As often happens, on every project you always encounter something new. And this time, exactly such a question arose. From the developer, the floor slab was poured with monolithic concrete. And in both the bathroom and toilet, electric floor heating was installed without thermal insulation — not at all. The floor heating cable was laid directly on the slab, and then a 3 cm thick screed was poured, on top of which tiles were laid.

Thus, half the heat from the cable went into heating the reinforced concrete floor slab, in other words, it was heating the ceiling of the neighbors below.

Since there was no possibility of raising the floor higher and the pour thickness was only 3 cm, I decided to do it as follows.

We clean the floor of everything unnecessary, knock off the irregularities, vacuum. Then we prime. We take silane adhesive from Bona, comb B3 and apply the adhesive to the first row.

We take parquet underlayment 5 mm thick. It perfectly transmits heat upward and reflects it.

And we begin to glue the underlayment to the floor, smoothing and pressing well so there are no irregularities.

When the entire floor is glued with underlayment, we let it dry for 4 hours. Then we take the heating cable fastening tape and mount strips to the floor with 5 mm dowels and small screws. The main thing is to make sure the tape is taut.

After this we install the heating cable.

We run a 16 mm tube for the floor temperature sensor. We insert the sensor into the tube.

The next stage is pouring the floor with Mira 6700.

The pour is complete.

To be continued...

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