Material

Schlüter®-TROBA consists of a pressurestable polyethylene sheet with a structure of trapeziod-shaped, 8 mm deep, studs. To allow penetration of seepage water, the outer corners of the studs are equipped with holes. The contact area of the matting is approximately 50 %; vault-like drainage spaces constitute the remaining 50 %. The material will not rot and is form-stable within a temperature range of -40°C to +80°C.

Material properties and areas of application:
Schlüter®-TROBA is primarily installed in horizontal applications, over sloped waterproofing layers, according to DIN 18 195- 5. It provides an effective drainage layer between the waterproofing layer and the surface assembly above. Its main areas of application are balconies and terraces, which have been waterproofed.

The loosely placed Schlüter®-TROBA is adequately stable against mechanical stress during the installation process, e.g. it may be walked on or driven over with wheelbarrows used for the transport of required material. The cover construction, consisting of selfsupporting pavers or stone slabs, can be installed over gravel or crushed stone. Schlüter®-TROBA prevents the stones from sinking into the bitumen waterproofing. Water which penetrates the mortar bed is guided, under normal gravitational force, through the drainage cavities of Schlüter®- TROBA toward the drainage exit.