Tiler Instructions
This floor has been fitted with a Warmtech undertile heater. Please read the
following tips to ensure safe tiling and prevent accidental damage to the
heater.
(The heating element is a double insulated multi-stranded element and is
designed to withstand normal tiling practices. We do ask that you take special
care to ensure its integrity.
Additional care should be taken after tiling
when cleaning out between the tiles prior to grouting
. This is when you are
most likely to cause damage to the heating element).
The element is adhered to the floor with a combination of adhesive tape and
concentrated latex (SBR type) adhesive. The floor must not be walked over
until the adhesive has dried clear (24 hours depending upon the ambient
room temperature).
With care you can tile directly over the element. We have found that using a
thin bed application method with a 10mm-12mm notched trowel works best.
It is recommended that all elements are covered with a leveling screed or
diluted mix of the tile adhesive to be used – to ease tile installation and
further reduce the chance of accidental damage. Either way a flexible
adhesive must be used. Latex modified (acrylic, PVA, SBR) cement based
grout should be used with at least a 10% “by weight of solids based” content
of latex.
If waterproofing is required but has not been installed prior to the heating
installation, it may be possible to waterproof over the heating elements.
Confirmation regarding its acceptability to be installed over the heating
should be obtained from the waterproofing supplier.
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