Sizing Roof Cupolas

For a 20 wide x 20 long garage with no roof overhangs 8 side walls and a 6 12 roof pitch.

Sizing roof cupolas.

How to size a cupola when sizing a cupola you must consider pitch width and height. Cupolas are usually sold in sizes with 2 4 or 6 increments. Cupola for a 24ft garage fora 24 long building the recommended size of cupola would be 36 or greater. Weathervanes finials can be used to complete any roof cupola.

Cupola sizing our cupolas sizes are determined by base width. When you have a cupola over 42 at the base you should be sure to choose a large enough weathervane or finial to not get lost in the size of the cupola. For 2 or 3 cupolas use 1 5 and for 4 or more cupolas use 1 75. You ll notice that all cupola sizes are rounded up to the next size.

13 ridge height 20 ridge length x 7 23 1 use a cupola with a 24 or larger base. A 30 cupola is properly sized but a 36 model looks very good too. A general sizing suggestion 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.

The length or width of the weathervane should not exceed the widest part of the cupola. Home page cupolas seafaring weathervanes special interest weathervanes americana weathervanes barnyard weathervanes wildlife weathervanes cottage size weathervanes arrows banners roof caps and finials installation instructions mounts stands our customers cupola photos outdoor accents annapolis weathervanes and its owners are not responsible for any damage. Most full size weathervanes are compatible with all full size cupolas. If you are considering 2 cupolas a good rule of thumb is to use 1 of cupola for every foot of unbroken roofline measurement.

Size of our cupolas refers to the measurement across the bottom of the cupola s roof. Our louvered cupolas provide ventilation when needed. Our cupolas are manufactured in 2 3 sections for ease of handling and installation. A good rule of thumb for selecting the right size cupola is to use 1 0 1 25 of cupola for every foot of unbroken roofline the key is the unbroken roofline measurement.

Extended cupola bases can be added for steeper pitch roofs. In other words from the peak of your roof measure 12 inches out then measure down until you meet the slope of your roof. Please see the examples below. Pitch is determined by the number of inches your roof rises vertically for every 12 inches it extends horizontally.

A minimum of 1 25 of cupola for every foot of unbroken roof ridge line. One diagram shows a 24 cupola which appears too small.