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.

we install these atop the underlayment to protect the entire roof from dams. Place each metal panel on an inside foam closure strip. These strips are shaped to fit the corrugated underside of the ...

Introduction  When it’s time to install a new roof, one material stands above the rest in terms of longevity, energy efficiency, and style—metal roofing. Whether you’re building a new home or ...