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Fenestra Primus is a pivoting opening wood-aluminium window with an aluminium clad frame and an external sash made of aluminium. If desired the windows can be equipped with air vents, sashes and hatches as well as insect screens, venetian blinds and decorative mouldings.
U-value with standard glass 1.0
U-value with special glass 0.85 (VTT estimated, measurement1230x1480)
Rw = 42-50 dB; Ctr = 35-47 dB