The minimum pitch for an asphalt roof for Asphalt shingles is 2/12 or more as long as you use at least one layer of ice and water shield and one layer of synthethic felt under the architectural shingl ... read more
Yes, you need to contact a roofing company to check it out. Possibly need a rain diviter installed. Possibly need a gutter installation company to swap out current gutters for larger commercial size ... read more