The installation of the skylight begins with assembling the base made of zinc coated metal sheet - it needs to be firmly attached to the roof. Please note that the base is not a self-supporting element so it must not be overladen. In the case when the base seems too limp, it should be additionally supported linearly. When assembling the base, pay attention to its diagonals - if uneven, they will hinder the correct installation of the skylight.