Installing a metal roof over shingles involves a roofing contractor or other professional placing an underlayment over your existing shingle roof and then putting a new metal roof over the top of it.

Metal and shingle roofs are common options for residential buildings. Metal roofs are typically made of large sheets of steel, aluminum, tin, or copper. This type of roof has a high upfront cost and ...

Some of the most common metal roof shingles and types, as well as their national average cost per square foot, include the following: The following table further breaks down what homeowners can ...

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.