Metal Roof Over Osb

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.

Metal roof over osb. April 3 2017 filed under. 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. 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. Install the first metal panel on the low end of the roof square to the eave.

When the steel roofing can t carry the load other shear carrying materials such as 7 16 osb may be added to the assembly. 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. Is osb acceptable as roof decking for metal roofing. Let s take a look at the most common types of metal roofs for houses.

Work toward the ridge. Overlap the edge of the roof by 1 inch. Begin on the left side of the roof working to the right.