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.
How to install galvalume roofing.
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.
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.
Preformed valley trim panel wood screw panel.
Today metal roofing is on the rise again.
Allow for a minimum of 18.
Secure the screws but do not overtighten.
At this point chalk a line from ridge to eave.
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.
The washer under the screw head should seal to the surface of the panel without bulging or shifting.
Place the leading edge of the first panel along this line.
Install the roof substrate according to local building code requirements.
Install the first galvanized roof panel at one bottom corner.
Measure one panel width in from the roof edge.
See panel squaring method in this manual.
Pre drill holes on the ridges.
Its popularity has nearly quadrupled in the last 20 years.
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.
Install the roofing screws vertically along each rib in the panel.
If yours do not then you will need to drill holes.
Cut the panels to the desired length.
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.
Installing corrugated roofing 1.