How Many Screws Per Square Foot Of Metal Roofing

How to calculate and place screws.

How many screws per square foot of metal roofing.

Fabral roofing specifies 80 galvanized screws per square of steel material for aluminum material use stainless steel screws. 80 screws for each roofing square. A roofing square is 100 square feet. The table below can be used to figure approximate quantities of screws for various purlin spacings and sizes of roofs.

80 screws per square or 1 pound of nails per square 26 formed width 24 coverage use on solid decking 11 1 2 1 2. The 1 inch variety is the best all purpose size. 3 000 square feet x 80 2 400 screws. Fabral 2012 midwest manufacturing specifies 75 screws per square of metal roofing.

Here are two easy formulas for determining the amount of metal roofing screws. Take your square footage and multiply it by 80. Going up and down the sheet i try not to go less than 2 feet in spacing nor more than 3 feet but i ve always used lathing spaced 2 3 feet apart so that kinda forced the issue for me. Finally divide the square footage of the roof by the square footage of the metal roofing panel to find the number of panels needed for your roof.

Metal roofing panels are slippery when wet dusty frosty or oily do not attempt to walk on a metal roof under these conditions. It s a good idea to order an extra 10 to account for cutoffs and waste material. Standard details for metal best materials roofing supplies. The hardy rib panel s design is the most common exposed fastener metal roofing panel design in the industry and comes in 3 ft wide coverage panels cut to any length you want from 3 foot to 55 feet in 1 inch increments.

Step 1 choose your roofing material exposed fastener metal roofing panels. Screws are available in quantities of 250. 30 roofing squares x 80 screws 2 400 screws. Going across the 36 width i place one in each overlap and 2 in the middle for a total of 4 screws.