Passive

Fenestra Passive is a pivoting wood-aluminum window with an aluminum clad frame and an external aluminum sash.  The frame of which is covered with an aluminum profile and the outer frame made from aluminum. A special solution in the internal sash permits using wider glazing assembly spacers which results in superb U-values. If desired the windows can be equipped with air vents, sashes and hatches as well as insect screens, venetian blinds and decorative mouldings.

Heat retention:
U-value 0.75 (VTT estimated, measurement 1230x1480)
 
Assumed noise insulation: 
Rw = 42-48 dB, Ctr= 35-45 dB
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