Don’t lose time and money to tear off your old shingle roof. Knowing how a metal roof can be installed over your shingle roofing system will aid you in making informed decisions when it’s time to set up your roof installation. Not knowing what to consider when installing a metal roof over a shingle roofing system or hiring a contractor ill-equipped to complete the installation can lead to catastrophic roof damages, loss of revenue, and severe structural damage. atlantacommercialroofingcontractors.com gathered the following essential information about how metal roofing systems are installed over a shingle roof, its benefits, and its drawbacks. #CommercialRoofingAtlanta #Roof #Roofer #Reroof