The use of natural light is a key point in the bio, because it can optimize energy savings, in addition to the many benefits of sunlight to our health and mood. It is therefore very important that all the rooms and hallways of homes having natural lighting. There are many solutions that can be used for this: windows, glass block , skylights, glass doors , etc. One of the most effective and original are the skylights, they give a pleasant indirect light that can illuminate rooms where windows is not possible to either having no walls in contact with the outside or to prevent the installation of windows the north face. This was the case bath upstairs, where we have installed a skylight. 
interesting are commercially available solar systems tubes that let you install skylights even where the beam is not straight. However, we have opted for a simpler and more economical. First we open a hole in the slab, using the space between two joists. Subsequently it has been a structure built with bricks to raise the skylight above the green roof where a skylight has been installed twice. This consists of two elements, one smaller than an upper larger, leaving a camera fit air between them, which improves the isolation from the skylights simple. Finally, inside the skylight will be plastered with plaster and painted white. 
