Today metal roofs often consist of an alloy steel with a zinc coating applied to it for protection, known as galvanized metal ...

Metal roofing offers unmatched weather resistance, energy efficiency, and low maintenance, making it a top choice for modern ...

Rain water contains more or less ammonia when first precipitated. The oxide upon a galvanized iron roof would of course be dissolved to a certain extent, during a rain storm, a fact that has been ...