Roof window: what you need to know

Roof window: what you need to know


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One of the key points to consider if you want to arrange your attic is the brightness. You therefore need to install a roof window, or even several depending on the space you have. Opening system and choice of glazing are all criteria to take into consideration when choosing, both for your comfort and to bring an aesthetic touch to your living space under the roofs.

What type of opening to choose?

You have the choice between the tilting roof window and the rotating opening window. Opening by tilting or by projection allows the roof window to be fully opened from bottom to top. It is ideal in an office or a playroom because it offers an extremely clear view to the outside. The rotational opening roof window pivots entirely on its axis, which greatly facilitates cleaning of the exterior glazed surface. With projection or rotation, these roof windows require a roof slope of at least 15%. If access to the window is difficult, it is better to opt for a motorized roof window with electric opening with rotation.

Glazing of a roof window

In addition to the brightness, it is of course necessary to ensure the thermal and acoustic insulation of a room. Glazing for a roof window must therefore be able to provide absolute comfort to rooms installed under the eaves. It must withstand the weather, an oblique roof window being particularly exposed. It must also insulate the room against the cold in winter and against hot weather in summer. Glazing for roof windows is available in several categories: standard for double thermal glazing, comfort for greater thermal insulation and resistant laminated glass for safety. The high-end glazing is generally treated so that the sound of rain is not perceived from the inside. It also provides maximum thermal and sound insulation.

Other types of roof windows

The skylight is a window to the roof that brings style to the home. It opens exactly like a standard window, from left to right or vice versa. It is placed vertically on a roof slope which must be at least 30%. Depending on its height, the skylight allows access to a roof terrace. However, it provides less light than an oblique roof window. As for the skylight which is a variation of the roof window, it brings a lot of light to the attic converted into a bedroom, bathroom, playroom or office for example. It is the ideal solution when it is not possible to have a skylight or oblique roof window. Very easy to install, it plays the card of discretion because it is not very visible outside the house. Whichever model of roof window you choose, do not hesitate to be assisted by a professional. He will advise you on the precautions to be taken at the time of installation to ensure that a perfect seal is maintained. Installing a window seal Our practical DIY videos