All shingles are not created equal. Some are low quality, and less resilient than others. If you need a new roof installation or replacement in Dearborn Michigan, you want shingles that are tough and will last many years. The highest rating shingles in the industry are known as Class 4 rated shingles. These have been put through the most rigorous tests available. One of the most popular shingles in this category are GAF Timberline Armor Shield II Class 4 rated…