How To Install Metal Roofing On A Flat Roof

Install the roofing screws vertically along each rib in the panel.

How to install metal roofing on a flat roof.

The eave flashing or edging is just the steel metal strips used to cover the entire perimeter of the roof. A corrugated metal roof is quieter than pvc when it rains. Install metal panels or shingles 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. Next you are ready to install the metal roof.

Overlap the edge of an end piece from roll to roll by 6 inches and stagger the laps between courses. Take care the first piece is aligned precisely perpendicular square to the edge. Step 5 overlap each preceding course by 3 inches to create an effective watertight lap for the flat roof. Use 3 inch white sheet metal screws with neoprene washers on the ridges of the corrugated metal sheeting.

Take your first sheet of metal and place it on the roof so that it overhangs the edge at least 3 4 in 1 9 cm. You can use 1 inch nails for the installation of eave flashing. Secure the corrugated metal sheet using a drill and 3 inch deck screws to attach the metal to the furring strips. Metal specifically aluminum is known for its durability.

You can also nail a chalk line straight every 2 feet to use as a guide. If you want to install steel over asphalt your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel. Metal roofing resists rot is not susceptible to insect damage and is non combustible a boon in fire prone areas. Flat metal roofs can last for almost 35 years in ideal conditions.

Space the screws about 12 in 30 cm apart down the entire piece of metal. Metal is one of the most popular materials used for flat roof replacement. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. One downside is that the metal sheets have a susceptibility to denting both in installation and during hailstorms.

Can metal roofing be used on a low slope pitch roof. Step 4 laying the sheets. Plus it has the added advantage of reflecting heat from the sun which keeps energy costs down. Use metal 1 inch roofing nails to install the metal edging that goes around the perimeter of the roof.

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. In a standing seam roof long single panels run vertically all the way from the eave to the ridge. Use a hand roller to firmly press the roofing length onto the roof deck after you position each course. Take a metal sheet and use inch metal wood screws to affix the roofing onto the wood slats.