When installing an attic window, the level of lightness of the attic (the proportion of the ratio of glazing and floor 1:10) and the viewing sector from an open window with a seated person (at least 15%) is calculated.
When installing an attic window, the level of lightness of the attic (the proportion of the ratio of glazing and floor 1:10) and the viewing sector from an open window with a seated person (at least 15%) is calculated.
