Roof Drain Domes

The Josam 21504 Poly Dome is manufactured from durable black polypropylene and fits the Josam 21500-series roof drains. It features a 13-inch outside diameter and a height of 4½ inches. This component helps prevent debris entry while maintaining full drainage capacity. Key Features Material: polypropylene Outside diameter: 13 inches Height: 4½ inches Color: black Designed to fit Josam 21500-series large sump roof drains ...

The Josam 21504-22 Cast Iron Dome is constructed from cast iron in a green finish and is designed for use with the Josam 21500-series large sump roof drains. It has an outside diameter of 13 inches and a height of 4½ inches. The design covers the drain opening and allows water to flow while helping to prevent large debris from entering. Key Features Material: cast iron Outside diameter: 13 inches Height: 4½ inches Color: green Designed to fit Josam 21500-series large sump roof drains ...

The Josam 414 High Hat Cast Iron Dome is constructed from cast iron with a green finish and is designed for compatibility with specific Josam roof drain bodies. It features an approximate outside diameter of 8-¼ inches and an approximate height of 11-½ inches. The dome design helps screen debris while maintaining drainage capacity in compatible roofing systems. Key Features Material: cast iron Outside diameter: approximately 8-¼ inches Height: approximately 11-½ inches Color: green High-hat...

The Josam 22010 Cast Iron Dome is built from green-coated cast iron in a beehive style and pairs with the Josam 22010 series medium sump roof drains. It has an outside diameter of 10½ inches and a height of 5¼ inches. The dome is designed to cover the drain opening while allowing water to flow through and intercept debris. Key Features Material: cast iron Outside diameter: 10½ inches Height: 5¼ inches Color: green Beehive style dome for medium sump roof drains ...

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 Material: cast iron Outside diameter: approx. 9 ¼ inches Height: approx. 5 ½ inches Free drainage area: approx. 37.6...

The Josam 4116 Old Style Cast Iron Dome is a cast iron, green-coated replacement dome for compatible Josam roof drains. The design provides a large free area to maintain flow while screening debris. Dimensions and performance values are taken directly from Josam’s official submittal for part 029350. Key Features Cast iron construction with green coating Old style dome design with 32 ribs and 32 slots Large free area rated at approximately 116 square inches Outside diameter approximately...