Cupola Design and Installation: Common Mistakes and Miscalculations

Adding a cupola to your home, barn, office, garage or any other structure is a great way to add value and charm. There are many designs to choose from and the installation doesn’t take an expert in most cases. However, there are some things to be aware of.

Incorrect Roof Dimensions

One of the most common mistakes when designing or installing any type of cupola is incorrect measurement of the roof's dimensions. It is vital to take accurate and precise measurement to avoid modifying after installation.

Measurements that are off are likely to leave gaps which will then need to be sealed properly. Leaving roof gaps unsealed will create issues related to weather and insects; such as rotting and infestations. 

Incorrect Proportion

Another common error is to miscalculate the correct proportion your cupola should be, in contrast with the intended structure. There should be balance and alignment where the cupola sits in relation to the building it sits upon.

Choosing a cupola that is too small is fairly common. An easy way to think about it is that if the roof is 42 feet squared, the cupola should be 42 inches; a simple yet effective formula.

Placement of the cupola will also make a difference. One large cupola in the middle is usually sufficient.