Why GFRPU is Ideal for Passive House Windows

Engineered for Passive House — delivering superior thermal performance, structural efficiency, and long-term durability. Designed for High-Performance Building Envelopes Glass Fiber Reinforced Polyure

Engineered for Passive House — delivering superior thermal performance, structural efficiency, and long-term durability.

Designed for High-Performance Building Envelopes

Glass Fiber Reinforced Polyurethane (GFRPU) profiles are engineered to meet the demanding requirements of Passive House and other high-performance building standards.

Key Advantages for Passive House Applications

1. Superior Thermal Performance

With low thermal conductivity and no thermal bridging effect, GFRPU profiles significantly reduce heat transfer and help achieve low U-values required for Passive House windows.

2. Excellent Dimensional Stability

A low coefficient of thermal expansion ensures minimal deformation under temperature fluctuations, maintaining airtightness and long-term sealing performance.

3. High Strength with Lightweight Structure

The high strength-to-weight ratio enables slim yet strong profiles, supporting large glazing areas while maintaining structural integrity.

4. Outstanding Airtightness Potential

Precision manufacturing and stable material properties contribute to excellent air tightness, a critical requirement for Passive House certification.

5. Corrosion Resistance & Durability

GFRPU profiles are highly resistant to moisture, chemicals, and salt exposure, making them ideal for long-term performance in harsh environments, including coastal regions.

Supporting Advanced Glazing Systems

GFRPU profiles are fully compatible with:

Triple glazing systems

Low-E insulated glass units (IGUs)

High-performance sealing systems

Enabling window systems to meet stringent energy efficiency targets.

Contribution to Energy Efficiency

By improving the overall thermal performance of the window system, GFRPU helps:

Reduce heating and cooling demand

Lower energy consumption

Enhance indoor comfort