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Spooled Underfloor Heating Kit
36
Choice of heatinsulation
In case of installing the system in cementandsand
screed, we recommend you to put a layer of hard heat
insulating material (Styrofoam), 30–80 mm in thickness,
on a subfloor and then a 5 cm screed. Next, an assembly
tape is fixed, and installation works continue as described
in paragraph 5 above. Floor crosssection:
When I-WARM system is to be installed under tiles,
heatinsulation is not allowed since it can lead to cracks in
the 5–8 mm adhesive solution layer above the heating
cable.
3 cm cement-and-sand
screed
30–80 mm Styrofoam
subfloor
slab
decorative
finishing
5 cm cement
and sand screed
heating element
assembly tape
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