How Many Screws To Install Metal Roofing

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.

How many screws to install metal roofing.

Tin roofing also known as metal roofing is considered more durable than composition or wood shingles. There are two schools of thought when it comes to corrugated metal roofing screw placement both are correct. 1 inch and 2 inch. How to calculate and place screws.

Screws are available in quantities of 250. Your roof will have thousands of screw holes. Quite often the screws are over tightened or under tightened and when this happens it creates leak points. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

The table below can be used to figure approximate quantities of screws for various purlin spacings and sizes of roofs. The roofing is manufactured in panels that install using aluminum nails or screws that. Allsteel carries screws in 2 different lengths. Absolute steel recommends using metal self tapping screws with thin washers that have been properly compressed to ensure a secure seal.

Set the drill s direction indicator to the forward or clockwise position. Many newer metal roofs are built with exposed fasteners which can leak if the metal roof installation guide is not carefully followed. The main cause of a leaking roof on a diy metal roofing installation is incorrectly fastening the screws. 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.

Preventing leaks lengthens a roof s life. You will also need a large garbage can a jigsaw or power metal shear a staple gun a drill and assorted drill bits 1 inch roofing nails metal roofing screws and self drilling self sealing wood screws. Install the roofing screws vertically along each rib in the panel. You will most likely have to order the roofing metal in the amount and color specific to your house.

The 1 inch variety is the best all purpose size. The advantage to this method is the screws are exposed to less water and debris. A metal roof is a long lasting roof but checking the screws for damages is an important part of metal roof maintenance. Install a magnetic driver bit of the requisite size for the heads of your metal roofing screws into a power drill.