Window System CT 70 AS

Schüco CT 70

The PVC-U system Schüco CT 70 AS with rebate gasket is based on a 5-chamber technology. Excellent thermal insulation properties and narrow face widths in three different vent contours are the distinctive features of this system.

Schüco CT 70 AS window systems are suitable for a wide variety of uses in both new-build and renovation projects. An extensive range of accessories ensures a high level of system security.

The two drainage levels guarantee an optimum protection aginst wind, rain and noise.

Silver-grey gaskets on white profiles for discreet appearance

White Schüco CT 70 PVC-U profiles are delivered with modern, silver-grey gaskets for a discreet appearance. Foiled profiles are equipped with black gaskets.

Profiles can be coloured with a large selection of single colour and woodgrain decorative foils, Schüco AutomotiveFinish and Schüco TopAlu.


Fabrication benefits

  • Gaskets made of EPDM rubber are machine-rolled in the factory
  • Depending on structural requirements, different reinforcing profiles in the outer and vent frames ensure that the windows are highly robust and durable
  • Special screw ports for fixing the corner pivot in the vent
  • Vent profiles are available in different contours (Classic, Rondo, Cava and Accent)
  • Gaskets rolled in the factory with equal cross sections for glazing and external rebate gaskets

Technical information

System basic depth70 mm
Min. face width120 mm
Uf value of frame (≥)1.2 W/(m²·K)
Max. glass/panel thickness40 mm
Max. vent width1500 mm
Max. vent height2600 mm
Max. sound reduction Rwp46 dB(A)
Air permeabilityClass 4
WatertightnessClass 9A
Burglar resistanceUp to RC2
Wind load resistanceClass C5 / B5
Max. vent weight250 kg
Min.-max. vent height400…2600 mm
Min.-max. vent width400…1500 mm
Min.-max. glass/panel thickness6…40 mm
Surface finishesTopAlu, Decorative foils, AutomotiveFinish


[K1] Corona CT 70 AS

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[K2] Corona CT 70 MD

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[K4] CT 70 doortreshold

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Specification texts

Schüco CT 70 AS Classic, thermally insulated PVC-U window system
Rebated system with a basic depth of 70 mm

Rebate gasket system with the following design features:
5 chamber construction with galvanised steel reinforcements
Glazing and rebate gaskets, EPDM, flush-fitted to the profile, UV and weather-resistant, silver-grey
20 mm rebate on room side between vent frame and frame level
Uniform 8 mm vent overlap, 18 mm glass edge cover, all profile edges are rounded
External rebated vent frame.

Profile depths:
Outer frame, mullion, transom: 70 mm
Vent frame: 70 mm

Profile face widths:
Outer frame: 68 mm
Mullion / transom: 91 mm
Mullion / transom, window door: 110 mm
Vent frame, window (outside view): 52 mm
Double-vent profile: 53 mm
Double-vent profile, window door: 70 mm
Vent sash bar: 70 mm
Vent sash bar, window door: 147 mm


Test documents

Document type Test type Result Classification Document no. / Download
Prüfbericht Dauerlaufprüfung Anforderung erfüllt Klasse 2 View onlineDownload (pdf, 1.0 MB)
Prüfbericht Schallmessung 44 View onlineDownload (pdf, 1.1 MB)
Prüfbericht Luftdurchlässigkeit
Klasse 4
Klasse 8A
Klasse C2/B3
View onlineDownload (pdf, 1.4 MB)
Prüfbericht Schallmessung 42 (-3;-7) dB SSK 4 View onlineDownload (pdf, 311.7 KB)
Prüfbericht Wärmedurchgangskoeffizient Uf = 1,4 EnEV View onlineDownload (pdf, 324.2 KB)
Prüfbericht Luftdurchlässigkeit
Klasse 4
Klasse 9A
Klasse C5/B5
View onlineDownload (pdf, 547.8 KB)
Prüfbericht Windwiderstandsfähigkeit
400 Pa
600 Pa
Anforderungen erfüllt
Klasse 4
View onlineDownload (pdf, 1.1 MB)
Prüfbericht Schallmessung 38 dB SSK 3 View onlineDownload (pdf, 318.8 KB)
Prüfbericht Wärmedurchgangskoeffizient 1,3 View onlineDownload (pdf, 368.2 KB)
Prüfbericht Einbruchhemmung RC2 / RC2N View onlineDownload (pdf, 1.1 MB)
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Schüco Corona CT 70 Rondo

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Schüco Corona CT 70 Classic

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Schüco Corona CT 70 Programm

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Schüco EasyCare

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