Non-street drains

TeraPlast offers a professional range of high-drainage capacity receivers for large flat roofs, produced by HL Hutterer & Lechner Gmbh, a company with a tradition of over 60 years in the field of developing innovative products for surface drainage applications (floor drains, roof and terrace receivers, aerators, etc.).

For the drainage of water from roofs with large surfaces in a conventional (gravitational) system, HL offers solutions for almost any type of roof construction. The challenge for architects, designers and installers is great. Depending on the types of roof construction, the structure of layers, the types of waterproofing used and the roof destination, various combinations of receivers and accessories are required. See also Street drains.

TeraPlast complements its range of receivers with high drainage capacities for the roof with a range of receivers for terraces and balconies in order to be able to offer professional solutions for these types of applications as well.


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In general, the rainwater from terraces or balconies is drained using receivers of medium or small drainage capacities.  Receivers for terraces and balconies from HL allow the drainage of surfaces between 16sqm and 100sqm with a single receiver (considering rain intensity of 300 l(secxha).

Thus, the range of receivers for these applications includes receivers for terraces, with high drainage capacities, made of PP, with side (D75mm) or vertical (D75/110mm) outlet connections, as well as receivers with lower drainage capacities, for medium and small terraces or balconies, made of PE, with side (D40/50/75mm) or vertical (D50/75/110mm) outlet connections.

As a result, HL offers the possibility of building terraces with even a single rainwater drainage point. To choose the appropriate receivers and accessories, it is necessary to know the detailed plan of the terrace structure (ceiling material, thermal insulation, waterproofing used, the existence or not of diffusion membranes or condensation barrier, layer thickness, etc.)./p>


You can find all the TeraPlast documents here

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