December 21, 2025
Velux GGL CK04 2570H Conservation Roof Window 55 x 98 cm Black Heritage Skylight
The VELUX GGL CK04 2570H Conservation White Painted Centre Pivot Window is a premium quality roof window made specifically for traditional, classic, conservation, heritage and period properties. Designed for roof pitches between 15° – 90° degrees, this VELUX roof window features discreet and stylish black external profiles and is fitted using a recessed installation, allowing the window to sit lower in the roof structure than standard installs for a sleek, unobtrusive and streamlined look that’s in keeping with the aesthetic of a listed building or conservation area. All VELUX conservation roof windows have the same technical features of a VELUX roof window, but in a traditional black conservation style. Among this window’s many features is toughened outer glass that makes your glazing more resistant to hail, heavy wind and snow loads, an inner laminated glass pane that protects materials behind the glass against UV radiation and fading while the VELUX ThermoTechnology insulation keeps your home comfortable, warm and energy efficient. Suitable for use with 15° up to 90° roof pitches. U-value: 1.3 W/m²K. Size: Width 55 x Height 98cm. Laminated inner pane for safety and toughened outer pane. Black external profiles and glazing bar (RAL colour 9005). Recessed installation for tiled roofs. Safety glass prevents falling glass if broken. Protects materials behind glass against UV radiation. Delayed fading of materials behind the glass. Significant audible reduction of rainfall sounds. Innovative pivot hinges ensure stability. ThermoTechnology provides better energy efficiency. Barrel bolt locks window at 180° for easy cleaning. Brushed aluminium ventilation bar allows fresh air in even when the window is closed. Minimum 20° roof pitch. Requires flashing ending in code’0500. Bright white finish with discreet wood grain. Painted before assembly for flawless finish. Lower maintenance than pine finish windows.