Certainteed Landmark Shingles​ use straight, not angled, cuts. Their dimensional profile, deep shadow bands and staggered dragon’s teeth create the appearance of natural wood shakes for a high-end designer look at an affordable cost. IKO Cambridge shingles enhance any home’s style, from traditional to modern, rustic to urban. They’re engineered to withstand the elements for years, making them one of the most durable shingles you can buy.