GGLS 3in1 Centre-Pivot Timber Roof Window.

Features and benefits:

• Three roof windows sashes in a single frame.
• Increased daylight due to extra slim profiles.
• Can be installed as easily as one standard roof window.
• Centre sash is fixed while both outer sashes are centre pivoted, operated with a full width control bar.
• One pull of top control bar allows background ventilation whilst the window remains securely closed. One further pull opens the window.
• Rotates 180° and locks in place for ease of cleaning of the outer pane.

Glazing:

- Code 66:

• Thermal performance (U-value): 1.0 W/m²K.
• Sound insulation (Rw): 37 dB.
• Light transmittance (Tv): 0.71.
• Total solar energy transmittance (g): 0.52.

- Code 70:

• Thermal performance (U-value):1.3-1.4 W/m²K.
• Sound insulation (Rw): 35 dB.
• Light transmittance (Tv): 0.68.
• Total solar energy transmittance (g): 0.46.

Energy efficiency installation collars:

• Insulation collar – Code BDX: Optimizes the insulation around the roof window frame by reducing heat loss and eliminating cold bridges. BDX 2000 variant Includes underfelt collar BFX.
• Underfelt collar – Code BFX: Ensures a weathertight seal between the roof window and the roof.
• Vapour barrier collar – Code BBX: Provides vapour control and air permeability seal.

Flashing:

• Flashings are available in materials and finishes to match roof window cladding.
• Code EDLS: For standard installation into slate and flat roofing materials up to 8 mm thick. Not suitable for interlocking slate. Supplied with BDX Insulation collar and underfelt collar.
• Code EDWS: For standard installation into flat and profiled roofing materials up to 120 mm thick, including profiled sheeting and interlocking slates. Supplied with BDX Insulation collar and underfelt collar.