Metal Roof Purlins Or Sheathing

For best results with aluminum panels use 300.

Metal roof purlins or sheathing.

The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to. But i am convinced after inspecting thousands of asphalt shingled roofs metal is the way to go. Metal roofing roof panels the home depot store finder. Get free shipping on qualified metal roofing or buy online pick up in store today in the building materials department.

Roof pitch the metal roofing panels shown in this manual require a mini. 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. 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.

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. Use screws with solid sheathing. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Purlins are non pressure treated 1 x 4 x 12 lumber that is installed on to the roof in a specific layout pattern and screw pattern.

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. For many applications a layer of plywood underneath your metal roofing is an unnecessary expense.