Use your neoprene washer head screws to secure the metal to the sheathing.
How to install metal roof new construction.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
For exposed fasteners avoid over tightening the fastener.
To watch the entire series from the beginning click here.
Place the first screw.
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.
Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are.
Install the roofing screws vertically along each rib in the panel.
Measure the roof area.
Space the screws about 12 in 30 cm apart.
Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof.
You will need to order enough metal material to cover the entire roof and this process.
Remove the old roof.