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VELUX®

Window-dome for flat roofs

Flat roofs or extensions of houses in flat roofs, the concerns in the habitat remain the same: to benefit from the purest natural light, and to live well thanks to the comfort of the everyday life (neither too hot, nor too cold, nor too much of noise). The need existed, it remained to invent the solution. The VELUX flat roof dome window ideally combines zenith light and comfort under flat roofs.

Window-dome for flat roofs: roof

Steps

  1. Presentation of the window-cupola
  2. Installation of the window-cupola
  3. The advantages of the window-cupola

Presentation of the window-cupola

Corridor without a roof window

Corridor without a roof window

1. This corridor, although it is almost white in color, lacks clarity. This prompts to turn on the electric lighting to fix it. The type of habitat concerned (single-storey house) allows to envisage a zenith lighting by the installation of 3 windows-domes for flat roof which will transform the room giving it, by a natural illumination, a welcoming light.

The domed windows are designed for flat or low pitched roofs

The domed windows are designed for flat or low pitched roofs

2. Available in 6 sizes (60 x 60 cm, 60 x 90 cm, 80 x 80 cm, 90 x 90 cm, 100 x 100 cm, 120 x 120 cm), roof windows for flat roofs are suitable for roofing sealed flat or low slope from 0 to 15°. They are perfectly compatible with concrete roofs, steel tanks and wood. Nevertheless, for roofs with external insulation, it is necessary to raise the dome-window for a minimum water-resistance of 15 cm.

Corridor with roof windows

Corridor with roof windows

3. The same corridor as picture 1 is now lit by the installation of the 3 roof windows. The atmosphere has become bright and the clarity adds to the comfort of the whole. The corridor no longer forms a dark tunnel connecting illuminated rooms but integrates with the harmony of these pieces that it enlarges.

Composition of the window-cupola

Composition of the window-cupola

4. Neither window nor dome, the VELUX Flat Roof Dome Window combines a window for flat roofs (fixed or electric opening) with an acrylic protection that acts as a bulwark for the exterior elements.

Installation of the window-cupola

Centering the window frame

Centering the window frame

1. Highly insulating, the window for flat roofs is equipped with a laminated double glazing on a PVC frame extruded and lined with polystyrene. Inner laminated glazing, a real barrier in case of accidental shocks, concretely meets the security requirements. It starts but does not break (EN 12600 standard). In addition, it has 1200 Joules of outdoor maintenance protection.

Fixing the window assembly

Fixing the window assembly

2. Once the frame and window assembly is placed and centered above the roof tile on the surface of the roof, make its waterproof fastening by screwing 3 points on each side, the screws being provided with the window.

Fixing the dome

Fixing the dome

3. Install and fix the acrylic dome according to the installation instructions. The photo is made with the translucent model which shows the external lock, ensuring the tightness of the whole It also shows the rain control sensor that allows the window to close automatically from the beginning of the rain.

Fixing the acrylic protection on the outside on the PVC frame

Fixing the acrylic protection on the outside on the PVC frame

4. The acrylic protection acts as a bulwark for external elements. Translucent or opal, the latter is fixed here outside on the PVC frame. It ensures the evacuation of rainwater and makes it possible to respond to a real problem of roof terraces: significantly dampen the impact noise of the rain. With this solution, the sound level of the rain impact noise dropped to 46 dB * below the 50 dB wake-up threshold of a sleeping person. * NF EN ISO 140-18 standard

The advantages of the window-cupola

For the electric version: automatic ventilation programming

For the electric version: automatic ventilation programming

1. The fixed version is ideal for rooms that require just natural light and ventilation through other windows. In the electric version, the use of the io-homecontrol command is used to program the automatic ventilation. An integrated rain sensor nevertheless allows the window to close automatically as soon as the first rain drops.

The transparency of the glass allows a light transmission of 71%

The transparency of the glass allows a light transmission of 71%

2. The dome-window for flat roofs brings optimal natural lighting in the home and for a long time, because of the exceptional properties of transparency of the glass of the roof window: 71% of light transmission in transparent version. The acrylic protection is, it, made in a high quality material defying years and bad weather.

Modulation of light is possible thanks to an electric pleated blind

Modulation of light is possible thanks to an electric pleated blind

3. An electric pleated blind, optional on both versions, can complete the installation for more comfort and can modulate the light according to the desires of each.

Double glazing and polystyrene insulation ensure excellent insulation

Double glazing and polystyrene insulation ensure excellent insulation

4. A key priority for individuals, energy performance is ensured by polystyrene insulation in the frame of the roof window combined with its high performance double glazing. These two elements lead to an excellent thermal insulation solution of the whole (Uw = 1.4 W / m².K *). * Standard EN ISO 12567-2

Outside, the flat installation of the window-dome makes it invisible

Outside, the flat installation of the window-dome makes it invisible

5. The VELUX flat roof window has a particularly studied design. On the outside, the perfectly flat pose makes the solution invisible. Inside, the aesthetic has been cared for in every detail: impeccable interior finish whose sobriety allows harmony with any decoration, motor of the totally invisible electric version (concealed in the frame of the window).

(photos / visuals: © Velux, except special mention)

VELUX®

VELUX®
Specialist in the entry of light through the roof, the VELUX brand markets a wide variety of roof windows, solutions for flat roofs, natural light pipes and their equipment.

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