At this point chalk a line from ridge to eave.
How to install galvalume roofing.
Measure one panel width in from the roof edge.
Some panels have pre drilled holes.
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.
The washer under the screw head should seal to the surface of the panel without bulging or shifting.
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.
Installing corrugated roofing 1.
Its popularity has nearly quadrupled in the last 20 years.
Most panels come up to 32 feet 9 8 m in length.
Fasten it with galvanized screws with plastic washer caps by using a screw gun.
Install the roof substrate according to local building code requirements.
Install the roofing screws vertically along each rib in the panel.
If yours do not then you will need to drill holes.
Place the first screw about 7 inches from the bottom and each subsequent screw about 18 to 24 inches apart along the vertical run.
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.
Pre drill holes on the ridges.
Preformed valley trim panel wood screw panel.
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.
Allow for a minimum of 18.
Place the leading edge of the first panel along this line.
Install the first galvanized roof panel at one bottom corner.
See panel squaring method in this manual.
Secure the screws but do not overtighten.