Installing Metal Roof On Flat Roof

In a standing seam roof long single panels run vertically all the way from the eave to the ridge.

Installing metal roof on flat roof.

Use metal 1 inch roofing nails to install the metal edging that goes around the perimeter of the roof. Install the roofing screws vertically along each rib in the panel. Low slope metal roofs require less material which reduces the overall load on the building s structure. 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.

Be sure the larger edge is laid so that the small edge of the next panel will overlap it. For exposed fasteners avoid over tightening the fastener. Take a metal sheet and use inch metal wood screws to affix the roofing onto the wood slats. Use your neoprene washer head screws to secure the metal to the sheathing.

Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12. In this video i cover measuring the roof figuring the metal th. To watch the entire series from the beginning click here. The eave flashing or edging is just the steel metal strips used to cover the entire perimeter of the roof.

You can use 1 inch nails for the installation of eave flashing. Next you are ready to install the metal roof. You can also nail a chalk line straight every 2 feet to use as a guide. Space the screws about 12 in 30 cm apart.

Place the first screw. 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. You are essentially sealing off the metal roof with this flashing and you need to make sure that is securely fastened. Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are.