Three Mountain Roofing, a division of Anderson Construction, uses high quality roofing shingles from Owens Corning. The bright, bold, and brilliant TruDefinition® Duration® Designer asphalt shingles offer spectacular curb appeal, high performance and durability with their patented SureNail® Technology. All work is performed by expert craftsmen. We are an Owens Corning Platinum Preferred Contractor and certified installer so you can rest assured that your installation will be done properly.