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Selecting The Right Size Cupola

cupola sizes chart

Cupolas are a great way to add décor to your home, garage, or just about any building and make the cupola the focal point of the structure. It also adds some curb appeal and makes your home stand out from the others in your neighborhood. Originally, cupolas were built to provide ventilation to buildings, and they still do, by allowing moist air from your house a place to escape.

So adding a cupola to your roof can help to prevent issues like rotting wood, mold, mildew, or paint that peels from too much moisture. For homes in humid areas, this can be more of an issue, which is why adding a cupola is recommended for those.

To ensure that your new cupola looks attractive and fits properly atop your shed, horse barn, garage, gazebo or home, follow these guidelines:

Measure your roof's unbroken ridgeline all the way across. Unbroken ridgeline refers to a roofline that has nothing in the way, like chimneys or weathervanes. This assures that you have an even balance of distance between the ridgeline and cupola.


Calculating Your Cupola Size

To calculate the size of your cupola follow the general rule of thumb of multiplying by 1.25:

Ridge Line Length (in feet) x 1.25" = Minimum Cupola Size


smaller cupola sizes      medium sized cupolas      larger cupola sizes

For roof lengths of 48' or longer, you might want to consider adding 2 or 3 cupolas to balance the space for the best look. Keep in mind that there should not be any other obstacles in its way when measuring for a roof of this size.

A roof of 60 feet or more could support two smaller cupolas on the sides along that are of equal size with a larger cupola in the center. Remember that they should be evenly distributed on the rooftop.

If you are unsure of what size cupola to get or want to see how it would look on your rooftop then some try this out. Take a cardboard box the size of the cupola they want, measure the roof pitch and cut that out of the box, and put it on your roof to get a good idea of how it would look.

For more information on cupola sizing and finding the best cupola for your home, garage or building, feel free to call 1-610-582-3375 for answers to all of your questions about cupolas.

Our vinyl cupolas, barn cupolas, roof cupolas and copper cupolas are solidly constructed out of the finest vinyl, wood, and copper materials. Cupolas are a great way to accent your barn, gazebo, or the roof of your house.
Phone: 1-610-582-3375 or Email: craig@cupolasnmore.com