Architectural shingles: These don't have cutouts and should include further asphalt. Water-proof although not proposed for flat roofs. Solar tiles are as long lasting as frequent shingles, but these kind of roofing shingles are intended to harness the Sunshine’s Electricity to generate energy for the house. Slate and tile roofs https://ClassifiedsLink.com/588/posts/3/125/2067805.html