In the past, ridge skylights were constructed from reinforced glass and steel. Nowadays, the materials used for ridge skylight installation are much lighter and durable PC sheets and aluminium profiles. Ridge skylights are usually chosen as a new roofing solution in order to fit in the surroundings or in order to take advantage of the existing ridge frame. However, the difficulty in cladding the old frame and new polycarbonate sheets may turn out to be less efficient than the installation of a new barrel vault skylight in place of the old ridge skylight.
When compared to flat and barrel vault skylights, ridge skylights are more expensive due to larger size of the PC sheets and aluminum profiles needed for their construction. Their illuminative properties, however, are quite good and the ridge shape fosters low water and snow retention.
See: comparison of the skylight shapes