Windows

There are two types of three-pane windows. One type is operable. It is glazed with two low-emissiv-ity coatings. One of the gaps between the panes is filled with argon, the other with air. The other window type is fixed. It is glazed with two low-emissivity coatings. Both gaps are filled with krypton gas. The energy transmittance is circa 50 per cent and the visual transmittance is 64 per cent for the operable window and 68 per cent for the fixed. The mean U-value of the windows for a house unit is 0.85 W/m2K.

Source: Maria Wall

Figure 2.2.3 Windows in the end wall

Source: Maria Wall

Figure 2.2.3 Windows in the end wall

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