Two Techniques to Keeping Your Tin Roof Rust-Free
Posted on: 25 June 2018
Homeowners that want affordable metal roofing will typically lean toward a tin roof. This material provides outstanding durability, which reduces the likelihood of roof replacement for several decades. In addition to this, tin roofing is also remarkably fire resistant, making it ideally suited to bushfire prone areas in Australia. However, rust is a critical drawback for tin roofing. If you don't adequately maintain your roof, it can develop rust spots that will lead to the eventual corrosion of the entire roof structure. As a result, the roof weakens and develops gaps, holes and water ingress. The good news is that meticulous attention to surface maintenance can prevent this risk. Here are two main techniques you can employ for keeping your tin roof rust-free.
Paint the roof
While painting is not a precise technique to rust proofing your tin roof, it can be sufficient if you have limited resources and elect to perform this maintenance measure on a routine basis. To maximise your paint job, ensure that you start by using a zinc primer to coat the surface of the roof. Zinc is one of the elements that is highly resistant to rusting, so a primer that is rich in this compound will help mitigate the onset of corrosion even when the paint layer starts to exhibit minor chipping and cracking. When repainting the roof, always start with a clean surface so that debris does not create an uneven coating. It is also prudent to scrape away previous paint that could be lingering on the roof using a wire brush.
Apply an elastomeric coating
The second technique you could choose for rust prevention is investing in an elastomeric layer for your roofing. The result may look just like paint, but the application process is entirely different. Take note that an elastomeric coating comprises acrylic sealant in liquid form. Therefore, the sealant is applied directly on the roof surface, but this has to be done in several layers to ensure that you create a watertight layer. Although an elastomeric coating may cost more than just painting the roof, you won't have to perform this technique as frequently as painting since the layers stay intact for a considerable amount of time. In fact, the more layers applied, the longer the durability of the coating. Not to mention that elastomeric coatings come in an assortment of colour options, giving you the flexibility to change the appearance of your roof.
To learn more about keeping your roof rust-free, contact local metal roofing contractors.
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