Aufnahme einer Wohnküche mit weißen Möbeln und einem hellen Holzfußboden unter dem eine Fußbodenheizung verlegt wurde

Underfloor heating systems for the climate turnaround

Our heating screeds level the field for the heat pump

We need to reduce heating energy consumption in buildings in order to achieve the climate turnaround. This applies in particular to existing buildings. Surface heating systems, such as underfloor heatings play an important role. They indeed work with lower flow temperatures than conventional radiators and distribute the heat more evenly throughout the room. This means less energy is consumed and less CO₂ is generated. For this reason, underfloor heating systems are particularly environmentally friendly.

Energy sources which protect the environment like heat pumps or solar systems often provide lower flow temperatures than oil or gas heating systems. With these forward-looking energy sources, underfloor heating systems therefore make a lot of sense.

There are different types of underfloor heating systems, in particular electrical and hot water heating systems. Almost all heating systems must be covered with a specific heating screed, which should have a high thermal conductivity and at the same time be resistant to frequent heating and cooling stages. Calcium sulphate or cement screeds are well suited for underfloor heating systems.

Why thin-layer heating screeds of Weber?

Saint-Gobain Weber supplies high-quality calcium sulphate heating screeds which neatly enclose the pipes of the underfloor heating systems, transport the heat and at the same time harden with low stress.

The thin-layer systems only require a pipe cover of a few millimeters and are particularly suitable for the renovation of existing buildings where only limited room heights are available.

Weber Heizestrich wird aus einem Schlauch auf eine Rohre einer Fußbodenheizung gepumpt

Construction recommendations for all applications

We offer a total of seven installation recommendations for floor constructions with underfloor heating in order to make the work of screed and floor layers easier.

They cover all installation situations, from standard applications to special requirements, whether electric or warm water heating systems, in a bonded system or on a separating layer up to retrofitted milled-in old screeds and also surface heating systems in outdoor areas (for ex. on loading ramps).

Thin-layer underfloor heating on step-resistant insulation layer / separating membrane

Thin-layer anhydrite screed weber.floor 4190 on warm water underfloor heating with a step-resistant insulation layer or separating membrane.

To system solution

Outdoor heated surfaces

weber.floor 4640 Outdoor RepFlow in electric underfloor heating for the construction of outdoor heated surfaces.

To system solution

Thin-layer heating floor on tacker sheets / dimple sheets or on velcro fleece systems

Fibre-reinforced thin-layer heating screed weber.floor 4180 on the thin-layer heating floor installation on tacker sheets (with anchor clips) / dimpled sheets or on velcro fleece systems.

To system solution 

List of the main standards for floor heatings

DIN 1055Design Loads for Buildings
DIN EN 1264Heating floor, systems and components
DIN EN 13813Screed material and floor screeds - Screed material - Properties and requirements
DIN 4108Thermal protection of Buildings
DIN 4109Acoustic protection in Buildings
DIN 18195Waterproofing of Building Structures
DIN 18202Tolerances in Building Constructions
DIN 18353 VOB, Teil CGeneral Technical Specifications in Building Contracts - Laying of floor screeds
DIN 18560Floor screeds in Building Constructions
 Interface coordination for surface heating and surface cooling systems in new buildings