How To Install Galvalume Roofing

Install the roof substrate according to local building code requirements.

How to install galvalume roofing.

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. Secure the screws but do not overtighten. See panel squaring method in this manual. Place the first screw about 7 inches from the bottom and each subsequent screw about 18 to 24 inches apart along the vertical run.

At this point chalk a line from ridge to eave. Some panels have pre drilled holes. 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.

Install the roofing screws vertically along each rib in the panel. 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. 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. Place the leading edge of the first panel along this line.

Preformed valley trim panel wood screw panel. Measure one panel width in from the roof edge. Installing corrugated roofing 1. Pre drill holes on the ridges.

Install the first galvanized roof panel at one bottom corner. And while it commands a premium the components are expensive as is the skilled labor for installation a metal roof can boost a home s resale value by up to 6 percent in some areas. Today metal roofing is on the rise again. 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.

Allow for a minimum of 18. 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. Cut the panels to the desired length.