When it comes to selecting the ideal roofing material for your project, understanding the differences between various options is crucial. Galvalume and galvanized roofing are two popular choices in the realm of sheet metal roofing, each with its own set of characteristics and benefits. In this article, we'll delve into the distinct features of these two varieties to help you make an informed decision for your roofing needs.
Galvalume Roofing:
Galvalume roofing is engineered from steel coated with a blend of aluminum and zinc. This coating not only shields the underlying steel from corrosion but also extends the lifespan of the roofing material significantly. One of the notable attributes of galvalume roofing is its distinctive silver-gray hue, attributed to the amalgamation of aluminum and zinc.
Galvanized Roofing:
On the other hand, galvanized roofing is crafted from steel coated solely with a layer of zinc. While this coating serves as an effective barrier against corrosion, it also gives galvanized roofing its characteristic shiny, metallic appearance. Additionally, galvanized roofing typically comes at a slightly lower cost compared to its galvalume counterpart.
Choosing Between Galvalume and Galvanized Roofing:
Both galvalume and galvanized roofing options are renowned for their durability and long-lasting performance in various roofing applications. However, the decision between the two may hinge on specific environmental factors.
In areas with heightened levels of atmospheric pollution, galvalume roofing often emerges as the superior choice. The inclusion of aluminum in its coating provides added protection against the corrosive effects of pollutants, thus enhancing the longevity of the roofing system. Similarly, in regions characterized by elevated salt levels in the air, such as coastal areas, galvalume roofing is favored for its ability to safeguard the underlying steel from the corrosive impact of salt.