How Many Screws Per Square Foot Of Metal Roofing

Here are two easy formulas for determining the amount of metal roofing screws.

How many screws per square foot of metal roofing.

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. Take your square footage and multiply it by 80. 1 inch and 2 inch. 30 roofing squares x 80 screws 2 400 screws.

Fabral 2012 midwest manufacturing specifies 75 screws per square of metal roofing. 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. Screws are available in quantities of 250. 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.

3 000 square feet x 80 2 400 screws. The 1 inch variety is the best all purpose size. Going across the 36 width i place one in each overlap and 2 in the middle for a total of 4 screws. The table below can be used to figure approximate quantities of screws for various purlin spacings and sizes of roofs.

A roofing square is 100 square feet. Allsteel carries screws in 2 different lengths. 80 screws for each roofing square. Standard details for metal best materials roofing supplies.

How to calculate and place screws. Fabral roofing specifies 80 galvanized screws per square of steel material for aluminum material use stainless steel screws. Metal roofing panels are slippery when wet dusty frosty or oily do not attempt to walk on a metal roof under these conditions. Step 1 choose your roofing material exposed fastener metal roofing panels.