River Falls New Roof Replacement With Class 3 Shingles Project River Falls New Roof Replacement With Class 3 Shingles Project Blackwolf Exteriors completed a full tear-off and roof replacement on an early 1980s home in River Falls, WI. The project featured Owens Corning Class 3 impact-resistant shingles, six feet of ice shield, and ridge venting to resolve algae streaking, improve hail defense, and lower interior heat. Read More