The Old World Slate tiles are made of recycled plastics (polymer) and other fully sustainable materials. Natural slate tile is fragile and requires lots of attention throughout the years. Chips or cracks can lead to costly repairs, and finding a colour match for replacement slate shingles is next to impossible. Our Old World Slate roofing shingles are Class 4 impact rated (the highest in the industry) and hail warrantied. The Old World Slate is also available in Class A or Class C fire rating.