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MasterLine 8 system offers a wide design range regarding thermal insulation and air- and water tightness. This new generation of innovative window solutions mirrors the current architectural trend towards maximising daylight while offering ultimate insulation levels. MasterLine 8 features 3 different levels of insulation (standard, HI and HI+) for high insulated, low energy and passive houses. These different levels are due to small differences in the internal structure of the frame. In addition, HI and HI+ both contain an extra isolating foam. In this EPD the standard version is used. A window with dimensions of 1,23 m x 1,48 m (1,82 m2) has a transparent (glass) surface of 1,30 m2. Or, the ‘glass to frame’-ratio of the Masterline 8 is 2,50. Double glazing is used in the product.