I have a dutch gutter system around the edge of the roof, In order to fix some problems I have two roofers suggested that I have a metal cap fabricated (an inverted U-shaped continuous cap that will go on top of the fascia header and will have a drip edge on one side, the other side will connect to the inside of the gutter and be "bulled" over (am I spelling it right? "bull"?).
What the two roofers disagree on is how to attach the galvanized metal cap to the fascia header. One suggested just drill roofing nails every six inches from the top through the metal cap to the fascia. The other said this is guarantee leak because the roofing screw holes will be leaks every six inches in about six months. The original roofer says this is not a problem as the roofing screws have a rubber washer underneath that will seal it, the second roofer says the rubber will break down under the Miami sun in no time, and should use screws to fasten it from the sides, and then "bull" over it, I am wondering if it's really possible to bull over screw heads won't it break the rubber membrane easily?
Thanks,
MC