12/12 pitch Cupola

 
16" x 16" Cupola Roof Vent 12/12 pitch 24" x 24" Cupola Roof Vent 12/12 pitch
16" x 16" Cupola Roof Vent 12/12 pitch24" x 24" Cupola Roof Vent 12/12 pitch
16" x 16" Roof Vent 12/12 pitch face width: 16" plus roof face height: 16" plus roof louver face: 1" louver spacing: 1" louver depth: 1" flashing: 4" solid with water stop screen: wire (squirrel resistant) roof pitch: 12/12 net free: 196 square...24" x 24" Roof Vent 12/12 pitch face width: 24" plus roof face height: 24" plus roof louver face: 1" louver spacing: 1" louver depth: 1" flashing: 4" solid with water stop screen: wire (squirrel resistant) roof pitch: 12/12 net free: 484 square...
36" x 36" Cupola Roof Vent 12/12 pitch 48" x 48" Cupola Roof Vent 12/12 pitch
36" x 36" Cupola Roof Vent 12/12 pitch48" x 48" Cupola Roof Vent 12/12 pitch
36" x 36" Roof Vent 12/12 pitch face width: 36" plus roof face height: 36" plus roof louver face: 1" louver spacing: 1" louver depth: 1" flashing: 4" solid with water stop screen: wire (squirrel resistant) roof pitch: 12/12 net free: 1156 square...48" x 48" Roof Vent 12/12 pitch face width: 48" plus roof face height: 48" plus roof louver face: 1" louver spacing: 1.5" louver depth: 3.5" flashing: 4" solid with water stop screen: wire (squirrel resistant) roof pitch: 12/12 net free: 2116...
60" x 60" Cupola Roof Vent 12/12 pitch
60" x 60" Cupola Roof Vent 12/12 pitch
60" x 60" Roof Vent 12/12 pitch face width: 60" plus roof face height: 60" plus roof louver face: 1" louver spacing: 1.5" louver depth: 3.5" flashing: 4" solid with water stop screen: wire (squirrel resistant) roof pitch: 12/12 net free: 3364...

12/12 pitch Cupola:  How much can a cupola vent?  The base size of your cupola is the determining factor.  But cupolas push and pull air freely so more free airflow is accomplished.  If your vent hole is 24 x 24, you have 576 square inches of unblocked net free air flow.  Cupolas are truly the best venting vents available.