32
MORE PAD INDOOR
Valid for floor ONLY
The protective sheet is to be laid over the entire floor
surface, when the floor installation involves aggres-
sive cements and adhesives and/or when the laying
centre distance exceeds 150 mm in order to favour
the uniformity of the surface temperature. Along the
joint lines of the sheet, overlap at least 5 cm.
Use tape (packing tape or similar) to seal the edges
of the protective sheet, preventing mortar or glue
from penetrating underneath.
Valid for floor ONLY
It is always advisable to use a self-levelling water-
based cement screed, with a minimum thickness
of 2 cm, suitable for radiant floor systems. The
self-levelling agent must be used to eliminate any
irregularities caused by the wiring, as well as to
prevent the joints from sagging.
For the installation steps and instructions, follow the
guidelines given by the manufacturer of the screed
and the installer of the surface finish; the thickness
of the self-levelling agent will depend on the type
and size of the finish.
Wait for the self-levelling agent to dry completely to
avoid abnormal shrinkage and cracking, then switch
the system on again in the test cycle for at least 24
hours.
Valid for floor, wall or ceiling
Fasten the strings with metal staples on both sides
and at each metre, taking care to lap only the
outside of the polymer by 2/3 mm, without touching
the braids of the electrical struts.
Alternatively, use plastic nails or paper tape about 5
cm long. The only purpose of fixing is to prevent the
mat from shifting during the subsequent finishing
stages
Another alternative to staples and nails to
temporarily secure mats to the substrate, is solvent-
free reinforced double-sided tape, such as MAPEI
Mapecontact, 240 mm wide.