How Far Apart Do You Put Screws In Metal Roofing

The 1 inch variety is the best all purpose size.

How far apart do you put screws in metal roofing.

In this example the section of roof is 20 feet wide and 14. How to calculate and place screws. The washer under the screw head should seal to the surface of the panel without bulging or shifting. Allsteel carries screws in 2 different lengths.

Install the roofing screws vertically along each rib in the panel. Measure the section of the roof from the fascia to the peak and divide this by two which is the two foot spacing of the wood nailers. Follow the proper screw pattern the last common concern when discussing the installation of the purlin system is the screw pattern. 1 inch and 2 inch.

Corrugated roof panels and other exposed fastener metal roofs are usually held together with screws every 18 inches or 2 feet. Proper metal roofing installation begins with the use of the right equipment starting with the screws used to anchor your panels or shingles to the structure. You will want to note your metal roof screw pattern so you know where to look for potential problems. Place the first screw about 7 inches from the bottom and each subsequent screw about 18 to 24 inches apart along the vertical run.

Always match the speed of the drill to the substrate or screw type. The screws need to be placed every 2 on center as like the diagram below but also the screws need to be doubled at every on center location. Use a 2 500 rpm screw gun for wood and steel substrates that are less than 1 4 inch thick. Screws are available in quantities of 250.

Absolute steel recommends using metal self tapping screws with thin washers that have been properly compressed to ensure a secure seal. When you decide to screw down a metal roof it s important that you have the screw gun set to the correct drill speed settings. Secure the screws but do not overtighten.