Building decking on the rooftop of your home is one you can create a relaxation space on your flat rooftop. But building a composite decking high up your roof will expose it to the elements. Unlike ground-level decking that might be protected from the elements, rooftop decking is exposed to low ventilation, moisture and direct sunlight. That is why using the best decking material for your rooftop decking is crucial. But what material should homeowners use to build a rooftop decking? Just like ground-level decking, you must use a durable decking material. This write-up answers the question, what material should I use for my rooftop decking?

Various Decking Materials

The materials you will use for rooftop decking is similar to ground-level decking. There are various decking materials that you can use to build decking on your roof or in your garden. Composite decking is one material, and homeowners consider it to be the best rooftop and ground-level decking. That is why we mentioned composite decking first. Another decking material is wood or timber decking. 

Composite Decking on Rooftop

rooftop decking

The most vulnerable area in your home that you can install decking is on your rooftop. That is why installing durable decking is crucial. Composite decking is not only aesthetically pleasing; it is durable and strong. The right kind of composite decking boards to use are thick and narrow boards. This decking has the strength and firmness to survive the harshest condition. The materials engineers used to produce composite decking are wood and plastic.

 Both wood and plastic materials are recycled, making composite decking environmentally friendly. As a composite, composite decking is stronger and better resistant to the elements of nature. Since rooftop decking is exposed to moisture, installing wood-plastic decking is the best option. Wood-plastic decking is better resistant to water from rain or moisture from dew. The surface of plastic wood decking is coated with plastic that stops water from infiltrating the decking. Another benefit of wood-plastic decking is that the sun’s UV rays will not fade the colour like timber. 

When making composite decking, engineers coat the surface with paint to make it attractive. After installing the board, the colour of wood-plastic decking will not fade because of the sun’s UV rays. Composite wood decking has a slip-resistant surface that makes falling off your decking less likely. We cannot overlook the aesthetic value of composite decking. Installing wood-plastic decking on the roof of your home will make it the perfect space to relax. The serenity plastic wood decking creates makes it a must-install decking on every flat rooftop. 

Wood or Timber Decking on Rooftop

Timber decking is divided into softwood and hardwood decking. The major difference between softwood and hardwood decking is that the former needs chemical treatment while the latter doesn’t. While installing wood decking is cheaper than composite, the latter offers a high value for your cash than the former. As the traditional decking material, wood decking can be installed on a rooftop and the ground. But the downsides of wood decking are many. 

Maintenance is one of the downsides of timber decking because you have to spend cash and waste time cleaning the decking. Aside from that, homeowners must seal, sand and paint their timber after installing it on the rooftop of their home. Doing these maintenance tasks on the rooftop will be difficult, unlike composite that is resistant to the elements; timber decking, whether softwood or hardwood, will eventually degrade after you have installed it. 

Moisture will enter the boards and make them swell. The UV rays of the sun will fade the top of your timber decking quickly. This makes the painting or staining wood decking necessary every time you maintain it. In general, timber decking will splinter, break, crack or warp after you have installed it and installing it high up your roof will further make it less durable.

Plastic Decking on Rooftop

Plastic is a water-resistant material. Making a decking with plastic further increases the water-resistant property of the decking. Plastic decking boards are made from PVC material. The feature or characteristics of plastic decking is similar to composite decking. Like wood-plastic decking, PVC boards will not absorb water and swell. Also, PVC boards will not crack, splinter or break after installing them on your roof. Maintaining plastic decking is easier and less stressful than timber decking. There is no need to paint or stain, seal or sand the surface of your plastic decking. 


What material should I use for my rooftop decking? A rooftop requires a durable decking material that can withstand the elements. Composite decking is one material that homeowners can install on the rooftop of their home.

Leave a Reply

Your email address will not be published. Required fields are marked *

Your email address will not be published. Required fields are marked *