Benefits of Retrofitting Underfloor Heating in Old and Existing Buildings

Retrofit low profile underfloor heating to enhance selected rooms

The FLEXIRO low profile underfloor heating system is optimised to provide thermal comfort by radiant heating in old and existing buildings. In contrast to conventional heatings, the heat is radiated evenly over a large area. Air and dust turbulences are minimised. This improves the indoor climate and promotes general well-being. This is another reason why underfloor heating is becoming increasingly standard in residential construction.

Reasons enough to think about a retrofit solution to enhance your indoor climate at home. Our system kit enables the benefits of underfloor heating to be also enjoyed in old and existing buildings. The low construction height of just 17mm makes it possible to retrofit bathrooms and other rooms on top of the existing surface.

Advantage Warmth and comfort benefits

With FLEXIRO underfloor heating, the heat is emitted evenly over a large area via the narrow loops in the flexible plastic pipe. This is why our thin-layer heating can already work with low supply temperatures and generates astonishing thermal comfort. Thanks to the high radiation component, which is additionally reflected by walls and ceilings, underfloor heating creates a feeling of well-being at an indoor temperature of 20°C, which conventional heating with radiators can only achieve at 22°C.

In addition, the lower supply temperature ensures efficient use of energy and comparatively low heating costs. The following illustration shows the temperature curves for different types of heating compared with the climate zones in the human body. No type of heating comes as close to this ideal as underfloor heating. This results in a uniform temperature pattern, which ensures a pleasant feeling of warmth throughout the body.

Especially in the bathroom it is a delight to walk barefoot over the comfortably warm floor. Your family will thank you for it.

Advantage Health benefits

Thanks to the comparatively low surface temperatures, there is hardly any air turbulence. This means that fewer allergens circulate in the air. It’s no wonder that people suffering from house dust allergies choose underfloor heating for this reason wherever possible. In addition, mould formation is actively prevented, as cold bridges at corners or window reveals as well as temperature differences in the room are prevented from the outset by uniformly heating the large surfaces. Water-based underfloor heating creates a comfortable, homogeneous and healthy indoor climate also in old buildings.

Advantage Interior design benefits

Another advantage of underfloor heating is its invisibility. No bulky radiators that restrict your interior design and furnishing possibilities. Underfloor heating systems control the temperature of the room inconspicuously and evenly. The result: Lots of floor space and even more creative scope to furnish the rooms individually. Your design options are also not limited when it comes to choosing the floor coverings. Natural stone, parquet, laminate, tiles or carpet. Anything is possible.

Advantage Economic benefits

Low-temperature underfloor heating systems are not only modern and healthy, but also help to reduce energy costs in old buildings. They also permit the use of all energy sources and are particularly suitable for combining with renewable energies such as solar or geothermal energy.

Does low profile underfloor heating require thermal insulation?

  • In what cases is thermal insulation needed
  • Why thin underfloor heating usually does not need any insulation
  • Which insulation boards we recommend


We provide answers to the most important questions about the insulation of a low profile heating system..