- Rugged Beehive Drainage Profile: Features an arched beehive geometry with a 9 ¼-inch outside diameter and 5 ½-inch height, providing an optimized surface area that ensures uninterrupted water flow in compact roof layouts.
- High-Capacity 37.6 Sq. In. Free Area: Engineered with a generous 37.6 square inches of open drainage space, maximizing water intake efficiency while effectively screening out harmful jobsite debris.
- Heavy-Duty Coated Cast Iron: Cast from commercial-grade iron with a protective rust-inhibiting finish, delivering exceptional impact resistance against tools, foot traffic, and harsh outdoor exposure.
- Exact Josam 22080-Series Fitment: Designed precisely as a direct-fit replacement component engineered to seat flush and center seamlessly onto Josam 22080-series small-sump commercial roof drains.
Price: $95.95
Item #316-030697T
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Description
The Josam 22080 Cast Iron Dome is made from coated cast iron in a beehive shape and pairs with the Josam 22080 series small-sump roof drains. It features an approximate outside diameter of 9 ¼ inches and a height of 5 ½ inches. The dome offers a free drainage area of about 37.6 square inches and is designed to intercept debris while maintaining effective water flow.
Key Features
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Material: cast iron
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Outside diameter: approx. 9 ¼ inches
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Height: approx. 5 ½ inches
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Free drainage area: approx. 37.6 square inches
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Beehive style dome designed for Josam 22080 series small-sump roof drains
Specifications
Manufacturer: Josam Company
Model/SKU: 22080
Material: Cast Iron (coated)
Outside diameter: approx. 9 ¼ inches
Height: approx. 5 ½ inches
Dome free area: approx. 37.6 square inches
Quantity: Kits sold individually
Gate: Not included (sold separately)
How To
- Remove any existing dome or grate from the Josam 22080 series roof drain body.
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Verify that the drain flange and deck area are clean, level, and ready for dome installation.
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Place the 22080 Cast Iron Dome over the drain opening so it sits flush and secure on the dome lip.
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Follow the drain body manufacturer’s instructions to anchor or clamp the dome appropriately.
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Run water into the drain to confirm unobstructed flow and verify the dome is properly seated and aligned.
FAQs
Q: Is the 22080 Cast Iron Dome compatible with large-sump roof drains?
A: The 22080 dome is intended specifically for the Josam 22080 series small-sump roof drains; for larger sump drains a different dome model may be required.
Q: What is the significance of the 37.6 square-inch dome free area?
A: The 37.6 square-inch free area measurement ensures the dome offers sufficient drainage capacity while still intercepting debris in compact roof installations.
Q: Does the 22080 dome include the clamp ring or drain body?
A: The dome is supplied as the cover component only; any clamp ring, drain body, or mounting hardware must be sourced separately.
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