A component in a roof drainage system, used to protect the roof against damage resulting from the water load imposed by blocked or partially-blocked roof drains.
| Architecture: overflow drain |
A component in a roof drainage system, used to protect the roof against damage resulting from the water load imposed by blocked or partially-blocked roof drains.
| 5min Related Video: overflow drain |
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| Sewage | |
| San Joaquin River |
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