Extension Bases, Primer, and Screening |
Extension Bases Our Vinyl and Wood Cupolas are designed for a roof pitch up to 10" rise per foot ("10/12 pitch"). Most roofs are not steeper than this. If, however, your roof is steper than 10/12 pitch, you'll need to use an Extension Base with your Cupola. If needed, it is important that you order your Extension Base at the same time you order your Cupola.
Castle Cupolas: Designed for a roof pitch up to 12" rise per foot ("12/12 pitch"). But if the roof is steeper than 12/12 pitch, you will need an Extension Base for your Cupola.
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All Cupolas Except Castle
| Roof Pitch |
Extension Base Required |
Up to and including
10/12 Pitch |
None |
| 12/12 Pitch |
1 Extension Base |
| 14/12 Pitch |
2 Extension Bases |
All Cupolas except Castle Cupolas come standard to fit roof pitches up to and including 10/12. One extension base is required to fit your Cupola to a roof greater than 10/12 Pitch. For a 12/12 Pitch roof, 1 Extension Base is required. For a 14/12 Pitch roof, 2 Extension Bases are required.
Castle Cupolas only
| Roof Pitch |
Extension Base Required |
Up to and including
12/12 Pitch |
None |
| 14/12 Pitch |
1 Extension Base |
| 16/12 Pitch |
2 Extension Bases |
Castle Cupolas come standard to fit roof pitches up to and including 12/12. One extension base is required to fit your Castle Cupola to a 14/12 Pitch roof. For a 16/12 Pitch roof, 2 Extension Bases are required for your Castle Cupola. |
Brass Extension Rods 
When installing a Weathervane into a Cupola 30" high or higher, an 11" Brass Extension Rod is required.
$18.99
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