The Green Building Store has added a Passivhaus certified window to its range of products

The Green Building Store has added a Passivhaus certified window called Alphawin to its range of environmentally friendly building products. Developed by Austrian firm Optiwin, the company says it has a whole window value of 0.68W/m2K. The casement style window is made from timber with an outer aluminium facing and wood fibre insulation break. It is triple glazed with a slim, 90mm profile. A variety of glazing options are available to suit different building orientations.

Green Building Store
www.greenbuildingstore.co.uk

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