B.8 Coverings installed over gravel/crushed stone beds

In this type of assembly, the area drainage membrane Schlüter®-TROBA serves as a protective separating layer over the waterproofing assembly and protects it from the impression of individual stones. Additionally, the product prevents the formation of “ice concrete” when water freezes on the waterproofing assembly. Schlüter®-TROBA allows for the permanently effective drainage of water that seeps through the open joints between the self supporting pavers. Thanks to the special trapezoid shaped studs, loads are directly transferred to the waterproof substrate.

B.8 Loose installation on Schlüter®-TROBA in gravel/crushed stone beds

Capillary layer
Concrete slab
Sloped screed

The construction has to be sufficiently sloped (1.5 - 2%) to allow for proper drainage.
Waterproofing assembly according to DIN 18195.
Schlüter®-TROBA

A protective drainage layer installed over waterproofing assemblies as an underlayment for crushed stone or gravel. It consists of a high impact, studded polyethylene mat with openings to the drainage channels. It is important to ensure a drainage channel.
Gravel or crushed stone bed.
Large format self supporting pavers

Made of concrete, natural stone or ceramic material.