Residential Unpainted Galvalume Roof

Painted metal roof vs.

Residential unpainted galvalume roof.

Galvalume is a sheet steel. Lets dive in a little. Sides of galvalume steel sheet can be roll formed without lubricants and is delivered to the job site with an oil free surface. The more unpainted metal is exposed to the elements the more it will take on a life of its own.

Sheet roofing can be installed painted or unpainted. Unpainted galvalume can also be passivated with a chemical treatment. More than 40 years after its development galvalume roofing and siding panels are used everywhere. Galvanized and galvalume steel roofing it is important to note that base metals can be combined coated or layered with additional metals in a variety of bonding processes.

Post navigation metal and coatings are important. Sheet roofing can also give a historical look particularly if used unpainted. A galvalume metal roof is durable and can outlast asphalt roofs by years. See our fact sheet on galvalume plus for more information.

An estimated 80 billion square feet of galvalume sheet steel now covers buildings in all kinds of climates and environments throughout the united states canada and mexico as well as europe asia india and australia. Two popular roofing materials that use this process of binding two or more dissimilar metals are referred to as galvanized and galvalume each of which use steel as the. Although galvalume metal and galvanized metal sound alike they have quite a few different characteristics and qualities. The answer to the question isn t always an easy one.

Despite the long warranty a galvalume metal roof when properly. With this treatment galvalume must be oiled with either vanishing or slushing oil. This saves even more money on the overall system. Most galvalume metal roofs come with a 25 year warranty if the metal roofing manufacturer is using galvalume with a full az55 coating.

But the paintline and the people who run it will make the difference design the best. To illustrate the difference in performance between galvanized and galvalume steel let s consider how the two kinds of steel would perform in an uncoated unpainted steel roofing application. Frequently asked questions about galvalume sheet roofing. We get this question a lot.

Because sheet roofing is often chosen as a more economical type of metal roofing the paints used on sheet metal roofing are often lesser quality. Should i buy galvalume metal roofing or should i buy painted metal roofing. Painted metal roofs vs unpainted. So what exactly is galvalume anyway.