Metal Roof Purlins Or Sheathing

I am doing an exsposed fastener metal roof on my own place.

Metal roof purlins or sheathing.

But i am convinced after inspecting thousands of asphalt shingled roofs metal is the way to go. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. 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. 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.

For best results with aluminum panels use 300. Metal roofing is also available in the form of shingles. The difference in strength for wind and snow load are my concerns on whether to use purlins or sheathing versus cost. In order to avoid a hump at the transition from two layers of materials to one the notation on the building plans advises to lower the roof purlins in these areas by 7 16.

Get free shipping on qualified metal roofing or buy online pick up in store today in the building materials department. Screws for use with steel panels are galvanized and then coated with an organic polymer for optimum cor rosion resistance. The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to. Roof pitch the metal roofing panels shown in this manual require a mini.

Metal roofing roof panels the home depot store finder. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Purlins girts and roof deck.