The Perfect Polycarbonate Sheet to Build a Sunroom


If you want to create a new space that allows you to relax and enjoy the beauty of the outdoors, fresh air, and sunlight without leaving the comfort of your home, sunrooms are the perfect option. However, it is vital to consider the materials to achieve the ideal space that serves as a haven for stressful days or to enjoy the sunrise and sunset at any time of the year. One of the most used options today is the double-layer polycarbonate board.

Due its composition a sunroom needs large glass panels that allow the passage of light and will enable you to see the outside; today, we tell you why you should choose the twin wall polycarbonate sheets.

Let’s get started!

1. What are sunrooms?

A sunroom is an additional space to the house; it is a complementary room with frames and ceilings made with the same materials used for the rest of the property. However, the difference lies in its walls, which are large windows that allow you to take full advantage of natural light, breeze, nature, and birdsong without leaving your home.

2. What is the best polycarbonate sheet to use to build a sunroom?

Indeed, choosing polycarbonate was a simple decision since it is the leading material for the construction of sunrooms nowadays, as contractors, suppliers, and decorators recommend it. However, knowing which style to select for your project can be complex. There are different styles of polycarbonate panels, and each one fits the needs of specific projects. Which one works for sunrooms?

In the case of sunrooms, experts recommend the use of double-layer polycarbonate board (twin wall polycarbonate sheet), which is a high-strength sheet. The extrusion process produces a panel with a rigid structure and an impact resistance 250 times higher than glass and ten times better than other plastics on the market.

3. What are the characteristics of the twin wall polycarbonate sheet?

A twin wall polycarbonate comprises two outer pieces interconnected by an inner support of the same material, which allows both pieces to be parallel. This characteristic composition (layering method) raises the strength capacity of the panel; it is ideal for glass wall construction, which must support the weight of roofs or other structures and resist hail, weathering, and high temperatures.  

Other characteristics:

  • It is available in 7 levels of thickness (4mm, 6 mm, 10 mm up to 35 mm).
  • The sheets come in different sizes and can be cut according to your needs.
  • Superior insulation and does not deform with heat.
  • High resistance to weight and impact (practically unbreakable).
  • Lightweight and easy to handle (weighing 0.8 kg/m² depending on thickness).
  • Easy installation.

4. Why are twin wall polycarbonate panels perfect for sunrooms?

When you want to build a sunroom, you like to make the most of natural light but without the damage caused by direct exposure to UV rays, both to your skin and your furniture; for that reason, the twin wall polycarbonate panels have a UV protection layer coextruded on one side, which when installed facing outward ensures a safe exposure.

Even though they come in different colors, from the classic transparent to bronze or opal, these panels, by their composition, ensure an excellent transmission of sunlight to the interior up to 82%, so you don’t have to invest too much in artificial lighting.

Also, these panels help to create energy-efficient spaces, as they also have excellent thermal insulation capacity, ideal for seasonal changes; whether summer or winter, you can maintain the ideal internal temperature, which helps reduce electricity bills.

In addition, they adapt to different decoration styles, whether you need a completely flat design or slightly curved walls, as they have a radius of curve (from 600mm).


Ready to have your sunroom? Remember that the choice of panels, thickness, style, and color will depend on the needs and goals of your project and your budget. At Foshan Songxia, we will happily help you realize your vision with the best quality!