The ENERsign window and door range is now available in the UK through the Green Building Store

As part of its Passivhaus range, ENERsign offers a U-value of 0.65 W/m2K. Certified by the Passivhaus Institute, ENERsign is suitable for designers working on Passivhaus as well as Code for Sustainable Homes levels five and six and any low-energy buildings.

ENERsign achieves its high thermal efficiency through design detailing including triple glazing with warm edge spacers, Neopor foam frame insulation and a rigid frame for maximum airtightness.

ENERsign also uses a composite design which combines fibreglass and timber to minimise frame size and maximise glass area. Viewed from the outside, the window features a narrow fibreglass frame while from the inside it offers the aesthetic appeal of an engineered timber frame.

Green Building Store