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De drainage and reservoir boards
APP offers various drainage boards for extensive and intensive
rooftop garden projects. All drainage boards are made from
high-quality recycled materials. External laboratories, whose tests
adhere to the most stringent requirements, confirm this quality.
"The drainage course contains sufficient space to
take up any excess water, which it then channels to the roof
outlets. Provided suitable materials are used, this course can also
act as a water reservoir, and it can both increase the space for
root-growth and protect the underlying structure" (FLL).
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Advantages
- The most widespread solution, due to its optimal
technical values regarding water retention, load-bearing
capacity and drainage.
- Water-retentiveness, ventilation and drainage of excess
water in one go
- Great load-bearing capacity augmented by the egg-box
structure.
- Eco-friendly recycled plastic material
- Low weight and installation height compared
with mineral drinage layers
- Easy, quick installation
- Economical delivery and storage format, because the
sheets can be packed together without leaving any spaces
Installation
Advice
The drainage boards are generally laid
adjacent one another on a protection membrane. On roofs with a
minimal pitch, the boards should be laid with an overlap of
one to two rows. In order to prevent the silting away of the
roof garden, a filter layer of 130-200 g/m2 needs to be added.
The substrata lay on top of this, and these are topped by the
vegetation layer.
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DiaDrain-60
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Recommended for use in intensive roof
gardens with a medium to high regularity of use, e.g. public
terraces, rooftop playgrounds, subterranean garages, exotic
gardens, etc. |
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DiaDrain-40
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For installation in multi-layered
intensive roof-gardens with a low to medium regularity of
use, e.g. private garden patios, roof walkways, roofgardens
with water features etc. |
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DiaDrain-25
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Recommended for use in
Multi-layered extensive roofgardens and for directly under
terrace tiles.
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Technical Data
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Dim |
DiaDrain-25 |
DiaDrain-40 |
DiaDrain-60 |
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Height |
[mm] |
25 |
40 |
60 |
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Areal Dimensions |
[mm] |
1960×900 |
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Volume ca.
Drainage capacity
Load-bearing capacity
Thickness |
[l/m2]
[l/m2]
[kN/m2]
[mm]
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10
9,52
280
1,2 |
18,0
16,80
140
1,6 |
28,8
14,25
270
2,5 |
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Material |
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Recycled-Polystyrenel |
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Colour |
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Anthracite |
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Packing unit |
[m2/Pal.] |
700 |
500 |
350 |
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Laying |
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Slope 0-1°: adjacent, 2-3°: overlapped
by one row |
Fulfills DIN 4095 prescriptions for drainage values. (DIN 4095 standard values:
0.3 l/m2•h in front of walls, 0.03 l/m2•h on ceilings, 0.003 l/m2•h unter
floor-tiles)
*DIN
4095 **i=1 |
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