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Choosing the Right Size Cupola

 

How to choose the right size cupola

 Cupola "size" refers to the measurement across the bottom of the cupola's roof.

 A good rule of thumb for selecting the right size cupola is to multiply 1.25 times every foot of unbroken roofline -- the key is the unbroken roofline measurement.   When we say "unbroken roof line" what we mean is that there are no major objects (like a chimney) or hips or dips in the ridge line of the roof.

Our experience tells us this formula provides a balance between the cupola and the roof line of the structure.  If the cupola is too small it will look like a birdhouse.  In fact, we recommend going one size larger if there is significant height to the structure, or adjoining building.

For example:  Let's say you have 24 feet of unbroken roof line. Just multiply 1.25 times 24 to give you the minimum cupola size that will look good on your roof.  In this example it would mean you need a 30" square cupola  (1.25 X 24 = 30).

 cupola building


Another example:  Let's say you have 36 feet of unbroken roof line. Just multiply 1.25 times 36 to give you the minimum cupola size that will look good on your roof.  In this example it would mean you need a 45" square cupola  (1.25 X 36 = 45).  We don't have a 45" cupola size, so you would want to go up to the closest size which is 48".

cupolas on building


Sometimes it might be better to use two or three cupolas on very long buildings

cupolas on building 60' long


All cupolas are built to fit up to a normal 10/12 "pitched" roof (pitch is a term for the steepness of the roof).  If you have a steeper roof than 10/12", an extended base can be added to your order on this page. To find out what the pitch of your roof is, see below.

Determining the pitch of your roof:

Determine roof pitch
 

If you have any questions about figuring out what size cupola you need for your project, please Contact us.

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