1 m2/ m2 |
1. | Cut the IMBERAL® Multidrain 89V from the roll to the exact dimensions and fix with collar dowels or similar. Secure and protect the top edge of sheet. | |
2. | Always push the next length of sheet under the edge of the nonwoven medium when overlapping. | |
3. | Cut into the outer edge of the filter medium and seal the open sheet edges with adhesive tape. For inside corners the IMBERAL® Multidrain 89V only needs to be folded. | |
4. | At the bottom, the sheet should end right up against the drain pipe in the gravel packing | |
5. | Cut out shape with a cutting knife as required to fit round cellar shafts. | |
6. | After completing the work, secure and protect the edges of the IMBERAL® Multidrain 89V sheets. | |
7. | With the foundation trench still open during building work, weigh down the drainage sheet in the bottom area with drainage gravel. |
Roll Bobbled sheet material Colour Filter medium Pressure distributing film Material Bobble height Bobble shape Compressive strength Drainage capacity 0 kN/mm2 – 0 m 10 kN/mm2 – 1 m 20 kN/mm2 – 2 m 30 kN/mm2 – 3 m 50 kN/mm2 – 5 m Temperature resistance Storage | 25 m2 roll = 2.0 x 12.5 m 25 m² roll = 1.25 x 20 m Polystyrene (HIPS) Black Polypropylene Polypropylene 6 mm round 300 kN/mm2 2.3 l/(m/s) 2.1 l/(m/s) 1.9 l/(m/s) 1.8 l/(m/s) 1.7 l/(m/s) -30°C to +80°C dry, 24 months |