Choosing the right PVC corrugated roofing sheet thickness is one of the most important decisions when planning a roofing project. Whether you’re covering a garden shed, greenhouse, carport, or patio, selecting the correct thickness ensures durability, weather resistance, and long-term performance.
PVC roofing sheets are commonly available in 0.8mm, 1.1mm, and 1.3mm thicknesses. Each option is designed for different applications, budgets, and exposure levels. In this guide, we’ll break down the differences so you can confidently choose the right PVC sheet for your project.
Why PVC Roofing Sheet Thickness Matters
The thickness of a PVC corrugated roof sheet directly affects:
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Strength and rigidity
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Resistance to wind and impact
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Longevity and durability
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Suitability for different roof sizes
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Overall value for money
Using a sheet that’s too thin for your application can lead to flexing or movement, while choosing a thicker sheet than necessary may increase costs unnecessarily. Matching thickness to your project is key.
0.8mm PVC Corrugated Roof Sheets – Lightweight & Cost-Effective
Best for:
Small, lightweight structures and DIY projects
Ideal Applications
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Garden sheds
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Lean-tos
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Cold frames
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Canopies
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Playhouses
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Small storage buildings
Key Benefits
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Lightweight and easy to handle
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Simple to cut and install
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Most affordable PVC roofing option
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Ideal for DIY users
Things to Consider
0.8mm PVC sheets are flexible and work best on smaller roof spans or sheltered areas. They’re perfect where weight and budget are priorities, but may not be suitable for exposed locations with high wind loads.
Choose 0.8mm PVC roofing sheets if:
You’re working on a small project, want a budget-friendly solution, and don’t need maximum strength.
1.1mm PVC Corrugated Roof Sheets – Balanced Strength & Flexibility
Best for:
Medium-sized structures needing added durability
Ideal Applications
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Greenhouses
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Workshops
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Garages
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Garden offices
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Medium-sized sheds
Key Benefits
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Improved rigidity compared to 0.8mm
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Better wind resistance
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Still lightweight and easy to install
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Excellent balance of price and performance
Things to Consider
1.1mm PVC corrugated sheets are a popular choice because they offer greater strength without excessive weight. They’re suitable for most domestic roofing projects and perform well in typical UK weather conditions.
Choose 1.1mm PVC roofing sheets if:
You want a strong, versatile option suitable for year-round use and moderate exposure.
1.3mm PVC Corrugated Roof Sheets – Heavy-Duty & Long-Lasting
Best for:
Large structures and exposed environments
Ideal Applications
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Carports
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Large sheds
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Agricultural buildings
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Commercial structures
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Areas exposed to strong wind and weather
Key Benefits
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Maximum strength and rigidity
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Excellent impact and wind resistance
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Longest lifespan
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Reduced movement and flexing
Things to Consider
1.3mm PVC sheets are the strongest and most durable option. They’re ideal for large roof spans or locations exposed to harsh weather. While slightly higher in cost, they offer excellent long-term value.
Choose 1.3mm PVC roofing sheets if:
You need maximum durability, minimal movement, and a roof built to last.
Thickness Comparison at a Glance
| Thickness | Best For | Strength | Cost | Recommended Use |
|---|---|---|---|---|
| 0.8mm | Small DIY projects | Light | £ | Sheds, canopies |
| 1.1mm | Medium structures | Medium | ££ | Garages, greenhouses |
| 1.3mm | Large/exposed roofs | Heavy-duty | £££ | Carports, workshops |
Other Factors to Consider When Choosing PVC Roofing
Roof Size & Span
Larger roof spans benefit from thicker sheets to reduce flexing.
Location & Exposure
Windy or exposed areas require stronger sheets, typically 1.1mm or 1.3mm.
Fixings & Accessories
Always use compatible PVC roofing fixings and fillers to maximise performance and lifespan.
Light Transmission
Clear or translucent PVC sheets are available in all thicknesses, allowing natural light while maintaining strength.
Which PVC Corrugated Sheet Thickness Should You Choose?
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Choose 0.8mm for small, sheltered DIY projects
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Choose 1.1mm for most domestic roofing needs
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Choose 1.3mm for large, exposed, or heavy-duty applications
If you’re unsure, it’s often worth choosing the next thickness up for added peace of mind and long-term durability.
Buy PVC Corrugated Roofing Sheets with Confidence
At PVCsheets.co.uk, we stock high-quality PVC corrugated roof sheets in 0.8mm, 1.1mm, and 1.3mm thicknesses, all available with fast nationwide UK delivery. Our range is suitable for sheds, greenhouses, garages, patios, and commercial projects, backed by excellent customer reviews and competitive pricing.
Final Thoughts
Choosing the right thickness of PVC corrugated roofing sheet ensures your roof performs reliably for years to come. By understanding the differences between 0.8mm, 1.1mm, and 1.3mm, you can make a confident, informed decision that matches your project needs and budget.
Explore our PVC roofing range today and get fast delivery straight to your door.
