The
Situation:
Horizontal ceilings covered with granular material need
to be waterproofed for their protection. At the same
time, soil moisture must be drained away safely. Protection
from seepage water is needed for horizontal surfaces
such as, for instance, the covered roofs of underground
parking lots, terraces, and flat garden roofs, as well
as underneath the surface course of parking decks.
DELTA®-TERRAXX:
Extreme Water Flow Is No Problem. When applied to pressure-resistant
structures or waterproof coatings that transmit forces
such as, for instance, rigid or flexible sealing slurries
or cold-setting selfadhesive waterproofing sheets such
as DELTA®-THENE, DELTA®-TERRAXX offers a maximum
of safety. The 2-ply material reliably protects the
masonry and provides drainage for the entire surface.
Permanent soil pressure is distributed, and any moisture
penetrating the upwardfacing filtration cloth is drained
away between the dimples. At about 400 kN/m2, the outstanding
compressive strength of the dimples ensures unimpeded
drainage. When installed under a layer of soil, the
permanent-filtration geotextile prevents the air gap
from being clogged up by sludge. Because of their large
drainage
capacity, DELTA®-TERRAXX high-performance
sheets may be used even in applications where the flow
of water is extreme. Their self-adhesive overlapping
edges as well as their ideal width of 2.40 m make them
economical to lay. Installed as a
second waterproof shell in front of the
waterproofing layer, DELTA®-TERRAXX
represents a universal solution conforming to DIN 18195.
The material is ideal for protecting the covered ceilings
of underground
parking lots, terraces, and flat
garden roofs from seepage water, as well as for installation
under the surface of parking decks. |
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DELTA®-NP
DRAIN:
Safety from Waterlogging and Root Penetration.
DELTA®-NP DRAIN is simply laid straight from the
roll on top of a building structure or waterproofing
layer. It may be easily
cut to length with a knife. To facilitate overlap
sealing, each sheet features an undimpled edge strip
that is about 10 cm wide. DELTA®-NP DRAIN reliably
and permanently protects green undergroundgarage roofs
and parking decks from moisture penetration. Equipped
with a special filtration cloth, this dimpled sheet
reliably prevents waterlogging and root penetration.
Installed in earth-covered ceilings, it will bear
the weight of a
wheelbarrow without problems. When covered by a layer
of soil or gravel of 20 cm or more, it will support
a wheeled loader. Thanks to its special structure
and its relatively closely-spaced dimples, its drainage
rate ranges around 2.25 l/s · m. DELTA®-NP
DRAIN conforms to EN ISO 9001.
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Plaster
Lath 
