This series of GALVALUME coil roll strips are used in heavy waterways namely the gutter area on roofs, etc... 

The Advantages
 
- Metal Type: GALVALUME®

Galvalume sheet steel consists of 55% aluminum, 43.5% zinc, and 1.5% silicon.
An aluminum-zinc alloy offers many advantages when compared to galvanized metal. Aluminum zinc acts as a sturdy, defensive barrier that resists rust, the elements, and fire. It provides exceptional heat and corrosion resistance, typically four to six times greater than galvanized metal. And, unlike galvanized finishes, aluminum-zinc alloy features a resin coating that not only protects against corrosion and fingerprints but also presents a better surface for paint application, making it ideal for both interior and exterior finishes.