GGL Centre-Pivot Roof Window

Features and benefits:

• Convenient operation – even with furniture placed beneath the window.
• Easy to open and quick to close with the top control bar.
• Low installation allows for more flexibility and better views.
• 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 68:

• Thermal performance (U-value): 1.1 W/m²K.
• Sound insulation (Rw): 35 dB.
• Light Transmittance (Tv): 0.71.
• Total solar energy transmittance (g): 0.52.

- Code 62:

• Thermal performance (U-value): 0.92 W/m²K.
• Sound insulation (Rw): 42 dB.
• Light Transmittance (Tv): 0.73.
• Total solar energy transmittance (g): 0.52.

- 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 W/m²K.
• Sound insulation (Rw): 35 dB.
• Light Transmittance (Tv): 0.68.
• Total solar energy transmittance (g): 0.46.

- Code 70Q:

• Thermal performance (U-value): 1.4 W/m²K.
• Sound insulation (Rw): 35 dB.
• Light Transmittance (Tv): 0.81.
• Total solar energy transmittance (g): 0.63.

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 EDL: For standard installation into slate and flat roofing materials up to 8 mm thick. Not suitable for interlocking slate.
• Code EDN: For recessed installation into slate and flat roofing materials up to 8 mm thick. Not suitable for interlocking slate.
• Code EDW: For standard installation into flat and profiled roofing materials up to 120 mm thick, including profiled sheeting and interlocking slates.
• Code EDJ: For recessed installation into flat and profiled roofing materials up to 90 mm thick, including profiled sheeting and interlocking slates.
• Code EDP: For standard installation into plain tiles up to 14 mm thick.
• Code ZWC: Window profile set to be used in conjunction with on-site weathering for non-standard roofing materials. For further details please contact VELUX.