Asphalt shingles are the most common type of roofing material. They’re generally the most affordable option, easiest to install and last about 20 to 25 years. At McCann's, we believe that due to Oklahoma’s climate and weather, asphalt shingles are nearly always the most economical and wise choice. More expensive options like metal, slate and shake exist, but they’re also more expensive to replace after Oklahoma’s notorious hail and windstorms.