Series 93 LORO-X ATTIKASTAR high performance

LORO-X ATTIKASTAR® parapet drainage systems with a large hood circumference and siphonic flow for strong discharge capacity with optimum smooth running, using the double-pipe principle patented by LORO, achieve up to 32 l/s through Silent-Power siphonic flow at a water height of only 55 mm.

Low intrusion depth

The intrusion into the thermal insulation of the roof is minimized by the LORO-X double-pipe principle. By merging the two DN 70 pipelines into one DN 100 downpipe in the Y-piece located behind the parapet, the suction effect starts reliably and even with a small amount of water.

Power hood

Thanks to the large Power hood of the ATTIKASTAR, noise and vibrations are minimized by design, so that the ATTIKASTAR, as an insatiable water swallower, can also be used in applications with special sound insulation requirements.

The ATTIKASTAR high-performance spout for emergency drainage (LX760) without downpipe offers, thanks to its large circumference, a discharge capacity of up to 7 l/s at only 15 mm water height above the weir (with a 60 mm weir, this corresponds to 75 mm absolute water height).

Advantages of Series 93

• Power siphonic flow with up to 32 l/s at 55 mm/75 mm
• Particularly smooth running thanks to the large hood
• Low intrusion into the thermal insulation thanks to the patented double pipe
• Fast start of siphonic flow thanks to the Y-piece
• Secure sealing with round LORO-X connection pipes

FLAT ROOF >> The use of parapet drainage systems with suction performance across the parapet is new. Pressure-resistant and backflow-proof drainage pipes are located in front of the façade; we describe the advantages.

Just as with internal siphonic drainage, reliable proof of performance is of great importance here as well. Planners and installers must be able to rely on complete system solutions with system design and performance guaranteed by the manufacturer.

It is therefore obvious that the entire system, from the drain via the fittings and pipes to the outlet, should come from a single source.

Advantages of parapet drainage

• No penetrations into the building and therefore no fire protection problems
• Free use of the interior, as there are no pipelines in the building
• No noise problems in the building
• Fewer downpipes and drains thanks to powerful siphonic flow
• Low installation costs thanks to fast installation with push-fit sockets
• Planning certainty thanks to data sheets with measured discharge curve and CAD drawings

External drainage for flat roofs

A parapet is a roof edge upstand, a wall-like structure at the roof edge of a building, together with the roof edge termination instead of a gutter. As already known from half-round gutter drainage, parapet siphonic flow systems are also a form of external drainage. For this purpose, the roof construction is planned with a slope towards the parapet or subsequently refurbished with tapered insulation towards the parapet, so that sufficient water can be fed to the parapet drains.

Fewer drainage points thanks to high performance

Particularly advantageous in this context is the small number of necessary drains or low points thanks to the high discharge capacity of the individual roof drainage systems. For example, the parapet siphonic flow system from LORO offers a discharge capacity of up to 32 liters per second with one drain. It can replace up to ten conventional 500 millimeter wide parapet openings or up to ten commercially available single parapet drains with gravity flow as a main or emergency drainage system.

Main drainage and emergency drainage

• The main drainage has the task of safely discharging the water from the roof through the roof drainage system into the sewer system during normal rainfall. A rain standpipe with cleaning opening at the end of the downpipe forms the interface to the underground pipe connection.
• The emergency drainage has the task of discharging the water during heavy rainfall events not into the sewer system but into the open. This refers to freely floodable areas around the building or specially created retention facilities for rainwater. For this purpose, an emergency drainage system with drain and downpipe for the controlled discharge of rainwater is strongly recommended. Conventional solutions such as spouts without downpipe or simple openings in the parapet as emergency overflows do not meet the requirements of modern buildings.