Option 1: Anti-Dirt Coating for walk on glass

A Ritec coating can be easily applied to glass to help water run off more quickly. While this coating keeps the glass completely transparent, it does not make it rougher or directly provide anti-slip properties. So, what does Ritec do?

In short, Ritec ensures that:

• Slippery dirt does not adhere to the glass.
• The glass dries faster.

Dry glass treated with Ritec achieves a PTV (Pendulum Test Value) well above the required 36 for sufficient slip resistance. However, it is important to note that when the glass is wet, it still remains slippery, even with a Ritec coating.

How Does Ritec Work?

Although glass appears smooth to the naked eye, microscopic examination reveals a rough surface that allows dirt, salt, and lime to adhere easily. When a Ritec ClearShield coating is applied, it creates a protective polymer layer that bonds strongly to the glass while also reinforcing itself. This makes the glass:

• Smoother and easier to clean.
• More resistant to wear and environmental damage.

Does Ritec Improve Slip Resistance?

While the coating forms a durable bond with the glass, making it highly wear-resistant, it does not significantly improve slip resistance when the glass is wet.

Understanding Anti-Slip Ratings (HSE & PTV)

Both untreated glass and Ritec-coated glass have an average slip risk value (HSE Slip Risk) of 23, which is considered moderate. When dry, Ritec-treated glass performs better than untreated glass, but when wet, it still presents a high risk of slipping.

Option 2: Sandblasted or etched glass

Another solution is to sandblast or etch the glass surface. This method provides an anti-slip rating of 50—slightly lower than the most advanced option (frit dot pattern) but well above the required threshold of 36 for effective slip resistance.

This is a relatively cost-effective solution. However, it affects the transparency of the glass. While the amount of light transmission remains nearly the same, the light becomes more diffused.

• Patterned design
  By applying a pattern, as shown in the image below, certain areas of the glass remain clear, allowing visibility while adding an elegant design.
• Full surface frosting
  If the entire glass surface is sandblasted or etched, it becomes fully frosted, making it opaque. This enhances privacy while maintaining a stylish, modern look.

Option 3: Frit Dot Pattern

The most expensive but most effective option is the application of a ceramic pattern, known as a frit dot pattern. Using a laser, 8mm rough ceramic dots are fused onto the glass. This can be done in a uniform pattern or customized into specific designs, such as a logo.

While this method offers the highest anti-slip rating of 60, it also reduces brightness by approximately 40% compared to the first solution, though the overall light transmission remains unchanged. Despite the cost, it is the best-performing option for ensuring safety on walkable glass surfaces.

Which glass specifications are right for your project?

Glass standards vary by country and application. Dutch Roof Design offers expert advice to help you select the best glass specifications for your project, ensuring optimal performance and compliance with local standards.