Aluminium slimline renovation window.
The GT70 Slimline Renovation Window is an elegant aluminium fenestration solution, designed specifically to replicate the appearance of steel windows. Suitable for installation in new build or refurbishment projects, the GT70 window combines the optimum technical performance expected of today’s aluminium windows with the fine sightlines characteristic of original steel windows. These slender sightlines are enhanced further by optional bevelled designed feature caps, adding a unique sculptured effect to the external surface of the building.
L10/25 Aluminium windows
L10/330 Aluminium windows
GT70 Slimline Renovation Window
Tilt/ turn (bottom-hung only)
Tilt/ turn (side-hung only)
54 mm maximum infill.
Secured by Design accreditation
Permacover polyester powder coated
Standard product features
Framing construction incorporates fill and debridge thermal break with resin. All frames have mechanically jointed and adhesive bonded corners. Installation can be by the direct fix method or by twist in fixing lugs.
Inward-opening windows are internally glazed and outward-opening windows are externally glazed, with a maximum glass thickness of 54 mm for inside-glazed and 33 mm for outside-glazed.