unnoticed by homeowners. One side is usually better quality than the other c in this case. Cdx plywood is a construction grade type of plywood that is designed for exposure to the elements.

Plywood typically comes in 4 8 ft. Sheathing sizes 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. Every piece meets the highest grading standards for strength and appearance. Plywood sheathing delivers outstanding stiffness strength and versatility.

The minimum plywood for roofing plywood is layers of wood. It adds proven performance and durability to new homes room additions and renovations. Sometimes referred to as roof sheathing or a roof deck this plywood acts as a foundation for the layers of underlay and the shingles on your roof and connects the roof to the frame of the house.