Glazing with low U-values are readily available on the market today. However, windows that combine low-U-values frames, wall integration possibilities with low or no thermal bridges and architecturally pleasing design at a reasonable cost are hard to find. Often building designers choose less efficient (with higher thermal losses) windows because of their appearance and price. In the Class 1 project the window manufacturer will develop innovative solutions to meet the low energy standards based on traditional windows for the Danish Market. The ultimate aim is to meet the requirements of those for passive housing which means a total U-value of 0,8 W/,m²K.

The above objectives have been met by the window manufacturer participating in the project.
Follow this link to the report/deliverable describing this development.

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