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Mansard windows are installed on the surface of the roof. In the building materials market, they are represented in a variety of formats and sizes that are optimally suitable for installation on the roof of the house. For their installation, you do not have to build special designs. In turn, this leads to the obvious savings of your forces, time and means for the additional installation of roofing and thermal insulation materials. Also, a clear advantage is that it passes 30-50% more than daylight than a standard vertical window. This effect is achieved due to the fact that it is built into the roof, and the sun’s rays shine directly into it. The attic windows will not interfere with your design ideas for placing furniture. Imagine you put a sofa directly opposite the standard vertical window. Each time to open it, you will have to climb over a sofa standing close to it, which causes obvious inconvenience. The attic windows are spared this minus, as they open by the upper handle.