Installing Metal Roofing Over Osb

Although you can install corrugated metal roofing over shingles for the best foundation it is recommended that all the old roofing be removed.

Installing metal roofing over osb.

April 3 2017 filed under. Most metal shingles will be attached to the roof using metal shingle. Hammer down all raised nails. Remove all unused vents pipes and protrusions.

Work at a comfortable steady pace trying not to rip up or carry off too much old roofing at once. Remove the old roofing. For many applications a layer of plywood underneath your metal roofing is an unnecessary expense. How to apply metal roofing over plywood.

Inspect the plywood for damaged areas. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. 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. Osb exterior gypsum before installing tw metal and tile underlayment under copper roofing fasteners and batten strips must be used when installing tiles over tw metal and tile.

Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Then the top of all your purlins once osb under metal roof panels is placed will be in the same plane and the roof steel will lay flat. Sweep the plywood clean of all dirt and. I m halfway though sheeting the roof of my shipping container shop and already need to redo some of it.

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. Repair any rotted sections of plywood before installing the metal panels.