To better determine when to use a curb-mounted skylight, you may consider learning more about the benefits. A key difference between this type of skylight and others relates to the frame or curb that is installed into the roof. The main benefit of of a curb-mounted skylight is that it can be installed into an existing roof with minimal time and effort required. Other types of skylights may be installed into an existing roof as well, but there may be more installation work required to do so. If you are looking for a skylight for a new construction home, there are other suitable options that may be considered as well that may lie flush with the roof.