Shingle manufacturers don't care whether you hand nail or gun nail. They do care that you nail the correct amount of nails for each shingle and in the right spot. ... Guns make roofers faster, but not better. There is only a small strip in the middle of the shingle for the nails to properly go.Jun 24, 2013
Corrugated steel panel roofs are the least expensive type of metal roofing, costing about $1.20 to $5.00 per square foot comparable to the price of asphalt shingle roofing. Average costs to install a corrugated steel roof would be from $10,500 to $19,500.
Most homeowners insurance policies cover roof replacement if the damage is the result of an act of nature or sudden accidental event. Most homeowners insurance policies won't pay to replace or repair a roof that's gradually deteriorating due to wear-and-tear or neglect.