When choosing solid polycarbonate for a roofing project, one of the most important factors to consider is the thickness of the material. The right thickness will depend on the specific application, the level of strength required, and the weather conditions the roof will be exposed to.
In this guide, we’ll explore the different thickness options for solid polycarbonate roofing and help you determine the best choice for your project.
Why Choose Solid Polycarbonate for Roofing?
Solid polycarbonate is a highly durable and impact-resistant material that is commonly used for roofing applications. Unlike glass, it is lightweight and shatterproof, making it ideal for areas that require both transparency and strength. Polycarbonate roofing also offers excellent UV resistance, helping to protect against sun damage while allowing natural light to pass through.
Common Thicknesses of Solid Polycarbonate for Roofing
2mm - 4mm Solid Polycarbonate
- Best for: Small, lightweight applications such as shed windows or secondary glazing.
- Pros: Affordable, lightweight, and easy to work with.
- Cons: Too thin for structural roofing applications, limited durability.
5mm - 6mm Solid Polycarbonate
- Best for: Canopies, covered walkways, and lightweight roofing projects.
- Pros: Provides better strength while still being relatively easy to cut and install.
- Cons: May not provide enough impact resistance for high-exposure areas.
8mm - 10mm Solid Polycarbonate
- Best for: Carports, conservatories, greenhouses, and pergolas.
- Pros: Strong enough to withstand moderate weather conditions, good impact resistance.
- Cons: Slightly heavier and more expensive than thinner sheets.
12mm - 16mm Solid Polycarbonate
- Best for: Industrial roofing, high-impact areas, and regions with extreme weather conditions.
- Pros: Exceptional strength, can withstand strong winds and heavy rain.
- Cons: More expensive and requires strong support structures.
20mm+ Solid Polycarbonate
- Best for: Commercial buildings, public spaces, and high-security applications.
- Pros: Maximum impact resistance, excellent insulation, long-lasting.
- Cons: Higher cost, requires professional installation.
Choosing the Right Thickness for Your Roof
When deciding on the ideal thickness for your solid polycarbonate roof, consider the following factors:
- Weather Conditions: If your area experiences heavy rain, hail, or snow, opt for a thicker sheet for better durability.
- Load-Bearing Requirements: If the roof needs to support additional weight (e.g., snow accumulation), go for 10mm+ sheets.
- Aesthetic and Light Transmission: Thicker sheets reduce light transmission slightly, so balance durability with your lighting needs.
- Budget and Installation: Thicker sheets cost more and may require stronger support structures, so factor this into your decision.
Final Thoughts
For most domestic roofing applications such as pergolas, conservatories, and carports, 8mm to 10mm solid polycarbonate is a great choice. If you need a stronger and more impact-resistant solution, consider 12mm or thicker sheets.
If you’re unsure which thickness to choose, it’s always best to consult with a supplier or roofing specialist to ensure you get the right material for your project.