TM-S 20 Great Knobs Membranes in Tunnel Constructions

Especially tunnel projects depend on effective accompanying measures of drainage. No problem for TM-S 20: installed vertically against the rock with the knobs facing outwards, these form a perfect drainage system. Like in a channel, the water from the rock is drained through the knobs and led around the construction trench. With a gravel base course placed under the invert, the groundwater level can be balanced on both sides of the construction optimically.

Safety and usability of a tunnel always depend also on the fact whether inner shell and invert can be durably protected against water damage and subsequent frost. The best solution is found when surface and layer waters are largely collected in the upper and lower area between the inner and outer shell of the tunnel and then conveyed away through drainage and percolation layers.
 


TM-S 20 Great Knobs Membranes in Underground Car Park Constructions

IDuring the construction period TM-S 20 enables controlled drainage of water so that the setting process of the concrete is not impeded by moisture.
If placed vertically, TM-S 20 can be used as percolation layer; i.e. it drains the confined ground water from the sides down to the annular drainage.
In horizontal placing, TM-S 20 is installed between foundation plate and surface layer. With a rising ground water level, the water is conveyed away into the Drain Pipe.
 

TM-S 20 Great Knobs Membranes   as cavity control layer
With the storage of water-endangered liquids, the ground and waters must become particularly secured. If one combines a barrier layer with TMS 20 Great Knobs Membranes and it develops a leakage, now the chemicals can run out on the seal and becomes in the Knobs Crater, which directed downwards, caught. The expired liquid and can be easily and timely detected and rinsed out by special piping.


TM-S 20 Great Knobs Membranes   as lost formwork
TM-S 20 can be used horizontal and vertical as lost formwork between spraying concrete sheeting and building wall. The spraying concrete works like a filter and prevents undesirable seep of particles into the soil.


TM-S 20 Great Knobs Membranes as flood protection
As flooding protection laid out, the TM-S20 protects also from wet feet in endangered areas: between concrete and base plate with downward gradient moved, crosswise- pressing water is derived over drainage and can be evacuated.

Technical specifications of roof greening

Material thickness      HDPE approx. 1000 g/m2
Burst pressure            approx. 180 kN/m2
Knob height                 approx. 20 mm
Roll dimensions         1.9 x 20 m

also available              in sheets upon agreement

TM-S 20 Knob Membranes perforated for roof greening

The high drainage and water storage capacity of this knobbed roll makes it perfectly suitable for
Greening Garages and flat Roofs. There is a wide range of plants such as grasses, spices, sedum,
phlox, sempervivum, and many others to choose from

Two essential requirements must be fulfilled:

• The load-bearing capacity of the roof must be sufficient for the greening
• The seal must function properly

Advantages of green roofs:

• Protection of the waterproof membrane against radiation,
   Temperature and atmospheric influences
• Additional thermal insulation
• extended service life of the roof
• Living space for animals and plants
• Improved sound insulation
• Absorption of dust and pollutants

 Construction of the green roof:
 1 roof
 2 waterproof membrane
 3 root barrier for the waterproof membrane
 4 TM-S 20 as drainage and water-storage
 5 fabric as filter
 6 soil, substrate
 7 plant material
 

Importantly: Particularly for the roof planting + supply
we manufacture the TMS 20 also as perforated plates of 190 x 119 cm dimension.

This means optimal physical conditions for the entire roof
and for all planting a continuously available Water reservoir.

TERRA–MEMBRANE  … the Solution

Interested?