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.
Installing steel roof panels.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
Moreover a corrugated metal roof is highly durable and will last for decades.
Make sure the panel is square to the eave of the roof so that all of panels installed afterwards are straight.
Install the roofing screws vertically along each rib in the panel.
Add the metal panels.
The roof panels are installed similar to the wall panels in layout.
Corrugated metal roofing can be a convenient and relatively affordable way to provide protection without the need to install metal shingles.
3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof.
Using screws fasten roof at top and bottom of the sheet in the flat next to each rib.
Lay down the first roof steel panel squaring it with the mason line.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
Along the fastening strip of the sl16 always use the pancake head fastener.
Take your first sheet of metal and place it on the roof so that it overhangs the edge at least 3 4 in 1 9 cm.
Next you are ready to install the metal roof.
Next put a screw into the fastening strip to keep it steady before installing the screws along the face.
You can use 1 inch nails for the installation of eave flashing.
As long as the plywood under the shingle roof is in good condition this way can provide many benefits.
Take care the first piece is aligned precisely perpendicular square to the edge.
When you decide to install corrugated metal roofing you just need to make sure that you have the right materials.
You are essentially sealing off the metal roof with this flashing and you need to make sure that is securely fastened.
Always begin working at the point with the longest peak to eave distance.
This is by far the most common way to install a metal roof.
Now we can install our roof panels.