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Polycarbonate vs Metal Roof: Which is Better?


Whether it’s for your pergola, patio or carport, the choice of roofing material can make a huge difference not just on the resulting appearance but also on the level of protection and longevity the material can offer. After all, roofing is both for protection and architectural improvement.

Which is better then: polycarbonate or metal material? Which of these roofing materials will deliver greater value as well as endure the harsh outside elements including random objects hitting the roof?

Polycarbonate vs metal roof

First, both metal and polycarbonate are sturdy which is why they’re both popular material choices. Once installed, they can’t be bent or damaged easily because of their strength and hardness. Their durability allows them to withstand outside elements and last reasonably long without the need for immediate replacement.

Keep in mind though that the metal’s strength and durability is partly due to the coating applied. The coating acts as a protective layer against corrosion and scratches. For years the damage might not be noticeable but due to constant exposure to heat, wind, dust and other elements, the metal material can still deteriorate or change in appearance. As a result, regular maintenance is required to maintain the metal roofing’s appearance and integrity.

On the other hand, polycarbonate material requires less maintenance because polymers and plastic materials are relatively inert. One reason is that the atoms are locked in which doesn’t allow them to react with oxygen and water (in contrast with metal). This is one huge reason why plastics are ideal materials for packaging (plastic doesn’t readily react with both the product and the outside environment). Furthermore, plastics only appeared recently which is why decomposers haven’t evolved to consume them. Aside from being strong, tough and inert, polycarbonate and other plastic materials allow visible light to pass through. This allows you to have a pergola or carport without sacrificing the view of the sky and making even the car or what’s in the pergola more visible.

Metal roofing is still a great choice because it allows covering and privacy. There are also several options when it comes to the metal and coating. Also, the preference for metal roofing could also be due to consistency (e.g. maintaining a metallic and private appearance). In addition, homeowners and business owners place a higher trust level on the metal’s proven strength and durability.

Each material has its own strengths and weaknesses. It’s important to ask your contractor or get competent advice when it comes to choice of material and whether they’re ideal for your particular property or site. In addition, the strength and longevity of the roofing material heavily depend on the quality and how they’re installed. This way, you can fully exploit the advantages of your chosen material. You can contact us here at Kingstone Building Material Supplies Pty Ltd for such matters. We will carefully weigh the pros and cons as well as focus on your requirements and vision for your carport, patio or pergola.