Asphalt rolled roofing should only be used on flat or low sloped roofs. This material has a short life expectancy of about 10 years and requires ongoing maintenance. The seams should be inspected periodically as the roof surface is prone to damage from water ponding and ice in northern climates. Since it is primarily used on low slopes the roof material degrades quickly from ultraviolet exposure and wear from the direct nature of the elements. Besides wearing out quickly these roofs are often installed poorly because it is a very inexpensive installation. Careful attention must be paid to flat or low sloped roofs with asphalt rolled roofing.