Then cover the entire roof with a layer of insulation and secure it with a staple gun.
Install metal roof over electric riser.
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 line.
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.
Next use 1 inch nails to secure some metal edging to the perimeter of the roof.
Before you install metal roofing repair any damage to the wood under the shingles.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
Cut flashing opening to appropriate size for pipe.
You also need to add.
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Apply sealant to underside of base and secure base with roofing nails.
Wrap flashing around electrical mast and close by crimping stainless steel clips supplied.
Install the roofing screws vertically along each rib in the panel.