ENERSign windows

'• Ultra-efficient triple glazing offers whole window U values of 0.65 W/m2K

• Certified by the Passivhaus Institut, Germany.

• Low maintenance fibreglass exterior, timber interior.

• High insulation values achieved through design detailing, including: Neopor foam insulant; warm edge spacers; airtightness detailing.

• Inward opening tilt & turn windows.'