It’s a challenge to install a cupola on a flat roof due to the flashing problem. See how we did it.
What is the function of the Cupola?
This particular roof is a gambrel style roof. There are no vents to allow the hot air out that builds up during the days. The owners decided to install a Cupola over a 2 x 2 ft hole so the roof could vent easier.
Cupola for Aesthetic Reasons
The other reason for having a Cupola is so it adds a feature to the house.