Is it Possible to Put Decking on the Rooftop?


If you have a rooftop space that’s going unused, you might be wondering if it’s possible to put decking on the rooftop to create a functional outdoor space. The good news is that it is possible, and in fact, rooftop decking is becoming increasingly popular in urban areas where outdoor space is at a premium. In this article, we’ll explore the benefits of rooftop decking, the challenges you might face, and the solutions that can help you create a beautiful and functional rooftop space.

Benefits of Rooftop Decking

There are several benefits to installing decking on your rooftop. First and foremost, it creates a usable outdoor space that you can enjoy with family and friends. Whether you’re grilling, sunbathing, or just relaxing with a good book, a rooftop deck gives you a private outdoor oasis right in the heart of the city.

Rooftop decking can also add value to your home or property. According to several reports in the industry, outdoor living spaces like decks and patios are highly desirable to homebuyers. By installing a rooftop deck, you can increase your home’s curb appeal and attract potential buyers.

Challenges of Rooftop Decking

While there are many benefits to rooftop decking, there are also some challenges to consider. One of the biggest challenges is ensuring that the rooftop can support the weight of the deck, furniture, and people. Before installing a rooftop deck, you’ll need to have a professional engineer inspect the roof to determine its load-bearing capacity.

Another challenge is ensuring that the deck is waterproof and properly sealed to prevent leaks. A rooftop deck is exposed to the elements, including rain, snow, and wind, so it’s important to choose materials that can withstand harsh weather conditions. You’ll also need to ensure that the deck is properly sloped to allow for drainage and prevent water from pooling on the surface.

Solutions for Rooftop Decking

Despite the challenges, there are solutions to make rooftop decking a reality. One solution is to use a lightweight rooftop decking material that won’t add too much weight to the rooftop. Composite decking, for example, is a popular choice for rooftop decks because it’s durable, low-maintenance, and lightweight.

Another solution is to use pedestal systems that elevate the deck off the rooftop surface. Pedestal systems allow air and water to circulate beneath the deck, which can help prevent moisture buildup and extend the life of the deck. Additionally, pedestal systems can make it easier to level the deck on an uneven roof top surface.

Finally, it’s important to work with professionals who have experience installing rooftop decks. A professional contractor can ensure that the deck is properly supported and sealed, and can offer guidance on materials and design options that are suitable for rooftop installations.


Rooftop decking is a viable option for creating a functional outdoor space in urban areas. While there are challenges to consider, such as weight capacity and waterproofing, there are also solutions, such as lightweight materials and pedestal systems, that can make rooftop decking a reality. With the help of a professional contractor and a little bit of planning, you can transform your rooftop into a beautiful and functional oasis that you’ll enjoy for years to come.