Grandproof PU 205 Cool Roof Waterproofing Coating

Grandproof PU 205 is a high-performance, single-component waterproofing coating engineered specifically for flat and low-slope roofs. By combining the flexibility and durability of polyurethane with the UV resistance and ease of application of acrylic dispersions, it creates a seamless, elastic membrane that withstands thermal expansion, contraction, and harsh weather conditions.

As a 'cool roof' product, PU 205 features high solar reflectivity, which significantly reduces heat absorption. This helps lower indoor temperatures, reduce air conditioning loads, and extend the service life of the underlying roof structure by minimizing thermal stress.

Key Features & Benefits

• Single-Component System: Ready-to-use formulation that simplifies application without the need for mixing or mixing ratios.
• High Elasticity: Polyurethane modification allows the coating to bridge hairline cracks and accommodate substrate movement.
• Cool Roof Technology: High albedo surface reflects solar radiation, reducing roof surface temperature and energy consumption.
• UV & Weather Resistant: Formulated to resist chalking, fading, and degradation from prolonged sun exposure.
• Waterproof Barrier: Provides a continuous, non-porous membrane against water infiltration.

Ideal for concrete, cementitious, and bituminous roof surfaces in commercial, industrial, and residential buildings. Apply over a clean, dry, and sound substrate for optimal adhesion and performance.