Residential Unpainted Galvalume Roof

Painted metal roof vs.

Residential unpainted galvalume roof.

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. 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. More than 40 years after its development galvalume roofing and siding panels are used everywhere. The more unpainted metal is exposed to the elements the more it will take on a life of its own.

Frequently asked questions about galvalume sheet roofing. So what exactly is galvalume anyway. 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. But the paintline and the people who run it will make the difference design the best.

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. See our fact sheet on galvalume plus for more information. Despite the long warranty a galvalume metal roof when properly. The answer to the question isn t always an easy one.

This entry was posted in architects building homeowners contractors metal roofing standing seam metal roof panels and tagged galvalume metal coil metal roofs roofing coil snow guards standing seam metal roof on january 15 2013 by mitch gaber. Although galvalume metal and galvanized metal sound alike they have quite a few different characteristics and qualities. Studies show that when used on a residential house that a galvalume metal roof will outlast a galvanized metal roof by almost double. We get this question a lot.

Sides of galvalume steel sheet can be roll formed without lubricants and is delivered to the job site with an oil free surface. With a quality paint finish such as kynar 500 both g 90 galvanized steel and galvalume steel should provide consistent rust free performance for. Painted metal roofs vs unpainted. With this treatment galvalume must be oiled with either vanishing or slushing oil.

Should i buy galvalume metal roofing or should i buy painted metal roofing. Lets dive in a little. Unpainted galvalume can also be passivated with a chemical treatment. A galvalume metal roof is durable and can outlast asphalt roofs by years.

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. Sheet roofing can be installed painted or unpainted. 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.