Skylights and solar tubes are both great ways to bring natural light into a room or dark hallway. They can also be useful in venting a home. A well designed and installed roof will often times out last the components installed with it. Skylights are no exception. Skylights often only hold a 5-10 year warranty. It is relatively easy and inexpensive to replace old curb mounted plastic bubble skylights with energy efficient impact resistant glass skylights.