Metal Roof Over Osb

Is osb acceptable as roof decking for metal roofing.

Metal roof over osb.

Work toward the ridge. Case in point one of our recent clients in colorado has hired a building contractor to erect his building. 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. Metal roofing roofing answers roofing installation roofing materials oriented strand board commonly referred to as osb is a type of engineered lumber similar to particle board formed by adding adhesives and then compressing layers of wood strands.

Overlap the edge of the roof by 1 inch. When the steel roofing can t carry the load other shear carrying materials such as 7 16 osb may be added to the assembly. In the case above the shear forces in the last 12 foot bay at each end of the roof have had osb placed between the roof purlins and the steel roofing. An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.

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. Begin on the left side of the roof working to the right. This particular contractor happens to admit to sheathing over 90 percent of all of the post frame buildings he has put up in 7 16 osb oriented strand board beneath the steel roofing and siding.