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Concrete Underfloor Heating
Brush-finished, tamped or polished concrete, Thermo-Floor underfloor heating is compatible with all concrete finishes
With experience installing underfloor heating with a vast range of flooring types, the experts at Thermo-Floor will help to determine the best installation method for your unique project. For concrete flooring, the most common fitting methods are Wire Mesh, Expansion Joint and Movement Joint.
Wire Mesh
The sub-floor is laid with rigid thermal insulation boards which reduce downward heat losses and provide a base on which to fix the underfloor heating tube. The floor edge is fitted with perimeter insulation which provides a barrier against perimeter heat losses and allows for expansion and contraction of the screed.
Clip rail panels are laid over insulation and secured with fixing staples. The pipe is then inserted into the clip rail and connected to the manifold before relevant tests are carried out to ensure system integrity. Finally, screed is laid over the top. NB: Heated screed or concrete floors will expand and contract slightly during use, the edge insulation is normally sufficient to take up this movement. In some instances and dependent on the desired floor finish (polished concrete, marble, stone, tile) screed expansion joints will be required.
Expansion Joint
Heated screed or concrete floors will expand and contract slightly during use, and, with a floor finish of tile, marble or stone, screed expansion joints will be required. Thermo-Floor polyethylene pipe is made to withstand this movement however pipes that pass through the movement joint are covered with conduit sleeves as a safety precaution.
Movement Joint
If there is a requirement for underfloor heating pipework to run across movement joints in a structural floor slab, a conduit sleeve is fitted to the pipe to allow sufficient movement.
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