The battle between the two methods has been going on for years and there will never be a clear concise answer. It comes down to the Experience of the roofer, NOT the tools used. Weinel Roofing has installed Every Shingle WITHOUT the use of a nail gun, since we began 30 years ago. If not using a nailgun meant a slower speed and higher cost, Weinel Roofing would fail to exist due to lack of clientele. If you take the time needed to set up compressor, constant reloading nails, and tangling and untangle of hoses, Weinel Roofing is already started nailing.