C70 - Aluminum windows

Hidden Casement system

System is designed for windows with high thermal insulation parameters. High efficiency was achieved by applying special thermal inserts slid between thermal separators and around the glass pane. There is an option of installing windows in facade systems or store fronts as well. Window system is available with hidden hinges and variety of hardware options. For those who value time and simplicity we recommend using additional Nailing Flange profile. Special fin is designed for simple and quick installation. This profile is frequently used by customers with additional trim resulting in further material and labor savings.


Open inwards:
Side hung, turn & tilt, tilt & parallel, bottom hung

Open outwards:
Side-hung, top hung projecting and hidden pivoting system
of either vertical or horizontal axis


Depth of frameStandard 2 3/4
Hidden Sash
2 3/4
Depth with leafStandard 3 1/16
Hidden Sash
2 3/4
Glazing rangeStandard 2 3/16
Hidden Sash1 9/16
Maximum size (W×H)Standard 59 1/16×102 3/8
Hidden Sash51 3/16 x 94 1/2
Max weightStandard 353lbs
Hidden Sash
353 lbs


Air Permeability
(EN 12207) CLASS 4
(EN 12208) CLASS E1500
Wind load resistance
(EN 12210) CLASS C5
Thermal insulation (Uf)
from 0,9 (W/m²K)
Maximum acoustic insulation
Rw=46 dB


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