Here are some pros and cons.
How to put a metal roof on house.
Try to space the screws about 12 inches apart down the entire piece of metal.
Install the roofing screws vertically along each rib in the panel.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
Can you avoid tearing off your old asphalt shingle roof by putting a steel roof over it.
How to install a metal roof on a house covering your existing asphalt shingles with metal roofing might be worth the expense.
When you have bent roughly 2 of seam this way remove the iron and tap the metal down another 45 degrees using just the hammer.
You will use metal roofing screws to secure the metal panels to the sheathing.
Start at the highest point and the furthest point from the trash container and take off all the old shingles flashing.
Can you put steel roofing over asphalt.
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.
Moreover try to ensure that the screws are all aligned evenly.
If you come across any large nails that are sticking out either remove them and put them in your debris container or.
Place the iron against the 1 upturned metal edge then using a soft faced mallet bend the 1 metal edge over the iron to 90 degrees sliding the iron along as you hammer.
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.
Most codes now allow no more than two layers of roofing before requiring a complete tear off.
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