Can you avoid tearing off your old asphalt shingle roof by putting a steel roof over it? Maybe. Most codes now allow no more than two layers of roofing before requiring a complete tear-off.

“Metal roofing is incredibly lightweight, which not only makes installation ... structural stress over time, particularly for older homes. Even over traditional asphalt shingles, it's an ...

The decision to replace your roof or build a new one can be overwhelming when faced with various materials. Each roofing type—whether ...

But does that mean that asphalt shingle roofs should be “written out of the plot”? Top roofing industry officials are skeptical. They concede that asphalt shingles only last an average of 20 years in ...