VELUX GPL Conservation Top Hung White Painted Roof Window

The VELUX GPL Conservation Top Hung White Painted Roof Window is designed to preserve the authentic look of conservation and heritage buildings while delivering modern comfort, daylight, and ventilation. With its traditional black exterior profile and glazing bar, it blends seamlessly into historic rooflines without compromising on performance. Inside, the crisp white-painted finish brightens your living space, while the top-hung opening mechanism offers an unobstructed, panoramic view. This design also allows you to open the window fully outward, making it ideal for loft conversions or rooms where you want maximum headroom and fresh air.

Key Features

Perfect for conservation areas, featuring a black exterior and glazing bar to maintain traditional architectural character. Top-hung opening provides a wide, unobstructed view and allows you to step closer to the window. Flexible ventilation options, including an integrated ventilation flap for fresh air even when the window is closed. Easy cleaning thanks to a 180° rotating sash for safe access to the outer pane from inside your home. White-painted interior finish brightens any room with a modern, clean aesthetic. Simple blind installation with pre-fitted brackets for click-in VELUX blinds. Compatible with roof pitches between 15° and 55°, and up to 75° with special springs.

Technical Performance

Thermal transmittance (U-value): 1.3 W/(m²K) Light transmittance: 0.68 Total solar energy transmittance: 0.46 Sound insulation: 35(-1;-3) Air permeability: Class 4 External fire performance (British): AC External fire performance (European): NPD Impact resistance: Class 3 Reaction to fire: C-s1,d2 Resistance to wind load: C3 Water tightness: E900

Frequently Asked Questions

What makes the GPL Conservation model different from the standard version?

The Conservation model includes a black exterior profile and glazing bar, making it visually suitable for heritage and conservation area requirements.

Is the top-hung design suitable for loft spaces?

Yes. The outward-opening mechanism is ideal for lofts, providing maximum headroom, excellent ventilation, and wide views.

Can I clean the external glass from inside?

Yes. Even though it is a top-hung window, the sash rotates 180° to allow safe cleaning from within the room.

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