Welcome back to the DIY Asphalt Shingle roofing guide Part 3. CAUTION: “These instructions are for IKO asphalt roofing shingles only. Other asphalt shingle manufacturers may have different guidelines.”   Cutting 90mm off the first piece of asphalt shingle starter course   We cut 90mm off the first piece of starter course.  This stops the … Continue reading How to install guide PART 3