Material

Schluter-TROBA consists of a pressurestable polyethylene sheet with a structure of trapezoid-shaped, 6 mm high, studs. To allow penetration of seepage water, the corners of the studs are equipped with holes. The contact area of the matting is approximately 50%; free space constitutes the remaining 50%. The material will not rot and is form-stable within a temperature range of -40 °F (-40 °C) to 176 °F (80 °C). Schluter-TROBA is used primarily in horizontal applications over sloped waterproofing layers. TROBA provides an effective drainage layer between the waterproofing layer and the covering assembly above. This system is generally used on balconies and terraces, but its applications also include industrial structures, swimming pool decks, washrooms, showers, etc. (all of which have been waterproofed).

The loosely placed Schluter-TROBA is adequately resistant to mechanical stresses incurred during the installation process; i.e., due to foot traffic and wheelbarrows.

The load-distribution layer may consist of a mortar bed with or without a tile covering, or it may be constructed of crushed stone or gravel with a paver or stone covering. It is also possible to apply a covering of soil. Any water that penetrates the covering is collected in the stilted drainage area of Schluter-TROBA where it runs off, under normal gravitational force, toward the designated drainage exit. Thus, permanent saturation of the load-distribution layer, due to seepage water, is eliminated.