|
Owner of data set qsd2 Kft |
Technical purpose The members of QSDrain-B product family are drainage and water storing boards made of recycled polystyrene
(HIPS) for extensive and intensive green roof application. The three product versions satisfy all the needs in relation
to the drainage system on green roofs.
QSDrain-25-Verde-B / QSDrain-40-Verde-B / QSDrain-40-Verde-B2 / QSDrain-60-Verde-B Drainage,
water storage, retention boards:
The drainage system has two key functions: to manage the drainage of excess water from the surface to provide
efficient water flow capacity (measured in l/m x s), but at the same time to retain sufficient water to supply the
vegetation (l/m2
). The strength of the drainage board and its capacity to store a high volume of water are key
characteristics of the product, ensuring a stable layer and the ability to protect the vegetation through drier periods.
The higher storage capacity of these drainage boards also means that they can be equally effective with a thinner
layer, which can reduce costs. The physical stability of the drainage board is measured by its compressive strength
(kN/m2
), determined by the material used and its unique design, which includes diffusion perforations in the
material to ensure effective ventilation and drainage.
QSDrain-25-Free-B / QSDrain-40-Free-B / QSDrain-40-Free-B2 / QSDrain-60-Free-B Drainage, water
storage, retention boards:
A drainage system designed specifically for paved surfaces on top of slabs, which manages the drainage of water
from the pavement through perforations that control water flow effectively. Due to its function, this system has no
need for water storage capacity. The required compressive strength is provided by filling the drainage plate with
grit. The height of the fill depends on the load requirements of the surface. The installation of two movement layers
under the drainage plate maintains the stability of the pavement by balancing the forces on the structure. The
backfilled drainage board also functions as an important layer of insulation protection. The distance between the
RWOs (water channel length) determines the height of the drainage board that needs to be used (25, 40 or 60).
QSDrain-25-LowC-B / QSDrain-40-LowC-B / QSDrain-40-LowC-B2 / QSDrain-60-LowC-B Drainage, water
storage, retention boards:
The stormwater management system is a critical component in the control of urban flash floods. It slows the release
of water from the roof so that the standard drainage infrastructure can cope with sudden large volumes, and at the
same time it has the capacity to hold and store large quantities of rainwater run-off that can be used by plants. This
significantly reduces the burden on the urban sewerage network. It is characterised by a run-off coefficient or "C value" (%), which indicates the percentage of rainfall reaching the roof surface that is discharged into the
wastewater system. The C-value can be adjusted through the use of drainage plates. The higher the drainage plate
(25/40), the greater improvement in both the runoff coefficient and water retention capacity.
The declaration has been conducted for polystyrene drainage boards (QSDrain-25-Verde-B, QSDrain-25-Free-B,
QSDrain-25-LowC-B, QSDrain-Verde-40-B, QSDrain-40-Free-B, QSDrain-40-LowC-B, QSDrain-40-Verde-B2, QSDrain-40-Free-B2, QSDrain-40-LowC-B2, QSDrain-60-Verde-B, QSDrain-60-Free-B, and QSDrain-60-LowC-B)
manufactured in Hungary.
Technical
specifications QSDrain-25-B QSDrain-40-B QSDrain-40-B2 QSDrain-60-B
Dimension (mm) 2360 x 1064 2360 x 1064 1995 x 1003 2360 x 1064
Height (mm) 25 40 40 60
Weight (kg/m2
) 1,36 1,92 1,92 2,2
Material Polystyrene Polystyrene Polystyrene Polystyrene
Building material
class
F (Standard: EN
13501-1)
F (Standard: EN
13501-1)
F (Standard: EN
13501-1)
F (Standard: EN
13501-1) |
