Construction

Cupola installation tips

  1. If you are planning for cupola for existing building, make sure that building structure is strong enough to hold the weight of cupola. If it is for new construction, then use extra trusses or rafters to mount the cupola.
  2. Determine the roof pitch before you start installing the cupola. Roof pitch is the measurement of roof steepness. It is the measure the amount of rise your roof has compared to the horizontal measurement of the roof.
  3. If you have planned cupola for ventilation, then keep in mind the roof leakage. To prevent any leakage in cupola, you should cut the hold 6” smaller than the size of cupola.

How to measure roof pitch :

measuring roof pitch for cupola

measuring roof pitch for cupola

Pitch measures the rise your roof has as compared to the length. In the abpve figure, it is shown that for every 12 inches of length, how much your roof will rise? It is 7 inches. So, this roof has a 7 inch picth or slope. 

 

roof

The pitch or slope can also be calculated by measuring the angle between the horizontal and the roof. The angle in the above picture is 30 degree. So, the slope/pitch is 7/12 roof pitch. This roof pitch value is derived from the table given below:

 1/12  4 degrees
 2/12  9 degrees
 3/12  14 degrees
 4/12  18 degrees
 5/12  22 degrees
 6/12  26 degrees
 7/12  30 degrees
 8/12  33 degrees
 9/12  36 degrees
 10/12  39 degrees
 11/12  42 degrees
 12/12  45 degrees

Cupola

Cupola accessories

Cupola proportions

Right size cupola

Types of cupola

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