Ouellet OTM - Manual (Page 14)

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Clearly indicate all dimensions. A minimum of one horizontal and
one vertical dimensions are necessary to validate the scale.
4.2 Preparing the Subfloor
- Clean and remove any debris, dust, or protruding objects that could damage
the heating cable. The surface must be clean and dry for the adhesive mat to
adhere perfectly to the subfloor;
- Subfloor cracks must be filled with polyester wood filler;
- The subfloor must be solidly fastened in place to prevent movement;
- The application of a floor levelling product is recommended to prevent future
damage to the ceramic caused by subfloor movement;
- For concrete subfloor, apply a surface sealer that is compatible with electrical
heating systems in accordance with the cement glue manufacturer’s
instructions. Completely coat the surface;
- Let dry before installing the Thermat system (refer to the sealer’s instructions for
drying time).
4.3 Marking the Floor
Felt marker
- On the floor of an empty room (under construction or major renovations),
draw the location of stationary elements (toilet, bath, shower, counters, drawers,
permanent furnishings) that will be installed later. These marks will outline the
heating area to ensure the Thermat system is not placed under these stationary
elements (fig. 4.3 a);
- Draw lines on the floor the width of the mat 0.41 m (16”) or 0.82 m (32”);
- Indicate in which direction the Thermat system will be unrolled;
15
cold lead
temperature
sensor
10'
8'
Fig. 4.1