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European minimum insulation acc. to EN 1264-4

After introduction of the Energy Saving Regulation (EnEV) on 01.02.2002 a minimum insulation acc. to EN 1264, Part 4 for floor heating systems is valid for all European countries to the contract.

This standard is effective for floor heating systems in residential buildings, in offices and all buildings similar to residential buildings.

Energy Saving Regulation EnEV

The Energy Saving Regulation EnEV  is in force since 01.02.2002.

For construction applications from 01.02.2002 the EnEV  must be applied.

The EnEV is only effective for the Federal Republic of Germany. The minimum insulation acc. to technical rules is required herein.

The following has to be considered for hot-water underfloor heating systems:

flat separation ceilings against unheated rooms = requirements acc. to DIN 4108-4

ceilings against unheated rooms = requirements acc. to EnEV

ceilings against ground = requirements acc. to EnEV

ceilings against outside air = requirements acc. to EnEV

Designs with better insulation than required in DIN 4108-4 or in EnEV should be passed to the planner.

The following regulations and DIN-standards also have to be considered exactly.
(Individual regional regulations are disregarded)

General standards and regulations:

  • DIN 4102    Behaviour of materials and components in fire
  • DIN 4108    Thermal insulation in high buildings
  • DIN 4109    Sound insulation in high buildings
  • DIN 18195    Buildings sealing
  • DIN 18202    Dimensional tolerance in high buildings
  • DIN 18336    Sealing against pressing water
  • DIN 18337    Sealing against non-pressing water

VOB Contract procedure for building works, part C

  • DIN 18352    Tiles and plate works
  • DIN 18353    Screed works
  • DIN 18356    Parquetry
  • DIN 18365    Floor covering works

Components of the floor construction

  • DIN EN 13813     Screed mortar and screed compounds
  • DIN 18560    Screed in building works

Conditions for installation

The conditions for placing on site have to be checked prior to starting the installation.

The following conditions are required for a perfect installation:

1. Walls and ceilings have to be plastered, tiled or prepared in such a way that there is no dirt accumulation after placing of the underfloor heating.

2. Windows and outside doors have to be installed.
(Screed has to be protected against weather!)

3. For rooms adjacent to the ground a humidity sealing as per DIN has to be installed. If there is no sealing, the works supervisor must be informed in order to clarify the conditions prior to the start of installation.

In case of buildings sealing made of bituminous material or other plasticizer separating materials an intermediate foil has to be laid before placing the polysty-rene heat impact sound insulation. On using polyurethane HR foam boards the intermediate foil is not necessary.

4. The grounding may not have coarse unevenness, point bumps, different levels or insufficient solid surfaces.The tolerance of flatness must correspond to the requirements of DIN 18202 “Tolerances in high buildings” (flatness tolerances for surfaces of covers and walls).

The requirements of DIN 18560 as well as DIN EN 1264 have to be considered. The rough concrete cover has to be cleaned by the customer.

5. The aquatherm orange system-manifolds are installed and tested under pressure.

6. Connecting supplies for individual room control are planned and laid.

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