How To Install Corrugated Metal Roofing On A Flat Roof

Corrugated metal roofing generally comes in sheets that are 3x6 feet in size 18 square feet.

How to install corrugated metal roofing on a flat roof.

If there are gutters installed on the eaves the eave flashing should be installed to overhang the lip of the gutter by about 1 2 inch. Finish the first side of the roof. They also come in 12 lengths if you have a bigger roof to cover. Multiply those numbers and then double the result for the square footage of your roof.

Horizontal plastic closure strips these attach to the top of the pergola to hold the roofing panels on since they should be installed every 2 feet you will need about 5 for every 8 length of paneling. Lay the roofing felt. Install edging use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging. Before you start to install corrugated metal roofing you need to figure out how much you need.

Although you can install corrugated metal roofing over shingles for the best foundation it is recommended that all the old roofing be removed. Place corner pieces where panels will meet bends at the edge of the roofing. Buy the metal panels. Sunday august 5 2018 the traditional metal roof types such as 5v crimp shown above and corrugated are rated by the manufacturers for use down to a 3 12 pitch three inches of vertical rise for every foot of horizontal run.

Complete the first row. Measure the length of the roof and the breadth of one side. To install corrugated roofing start by cutting your panels to length with an angle grinder. 2 corrugated metal roof installation instructions.

Compared to asphalt shingles that weigh an average of 2 5 lbs. Beginning at the outside edge of your roof place each panel directly onto the purlins that are attached to the roof trusses. Next pre drill holes on the end and side ridges of the panels spacing the holes 6 to 8 inches apart. The light weight of a corrugated metal panel is another advantage.

Can metal roofing be used on a low slope pitch roof. Per square foot metal roofing panels only weigh 7 to 1 3 pounds per square foot which allows the panels to be installed over existing roofing materials.