C70US - Aluminum windows

Hidden Casement system

Thermal insulation Uf
from 0,9 W/(m2K)
Air tightness window
class 4
class 5 E1500
Wind tightness
class C5
  • Hinged hidden sash window system with frame depth of 2 3/4 in
  • Seen surface of only 2 3/4 in from the outside
  • Maximun glazing surface
  • Extraordinary increase in luminosity
  • Possibility of incorporating hardware with concealed hinges
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» Maximum glazing thickness

35 mm

» Opening possibilities
Side hung, turn & tilt of 1 or 2 sashes, tilt & parallel, bottom hung


Depth of frame 
Depth of leaf 
Glazing rangeframe: up to 2 3/4
sash: up to 3 5/64

Size & Weight Limitations

Maximum size (H×W)H to 102  1/3 W to 59
Max weight lbs220
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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