I finally took off the tradesman roof rack to see how the gutter is. Keep in mind this is a high roof from Japan- it all looked good but for one spot, approximately 12 inches long. I've done some basic panel rust repair but I'm not sure how to tackle this one. The rust has gone through the outer roof steel and has just barely touched the inner steel. it is about a half inch from the gutter extending upward about another half inch. Any help is greatly appreciated. -david i tried to post pics but my computer is too slow.