Two common types of metal standing seam are galvanized metal dipped in zinc and Galvalume steel dipped in a blend of aluminum, zinc, and silicon. Quite a few websites use cookies or identical resources to retail outlet information on your browser or system. We use cookies on BBB websites to https://portaltrendz.com/4-roofing-contractors-recommended-in-oswego-il-top-local-experts-for-your-roofing-needs/