Additional information regarding floor heating:
- floor heating is not necessary for quartzite and slate, but it is possible from an architectural point of view. For underfloor heating under light natural stone floors, always use galvanized building steel mats on which the hoses can be attached. The application of glass fiber fibers also helps to absorb shrinkage and expansion. Start-up of the underfloor heating 5 degrees per 24 hours. After 28 days and at least after screed installation. Placing natural stone only after the underfloor heating has run at max. Capacity for 3 – 7 days, after which it gradually returns to the starting temperature. Turn off the underfloor heating for 3 days before impregnating the floor.
- Never install in the traditional way (mortar layer on stabilized sand bed).
- Bond tiles to a dry, paved screed in which a reinforcement net has been placed.
- Expansion joints, apply expansion joints correctly. Dilatations must always be continued straight up in the mortar bed and in the natural stone floor. Keep the transition from floor to wall 10mm free and provided with a foam strip. For very large floor areas, it is recommended to divide the floor area into 50m2 squares or rectangles. Max. length – width ratio never again 1-2.
- Apply good thermal insulation to the concrete floor, above which a reinforcement mesh. A foil is placed between the two, place the heating pipes above the insulation and completely enclose it with the screed, thickness of the screed at least 75 mm.
- Bonding tiles to a dry screed.
- Prefer not to use skewed tiles, but to work with straight joints, i.e. square / angled tiles.