Space the screws about 12 in 30 cm apart.
How to install metal roofing on your house.
Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.
Install the metal edging around the roof s perimeter using 1 inch 3 2 centimeter roofing nails.
Start with one side of the house at the top of the roof.
You will need to order enough metal material to cover the entire roof and this process.
Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.
Measure the roof area.
Screw a metal sheet into the wood of the roof through the tarpaper.
Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are.
Most metal shingles will be attached to the roof using metal shingle.
Screw in the next sheet making sure that it overlaps the first sheet.
Most codes now allow no more than two layers of roofing before requiring a complete tear off.
Remove the old roof.
Can you avoid tearing off your old asphalt shingle roof by putting a steel roof over it.