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What Material Should I Use for My Rooftop Decking?

When it comes to building a rooftop deck, the correct choice of material is important. The material for any roof decking should be durable and long-lasting. To help you, we have drafted this article to help you make the best-informed choice.

Roof Decking Materials

There are different types of materials that you can use to build decking on your rooftop. You can use the same decking material as ground decking. Examples of outdoor flooring materials are wood, timber, PVC and composite decking. These types of outdoor flooring are the most common decking materials available on the market.

1 Composite Decking

Composite is regarded as the best flooring material to use when building a decking area. In the main due to its durability and long service life. Notwithstanding its strength, high resistant to water and wood eating insects making it superior to timber and PVC decking.

Capped or shielded composite decking offers additional protection from the sun’s harmful UV rays helping to further minimise colour fade*.

Additionally, composite decking will not require painting or staining like wood. In addition to its durable long-lasting benefits, homeowners also value composite decking for its beauty and aesthetics.

2 Wood and Timber Decking

Timber decking is a traditional decking material you can install on the ground or rooftop of your home. You can use either treated wood, cedar, redwood or IPE for wood decking. Timber decking is generally a cheaper option with less value compared to composite decking boards.

In terms of aesthetics, wood fades on exposure to UV rays. To maintain the look of timber, you will need to annually apply stains or paint it to protect it from the elements and keep it looking good for longer.

Wood decking can warp, break or splinter over years of use. Wood decking will absorb water and moisture and swell when humidity is high, leading to possible splintering, cracking and even failure. Furthermore, wood decking is also susceptible to insect damage and maintaining wood decking is timely and costly. Wood decking shouldn’t be your first-choice rooftop decking material unless you are on a tight budget.

3 Plastic Decking

Plastic or PVC decking contains 100% plastic, making it a waterproof decking material, but also the most expensive type of decking material you can use for ground and rooftop decking. Similar to composite decking, plastic is also resistant to rot. It is durable and will not warp, crack or splinter like wood. PVC decking has similar features to composite decking, but the latter has a longer lifespan than the former.

PVC is a good decking material you can use for rooftop decking. Using plastic is less stressful and also easier to maintain, like composite decking. You do not have to worry about applying paint or stain, seal or sand to the surface of your plastic decking. It is worth noting that PVC decking does not offer up the same beauty and natural wood appearance as some good quality composite decking’s do.


A rooftop decking material should be durable and easy to maintain with an extended lifespan. Compared to wood and PVC, composite decking is your best option.

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