Metal roof corrosion is one of the biggest issues Corpus Christi TX homeowners face. It's a huge problem because both corrugated and standing seam metal roofs are the most expensive roofing materials to invest in. While they can last for more than a century with proper maintenance, other factors come into play leading to accelerated corrosion. This metal roofs guide aims to inform you about corrosion and what you can do about it.
Rust or corrosion is an extremely destructive force of nature. Not only will it degrade your metal roof's aesthetic quality, it will weaken its strength and durability. In turn, they become penetrable and easily dislodged. Hankey Law Office has a great description about rust's effects on exposed and load-bearing materials such as metal roofs.
The Dangers of Rust
Many metals are allowed to sit out in the sun unprotected from the elements. Some of the metals allowed to sit in the weather are ferrous metals which means that they can and do undergo the process of oxidation. Oxidation, or rusting, is the process by which a chemical reaction occurs between the metal and the elements resulting in the orange-brown, depending on the metal, coloring on the surface.
Some people are under the misconception that rust is nothing but a different color on the surface of a metal object. This is not true. Not only does rust destroy clothes but it is actually a process that eats away at metal weakening it. For many things, this is not a problem because the metal object is not expected to hold any weight. For load-bearing items, on the other hand, this can be extremely dangerous.
When the metal is eaten away by oxidation, it is weakened and unable to support as much weight. For items like bolts that hold chairs or decks together, this can be extremely dangerous as it can allow the item to collapse, injuring anyone on the deck or in the chair. (Continued)
Accelerated rusting is fairly common for roofs built before the 1990s. Nowadays, modernized manufacturing processes involve the use of zinc and aluminum coatings respectively called galvanized and galvalumed coating. Both materials are less susceptible to rusting and creates a protective corroded barrier as soon as rusting begins.
In this metal roofs guide, Straight Line Construction has a great explanation on these two types of roof coating below.
Durability – and Rust
In spite of its many proclaimed advantages, many people are still hesitant to invest in a metal roof for one reason: the possibility of rusting. No one wants to risk installing an expensive roof only to have it rust over after a few years. Do metal roofs really rust, or is it a common misconception? Let’s tackle that issue now and clear up everything once and for all.
Rust Resistant Roofing
Metal does rust – as do old roofs made of tin, aluminum, and steel. With the right protective coating, a metal roof can fight against oxidation and the formation of rust.
The Protection of Zinc
Zinc is often used as coating, and the process of applying it on the metal is called galvanization. Galvanized steel is simply steel is coated with zinc. With proper maintenance, galvanized steel can last over half a decade with no signs of rust or deterioration.
Zinc protects the metal in two ways (continued)
Over time, any metal roof will degrade and corrode especially if nearing the estimated end of life. However, re-coating is a new way to revitalize aging and worn-out metal roofing materials. Of course, you cannot just apply coating to breakage and unreliable aged or expired metal roofing.
Metal Construction News has a great explanation on how re-coating works and its help in improving your metal roof improve its longevity and performance.
Re-coating considerations
Building size, shape and composition do not typically affect metal roof re-coating. "Most metal roofs can be re-coated," says Arnold. "Building size, shape and composition may have some effect on the preparation process; however a coating system conforms to all sizes and shapes of a properly prepared metal substrate."Depending of the dynamics of the building or location, one of two methods-roller or spray application-will be the preferred re-coating method to yield desired results. Baumann believes... (continued)
If you're planning to replace your roof with a brand-new one, it helps to have the best roofers in Corpus Christi TX install it for you. The quality of metal roof materials make up only 50% of its lifespan -- the remaining half relies on the quality of its installation. If you haven't found one yet, you can depend on Galvan Builders. Contact us today to know more about our services.
See Full Artcile Here: Corpus Christi TX Metal Roofs Guide: Corrosion and Longevity
Galvan Builders Construction Company
4938 Williams Drive,
Corpus Christi TX 78411
361-857-4341
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