KLIMA-PUR Windows Pilots for Green Public Procurement Engagement for Heritage Buildings

KLIMA-PUR® Windows are a breakthrough in sustainable building envelopes. Made of BioPolyurethane, a lightweight and durable bio-based material, they outperform conventional frames:

• Energy efficiency (Uf = 0.8 W/m²K), 32% better than PVC.
• Acoustic damping (-10 dB), 55% better than timber.
• Durability (30–40 years) with low maintenance.
• Lightweight (400 kg/m³), 35% lighter than aluminium.
• Circular by design, up to 100% recyclable and repairable.

KLIMA-PUR offers the first affordable PassivHaus-certified window solution, enabling large-scale deployment in public housing renovation and heritage buildings, where strict performance, sustainability, and architectural integrity are required. Complementarily, bioPUR insulation for wall cavities enhances thermal and acoustic comfort, offering a holistic solution for deep renovation projects.