what size should a cupola be
This diagram is to help you determine the proper size cupola for your building. A general. rule of thumb is a minimum of 1.25 of cupola for every foot of unbroken roof ridge line. In this case of a 24' long building the recommended size of cupola would be 30 or greater. A 30 cupola is properly sized but a 36 model looks very good too. One diagram shows a. 24 cupola which appears too small.