Metal Roof On Plywood Or Osb

When you count sub floors roofs and wall sheathing osb claims about 70 of the wood sheathing market in north america over plywood.

Metal roof on plywood or osb.

An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing. Odds are that if you pass a housing development of wood framed houses it will have osb oriented strand board as exterior sheathing. Osb is widely used as roof decking material. Cdx plywood is a construction grade type of plywood that is designed for exposure to the elements.

Install the first metal panel on the low end of the roof square to the eave. It can withstand moisture for a brief period of time but may become warped and delaminated with consistent exposure to the elements. Overlap the edge of the roof by 1 inch. The contractor can choose an oriented standard board osb or plywood to create the decking of the roof.

If you re a contractor this is no news to you. A homeowner recently wrote and asked me the following regarding osb roof decking. It is generally believed that osb is cheaper than plywood. It is true as the price of every osb board is around 15 20 per sheet 4 8 sizes.

Most construction sites will consider the use of either osb or plywood for the roof. Whether you are looking to install a metal roof on a shed or a house it s important to know the difference in the various types of metal roofs available. Work toward the ridge. In the process of constructing a roof there are typically two different roof decking materials.

Metal roofing panels rated for architectural use attached to purlins horizontal pieces of wood or metal fastened to roofing trusses are structurally sound when installed according to your roofing manufacturer s instructions and local building codes. Secure the metal panel to the deck by drilling 1 1 2 inch galvanized metal screws through the peak of the rib in 12 inch to 16 inch intervals. Plywood used for roof decking is typically called sheathing and. Talking about plywood or osb for roofing you cannot miss the information of the cost.

The most common materials for this are oriented strand board osb or plywood both formed of layers of wood bonded into a panel. Osb v plywood which is best. For many applications a layer of plywood underneath your metal roofing is an unnecessary expense. Let s take a look at the most common types of metal roofs for houses.