When designing an attic, the architect responds to specific needs: creating a quiet bedroom, a well-lit workspace or a functional living area, often within clearly defined budgetary constraints. The VELUX range of roof windows offers solutions that can be precisely tailored to the project’s requirements, in terms of technical specifications, aesthetics and project costs.
Energy efficiency in loft design
In highly energy-efficient buildings, including passive houses and those with mechanical ventilation, technical performance is of key importance. The new GLL (wooden) and GLU (polyurethane) roof windows, featuring an 85 triple-glazed unit, achieve a Uw value of 0.9 W/m²K, exceeding the current requirements of the Technical Specifications (Uw = 1.1 W/m²K). These windows meet investors’ growing demands for energy efficiency and indoor comfort. This makes it possible to effectively reduce heat loss and improve thermal comfort in the loft.
Sound insulation in urban developments
In an urban environment, where noise is a significant design constraint, the acoustic performance of windows becomes particularly important. Windows with an 85 triple-glazed unit offer sound insulation of Rw 38–39 dB, effectively reducing the transmission of external noise. This solution is particularly important in locations with heavy traffic. The glazing unit’s design also reduces the sound of rainfall, improving the acoustic comfort of the interior. In practice, this enables the design of attics with large glazed areas, even in demanding acoustic conditions.
Automation and integration with smart home systems
Users’ growing demands for comfort are reflected in expectations for the integration of windows and doors with automation systems. VELUX electric and solar-powered windows, fitted with a triple-glazed unit featuring an anti-condensation coating, have a quiet and concealed motor and a rain sensor that automatically closes the sash at the first sign of rain. Control is possible via a wall-mounted keypad or through a smart home system, allowing the windows to be integrated into a wider building management system. An additional design advantage is that both electric and solar versions are available at the same price point.
Tilt-and-turn windows and a panoramic view
In projects where the relationship between the interior and its surroundings is key, GNL (wooden) and GNU (polyurethane) tilt-and-turn windows are used. The design allows the sash to be opened up to 45°, ensuring an unobstructed view and increasing the opening range of the loft space. The new generation of these models has been incorporated into the core range, allowing this solution to be used across a wider range of projects, not just in high-budget developments.
Overheating protection as part of the system
Designing a comfortable loft also requires consideration of sun protection. External thermal-insulating roller shutters limit the build-up of heat inside and can reduce the room temperature by up to 6°C*. This helps to minimise the risk of overheating and reduce the need for mechanical cooling.
These are complemented by internal blinds, which allow you to control the amount of light and the level of privacy. A systematic approach to the design of windows and sun protection allows for the creation of coherent solutions that meet both technical requirements and the quality of the living space.
Further information: www.velux.pl
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