The safe drainage of balconies, terraces, log-gias and pergolas comes more and more into the focus of designers and processors.

The wide range of LORO-X balcony drains made of galvanized steel in combination with LORO-X steel discharge pipes and fittings helps finding the exact drain

There are basically two different ways to drain a balcony: Either using single drains with a pipeline offset going into the downpipe or using direct drains for the direct feed-through of the downpipe through the balcony drain.

Single drains are used if the downpipe shall run outside or rather alongside the balcony. The advantage: The balconysurface remains com-pletely free. However, under every balcony the pipeline has to run horizontally to the downpipe or has to be set in concrete.

Direct drains “directly” transport the rainwa-ter into the downpipe coming from the upper balcony. The advantage: Horizontal offsets can be omitted. The downpipe, e.g. a shockproof LORO-X downpipe, will run as near as possi-ble alongside the wall from the highest to the lowest floor and through the balconies that are lying one above the other.

Balcony fittings with “one” drainage level consti-tute balcony fittings with one drain set into the roofing sheet where the water can only flow into the drain via this sealing level.

Balcony settings with a slab covering instal-led above the roofing sheet, for example on a stilt support or a gravel fill, offer “two” drai-nage levels. A height adjustable strainer unit will be installed on the balcony drain. That way the rainwater can flow off, on the one hand, from the slab covering above into the strainer and, on the other hand, from the roofing sheet below through the drainage ring.

Balconies without thermal insulation are drained with “one-piece” drains whereby the drain is installed below the roofing sheet in the concrete. 

Balconies with thermal insulation are drained with “two-piece” balcony drains whereby the drain is set into the thermal insulation. Below the thermal insulation, a bottom unit secures the impermeable feed-through of the drainpipe through the vapor barrier.

Factory-fitted connecting sleeves are suita-ble for common sealings of balconies with roofing sheets. Normally, sleeves made of a bitumen/EPDM mixture are used. However, when placing the order, alternative foils can be indicated so that the factory can provide the correct connecting sleeve for the object. All immediately available foils can be found in the catalogue.

Clamping flanges for roofing sheets guarantee a maximum of freedom when choosing the material of the roofing sheet. This is because sheets consisting of bitumen as well as those of plastic can both be clamped.

The supporting edge serves the fixation of the drain and should not be used as bonding flan-ge. Therefore, balcony drains with supporting edge are suitable for balconies without roo-fing sheets with mastic asphalt, screed finish or ceramic tiling in the mortar bedding. The supporting edge should be installed flush with the surface of the base in order to guarantee an optimal position for the continuation of the work.

If the downpipe shall be set up vertically bet-ween two already installed direct drains, these constitute two fixed points. Between those fixed points it is not as easy to establish a conventio-nal push-fit socket connection.

In this case special LORO-X direct drains prove to be useful as their construction is especial-ly designed for this purpose. In a first step, the spigot end fitting of the LORO-X downpipe is placed on the bottom of the lower drain’s base body.

In a second step, the pipe is lifted up into a special, higher positioned holder and fixed there. During this second step, the push-fit socket of the downpipe is simultaneously moved onto the drainpipe of the upper balcony drain.