Stormwater Drainage

Roof DrainsCast Iron

Complete roof drainage solutions for commercial buildings with non-puncturing clamp rings, various dome options, and Pre-Fab Base availability for faster installation.

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Technical Details

Product Specifications

Material
Coated Cast Iron
Clamp Ring
Non-puncturing
Gravel Stop
Integral
Dome Options
Multiple styles
Pre-Fab Base
Available
Series
21500, 22010, etc.

Key Features

Non-puncturing clamp ring with integral gravel stop
Various dome options (beehive, flat, etc.)
Multiple outlet configurations
Coated cast iron construction
Pre-Fab Base option available
Various flange sizes
Underdeck clamps available
Large sump (21500 series) options
Medium sump (22010 series) options
Compatible with various roofing systems

Common Applications

Commercial flat roofs
Industrial buildings
Office buildings
Shopping centers
Hospitals
Schools
Hotels
Parking structures
Warehouses
Manufacturing facilities
Convention centers
Sports arenas
Questions & Answers

Roof Drain FAQs

Common questions about Josam Roof Drains

Josam roof drains offer various dome options including beehive domes, flat domes, and other configurations to match project requirements and aesthetic preferences.

Yes, Josam roof drains are available with the Pre-Fab Base option for quick and secure installation, saving time and labor costs.

Josam roof drains feature a non-puncturing clamp ring with integral gravel stop, providing secure membrane clamping without damaging roofing materials.

Popular series include the 21500 (Large Sump) and 22010 (Medium Sump), with various outlet configurations and flange sizes available.

Need Commercial Roof Drainage?

Josam roof drains provide reliable drainage for commercial and industrial roofing systems.

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