Janssens | Greenhouse Roof Vent Model:Royal Victorian Second ridge (roof peak) height:

Second ridge (roof peak) height: 12' 2"

Low threshold kit may be ordered for the sliding door opening

12'10" x 9'2"

Complete wall mounting kit included

Wall Height: 73"

Janssens | Greenhouse Roof Vent Model:Royal Victorian Second ridge (roof peak) height:The Janssens Greenhouse Roof Vent can be added to any Royal Victorian or Cathedral Greenhouse at the time of order. They come in black or green. Most Royal Victorian and Cathedral Greenhouse models already include at least one roof vent. You can add as many roof vents as you want to your greenhouse with the caveat that you cannot put the vents adjacent to each other so 'every other panel' would be the most you can add. Optional auto openers and fly