You can put a deck on your roof. There are a lot of benefits to putting a deck on a roof. You will be able to sit on your roof and enjoy the view when you add wood plastic. A functional space where you and your family can relax, dine and enjoy a wide view of the landscape will be created by adding a deck on your rooftop. If you want your roof to hold more weight, you have to make sure it can. The write-up explains how homeowners can create a functional space on their roofs. 

Advantages of composite decking on roof

There are a lot of advantages to installing a wood plastic deck on your roof. 

Enjoy rooftop activities 

One of the benefits is that you can have a rooftop activity on your roof. Homeowners like the beauty and aesthetic value of wood plastic. You will be more likely to stay on the roof if you build a wood plastic deck on it. When you build a deck on your roof, it will be a functional space. If you abandon your flat rooftop and leave it to the elements, the space will become useless. You will find reasons to do outdoor activities on your roof when a beautiful composite deck is installed on it. 

Prevent leaks

Adding a deck to your roof will make it better. If you abandon the roof you will have to let the rain settle on the flat surface. Adding a wood plastic composite deck will make you care for your rooftop and prevent leaks. You should check the strength of the roof before you start building on it. 55 lbs per square foot is the weight that your flat rooftop must be able to support. If the supporting structure is not strong enough, then you should not build wood plastic. It might be helpful to support the structure that holds the roof. 


  • Before laying the deck boards, you should seal the roof to make sure it’s strong enough to support the wood. It’s a good idea to seal the wood plastic deck surface to prevent water from soaking the roof after being installed. 
  • If you want to make your roof watertight, you need to install a rubber gasket over the surface of the roof. The rubber will prevent water from entering your roof. A leaking roof can weaken the structure of your roof wall. Adding wood on the roof will make it last longer. 
  • The sleeper system is what you will place the deck structure on. Instead of placing the frame or substructure directly on your roof surface, a sleeper system will ensure that your deck has breathing space to allow air flow.
  • You can use timber or metal in your deck. You should place the system at least 16 inches apart. The substructure of your deck is the frame. The outer frame panels are part of it. You have to build your deck’s substructure before you lay the frame. You can add wood plastic boards to the frame. After you have built the frame, you should add wood-plastic composites to the substructure. 
  • When the temperature goes up, make sure the boards are at least 5 mm apart. After installation, tidying the top of your finished deck will help maintain a clean surface. 


Can I put something on my roof? You can add wood plastic to your roof. Ensure that your roof is strong enough to hold the weight of the deck and seal it to prevent leaks.

Read more: Does composite decking need a base?

Read more: What is the best material to use in your garden?

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