How To Install Galvalume Roofing

Fasten it with galvanized screws with plastic washer caps by using a screw gun.

How to install galvalume roofing.

Pre drill holes on the ridges. Place the leading edge of the first panel along this line. Install the roof substrate according to local building code requirements. It is extremely important that this panel be laid square to the eave and ridge so that the remaining panels will line up square on the roof frame.

Today metal roofing is on the rise again. Its popularity has nearly quadrupled in the last 20 years. See panel squaring method in this manual. Place the first screw at the outside bottom edge add screws at the other edge and the top of the panel to secure it and finish fastening it with screws about 24 inches apart.

Retrofitting is accomplished by installing to the existing roof structure a light weight sub framing system generally made with light structural steel sections that provides a minimum 12 slope for the new galvalume ssr. Allow for a minimum of 18. Measure one panel width in from the roof edge. By installing the roof directly over the existing nonmetallic roof costly and time consuming tear offs are eliminated and activities inside the building can continue without interruption.

The washer under the screw head should seal to the surface of the panel without bulging or shifting. Most panels come up to 32 feet 9 8 m in length. At this point chalk a line from ridge to eave. Secure the screws but do not overtighten.

Preformed valley trim panel wood screw panel. If yours do not then you will need to drill holes. Installing corrugated roofing 1. Cut the panels to the desired length.

Place the first screw about 7 inches from the bottom and each subsequent screw about 18 to 24 inches apart along the vertical run. Install the roofing screws vertically along each rib in the panel. Install the panel a minimum of 3 up from the water diverter at the bottom of the valley and minimum of 3 down from the top of the valley.