NBS Source
GT70 Slimline Renovation Window

Application

Suitable for installation in new build or refurbishment projects.

Description

An aluminium fenestration solution designed to replicate the appearance of steel windows, 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.


Features and benefits:

  • Fine sightline characteristics of steel windows, providing a suitable replication for steel windows with additional benefits associated with aluminium, such as the high strength to weight ratio.
  • Suitable for composite and ribbon windows.
  • Option for open-out or open-in to meet project design requirements and user flexibility.
  • A range of structural and coupling mullions available.
  • Special bevelled beads, or feature caps, add a unique sculptured appearance to the building.
  • Concealed drainage system to enhance the building’s aesthetics.
  • Accommodates glazing of up to 54 mm for inside glazed or 33 mm for outside glazed.

General information

Color

Insert requirements.

-

Finish

Powder-coated

Anodized

Material

Aluminium

Size

Insert requirements.

-

Uniclass

Pr_30_59_98_02 Aluminium window unitsPrimary

CAWS

L10/25 Aluminium windows

L10/330 Aluminium windows

Specification data - Aluminium window units Enhanced data

Dimensions and configurations

Side-hung.

Outward-opening.

Tilt/ turn.

Inward-opening.

Tilt/ turn (bottom-hung only).

Inward-opening.

Tilt/ turn (side-hung only).

Inward-opening.

Top-hung.

Outward-opening.

Product performance

-

Weather performance

-

Air permeability

Class 6A.

Watertightness

Class 6A.

Resistance to wind load

1200 Pa; 1750 Pa.

Windload; Safety.

Safety

-

Security level

Not required.

To Secured by Design standard.

Standard security.

Frame

-

Profile

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.

Finish as delivered

-

Coating

Permacover polyester powder coated.

Permanodic anodized.

Colour

Insert requirements.

Film thickness (minimum)

40 micrometres.

60 micrometres.

80 micrometres.

Glazing or infill

-

Requirements

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.

Execution

Fixing of aluminium frames.

Thickness

54 mm maximum infill.

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