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
I have seen it done and seen the paint last if cleaning is thorough and the proper paint is used but the first answer is true. You won't replicate a factory finish and it is nore difficult to do than ... read more