Waterproofing a Balcony with Polyurethane Resin

A terrace or balcony is a space often associated with relaxation. However, it's challenging to unwind in an area that doesn't appeal to us. Whether you're planning a renovation or a new design, the finish of the balcony or terrace is critical.

While most people choose ceramic tiles, if you're looking for a standout decoration, consider a resin floor finish.

Advantages of Resin for Balconies and Terraces

Resins have numerous benefits. When opting to use them, ensure they are resistant to weather conditions. These products are waterproof and heat-resistant, so they won't melt under the sun. Thanks to their consistency, resins are ideal for insulating tricky elements like plinths and balusters. They're also durable, flexible, and can be finished with anti-slip properties—a significant safety feature for balconies.

From an aesthetic perspective, resin is available in many color options and finishes, including glossy, semi-matte, and matte. Additional decorative effects can be achieved with flakes, pebbles, chips, or glitter in various colors and sizes. A seamless finish adds to the appeal, avoiding unsightly joints prone to wear and tear.

Which Resin Should You Choose?

Several types of synthetic resins are available, each suited for specific applications. For balconies and terraces, polyurethane and epoxy resin floors are the most popular choices.

• Epoxy Resin:
  Known for its high mechanical and chemical resistance, epoxy resin is the budget-friendly option. However, it has drawbacks—it’s not UV-resistant, which causes yellowing over time, and patterns from railings or balustrades can imprint, leading to cracks and deterioration.
• Polyurethane Resin:
  The best choice for balconies and terraces, polyurethane resin is UV-resistant and can withstand other weather conditions. Its flexible coating pairs well with concrete substrates. Though more expensive, its quality justifies the price. Polyurethane resin floors resist discoloration and won't yellow over time.

Features of Polyurethane Resin Flooring

• UV resistance
• Fire resistance
• Flexibility
• Temperature resistance (-20°C to 80°C)
• Seamless finish
• Stain resistance
• Durability
• Waterproofing
• Resistance to chemicals
• Easy maintenance and cleaning

Which Materials to Use for Waterproofing a Polyurethane Resin Balcony?

When planning a polyurethane resin balcony, it’s crucial to choose high-quality waterproofing materials designed for such finishes. Here are some recommendations:

• Polyurethane-based waterproofing membranes
• Elastic hybrid sealants
• Primers suited for resin applications

Ensure all materials are suitable for the expected environmental conditions, including UV exposure and temperature fluctuations, to maximize the longevity and performance of your balcony or terrace.