DIY is not ideal for heavy or hard-to-install shingle varieties. It is always best to leave clay, metal, wood and slate shingles to the pros. Shingle roofing is the best option for most homeowners.

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.

shingle costs are not as susceptible to material cost fluctuations as metal options would be. Installation is where asphalt shingles really win out over pricier metal roofing options, in part ...

However, installing a metal roof over existing ... other considerations may influence the choice between metal and shingle roofing. For homeowners residing in neighborhoods governed by homeowners ...