CR’s testing focuses strictly on asphalt roofing shingles because they’re the ... exposes them to 500 hours’ worth of ultraviolet light that’s as bright as the midday sun and water sprays ...

Asphalt shingles are the most common roofing material for homeowners and the most affordable. "If it's time to reroof and money is a big object to you, it's going to be the cheapest upfront to get ...