A 84 Passivhaus HI
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Delivery & Returns
- Orders over £300
- Free UK delivery
- Tiles & flooring orders
- £60 flat rate per order
- All other orders
- £100 flat rate per order
- Delivery time
- Up to 20 business days • Fully tracked
- Returns window
- 14 days from receipt, in-stock items in original condition
84 mm depth hinged system with 6 chambers that offers the best thermal performance on the market, achieving a thermal transmittance value Uw from only 0.66 W/m²K. This series has been certified by the Passivhaus Institute for the cool-temperate category (cold and temperate climates), making it an ideal solution for low-energy buildings. It incorporates special insulating foams in the frame and sash, eliminating the need for steel reinforcement to improve transmittance. The glazing assumes the structural function of the window, being fixed to the profile using a special adhesive tape.
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