The strength of Rehau UPVC Casement Windows lies in their advanced construction. Manufactured using high-quality UPVC, these frames are designed to remain stable despite seasonal temperature changes. This stability prevents distortion, ensuring smooth operation and consistent sealing over time.
Within the frame, multiple internal chambers create an effective thermal barrier. These chambers trap air, reducing heat transfer and supporting improved insulation. At the same time, they help reduce external noise, making interior spaces quieter and more comfortable.