This roof that we replaced in Longmont turned out really sharp. It is a CertainTeed Northgate Class IV asphalt shingle roof in the color Heather Blend. the roof is what is called a hip roof meaning that it does not have a lot of ridge lines. Because of that we could not install ridge vent - our preferred method of attic ventilation. Due to that we added a lot of slant back vents to increase the attic ventilation.