Metal Roof Overlap Length

Common metal roof sheet sizes.

Metal roof overlap length.

Be sure the larger edge is laid so that the small edge of the next panel will overlap it. Corrugated roof sheet sizes. Depending on the climate you live in the resulting weather patterns and the way your panels are installed the required amount of metal roof overhang will differ. The most common widths are 24 and 36 exposed but the actual width of the panel will be larger to accommodate an overlap.

Divide the square footage of your roof by 18 to give you the number of sheets you ll need. We recommend about 2. There are various lengths widths and. When installing metal roof panels it s important to keep in mind the conditions your roof will need to face in the future.

Corrugated metal roofing generally comes in sheets that are 3x6 feet in size 18 square feet. If your panels aren t layered properly water damage can occur. The most common lengths are 8 10 12 and 16 however many distributors will cut to length. Metal roofs though less appealing than shingle or tile is a more fire resistant and heat reflecting roofing option.

Roofing panels come in many styles and dimensions with different overlap dimensions. Measure the length of the roof and the breadth of one side. Metal panels should be installed with a 14 woodgrip screw with a neoprene washer here after referred to as metal screws in the flat of the metal of metal beside the major rib. Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line.

See section 6 page 4 for screw patterns ordering and applying trim the ridge cap which is used at the peak of a roof where opposing roof slopes join is the most. Multiply those numbers and then double the result for the square footage of your roof. The metal roof length calculator calculates the distance from peak to trim so add the length you want the roof metal to extend beyond the eave trim.