Professionals Are Furious! The Secret Tuff Rib Screw Pattern Finally Revealed!

Edge purlins internal purlins it is recommended that panels should be fastened every 2 on center. The following guide explains proper 5 rib metal roofing screw placement to maximize weather resistance, structural integrity, and longevity for residential and light commercial roofs. Fasteners screw fasteners of 1 to 2 length are placed beside every high rib on the width of the sheet and at each girt or purlin as per detail b. To estimate the quantity of screw fasteners required estimate 1 screw per square foot of cladding. Tuff rib and/or diamond rib (wall steel) metal installation manual 36 panels note:

Recommended screw pattern for field installations in field installations, fasteners should sit on the flat area between ribs rather than on the rib peak. The typical spacing is 24 inches on center along the field, though many manufacturers adjust this based on panel width, wind. The tuff rib panels should be no longer than 25 to minimize the effect of metal expansion and contraction. This length is also easier to handle during installation. In situations where longer lengths are required, the ends will be overlapped. On roofs, the distance of end overlap varies with the amount of slope.