When building or customizing a sunroom, choosing the right panels is one of the most important factors. The type of panel you select affects lighting performance, durability, safety, and long-term maintenance costs.
Nowadays, polycarbonate (PC) panels are one of the most widely recommanded materials for sunrooms due to their excellent light transmission, impact resistance, and weather durability.
However, many homeowners and project developers often concerns on two key questions:
- Should they choose domestic or imported PC panels?
- What panel thickness is the safest and most suitable?
This guide will help you understand the key differences and make the right decision for your sunroom project.
1. Sunroom Panel Materials: Domestic vs Imported PC Panels
Light Transmission and UV Resistance
Most domestic polycarbonate panels offer light transmission of around 80%, which is sufficient for daily lighting needs. However, after long-term exposure to ultraviolet rays, some panels may gradually lose transparency or develop surface haze.
In comparison, imported PC panels usually feature a more advanced UV co-extrusion layer. This protective layer significantly improves UV resistance and anti-aging performance, allowing the panels to maintain high transparency for many years.
This is one of the main reasons imported panels are typically more expensive.
Service Life and Durability
Domestic PC panels typically have a service life of about 5–8 years, making them suitable for projects with moderate budgets or temporary sunroom structures.
Imported PC panels can last 10–15 years or even longer, thanks to their stronger impact resistance, weather resistance, and structural stability.
Because of their durability, imported panels are often used in:
- Commercial sunroom installations
- Villa sunrooms
- High-end residential projects
- Large outdoor structures
Price and Application Scenarios
Domestic PC panels are more budget-friendly, making them suitable for:
- Standard residential sunrooms
- Backyard patio enclosures
- Small-scale projects
Imported PC panels are better suited for projects that require higher durability, longer lifespan, and premium quality, such as luxury homes or commercial installations.
2. How to Choose the Right PC Panel Thickness
For mobile sunrooms, panel thickness plays an important role in wind resistance, load-bearing capacity, and sliding performance.
Choosing the wrong thickness may cause problems such as:
- Structural deformation
- Water leakage
- Reduced safety performance
However, a common misconception is that thicker panels are always better. In reality, the best thickness depends on the installation environment and structural design.
Installation Environment Determines Panel Thickness
When selecting sunroom panels, it is important to consider wind load and snow load conditions.
Recommended guidelines include:
- High-rise buildings or coastal areas with strong winds
→ Recommended thickness: 8 mm or thicker PC panels - Standard residential patios, terraces, and courtyards
→ Recommended thickness: 4–6 mm PC panels - Snow-heavy regions
→ Thicker panels may be required to support snow load pressure
Choosing the right thickness ensures the sunroom structure remains stable and safe in different weather conditions.
Why Thicker Panels Are Not Always Better
Using excessively thick panels will increase the overall weight of the sunroom structure.
For mobile sunrooms, heavier panels may:
- Reduce sliding smoothness
- Increase wear on tracks and hardware
- Increase long-term maintenance costs
In most well-designed mobile sunrooms, 4–6 mm PC panels provide the best balance between strength, weight, and usability.
Choosing Panel Thickness Based on Budget
Different thickness options also affect the overall project cost.
Typical recommendations include:
- 4 mm PC panels
Suitable for temporary installations or budget-focused projects. - 6–8 mm PC panels
A better long-term investment offering improved durability and safety.
Whenever possible, prioritize environment suitability and structural safety over simply choosing the lowest price.
Conclusion: Choosing the Right Sunroom Panels
Selecting the right mobile sunrooms panels requires balancing material quality, panel thickness, budget, and installation environment.
In general:
- Choose domestic PC panels for cost-effective residential projects.
- Choose imported PC panels for premium installations and longer service life.
- Select panel thickness based on wind, snow load, and structural design rather than simply choosing the thickest option.
A scientifically selected mobile sunrooms panel system ensures better safety, longer lifespan, and improved user experience.
