Space the screws about 12 in 30 cm apart down the entire piece of metal.
How to do metal roofing.
Metal roofs must be laid flat on a vapor barrier because steel will condensate if there s any air space underneath it.
Many homeowners and roofers are choosing it not only for safety but for durability.
Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.
Put the steel down directly on a vapor barrier.
How to install metal roofing.
And for any exposed fasteners try to avoid over tightening them.
Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.
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Try to space the screws about 12 inches apart down the entire piece of metal.
It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same.
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.
Moreover try to ensure that the screws are all aligned evenly.
Take care the first piece is aligned precisely perpendicular square to the edge.
Metal roofing is also available in the form of shingles.