AG Panel – a low-profile, economical panel solution for residential, commercial and agricultural roofing or post frame buildings. AG panels are a very durable, high-value metal roofing system. Manufactured in 29 ga. and 26 ga., and available in 16 stock colors plus galvalume in 29 ga., and 22 stock colors plus galvalume in 26 ga. Mini­mum recommended slope is 3:12.