LORO-X Main-Emergency-Combi is the keyword for the innovative pipe-in-pipe solution for which LORO has filed a patent application for main drainage and emergency drainage in one system.

Through the patented pipe-in-pipe principle by LORO, it is possible to accommodate an independent second drainage system within just a single visible downpipe.

Parapet drainage with emergency overflow

The LORO-X Main-Emergency-Combi Pipe-in-Pipe model combines a silent gravity main drainage system (4.5 l/s at 35 mm water level) with an additional silent power emergency drainage system (8.2 l/s at 75 mm water level) in a single system.

Details on the function of the siphonic flow spout for emergency drainage can be found in the LORO ABC.

Advantages of the Main-Emergency-Combi parapet drainage

• 2 in 1: Integrated emergency drainage system
• Only 1 penetration through the parapet for main and emergency drainage.
• Only 1 visible downpipe on the facade.
• Only 1 drain with only 1 waterproofing level.
• Silent gravity flow during normal rain (main drainage DN 100)
• Power siphonic flow during heavy rain (emergency drainage DN 50)
• System performance and roof drainage standard-compliant capacity certified by the independent testing institute LGA