Patent ID: 8226790

Claim:
A method of making and applying an impact resistant roofing shingle to a roofing substrate comprising the steps in the sequence set forth: applying an asphalt coating to a bottom surface of a substrate, the asphalt coating having a first melting temperature; disposing granules on the top side of the coated web; wherein the granules are rock coated with a colored ceramic coating, coal slag and sand; pressing the granules into the coated web; cooling the coated substrate; adhering a rubber polymer modified asphaltic adhesive to the asphalt coating, the modified asphaltic adhesive having a second melting temperature; adhering an impact resistant film to the rubber polymer modified asphaltic adhesive, wherein a laminated substrate is formed and the impact resistant film is a bottom-most layer of the laminated substrate, the impact resistant film providing protective reinforcement against the generation of cracks in the asphalt coated substrate due to impact, the impact resistant film having a third melting temperature, wherein the second melting temperature is higher than the first melting temperature thereby allowing the modified asphaltic adhesive to prevent and seal cracks caused by impact that may develop in the roofing shingle after installation, and the third melting temperature is independent from the first and second melting temperatures; cutting the laminated substrate into roofing shingles, wherein the roofing shingles have self-sealing properties and impact-resistant qualities; and applying the roofing shingles to the roofing substrate, wherein the impact resistant film is adjacent the roofing substrate.