Thermal Insulation Products For Buildings

Picture Thermal insulation product

Thermal insulation products make an important contribution to energy conservation and saving our energy resources. A broad range of different thermal insulation products is offered on the market. Their scope of application is as various as their characteristics and the number of existing certification marks.

Therefore the European Standards Organizations CEN and CENELEC established the European quality mark "KEYMARK" giving the manufacturer the opportunity to convince users and consumers of the quality of his products. This meaningful certification gives the manufacturer a market advantage against his competitors.


Das DIN Keymark Logo

The Europe-wide uniformed certification scheme for thermal insulation products shows not only that the manufacturer fulfills the legal requirements of CE-marking but also that all characteristics given in the designation code of the product are tested and surveyed by neutral, independent and competent bodies. That improves the confidence of users and consumers - throughout Europe.


Testing and certification foundations

The KEYMARK is granted in combination with the certification mark "DIN-Geprüft" on the basis of:

  • Specific CEN Keymark Scheme Rules for Thermal Insulation Products of SDG 5 (the responsible European Scheme Development Group) and
  • Certification scheme "Thermal Insulation Products" of DIN CERTCO.

The certification schemes are based on the following product standards:

  • DIN EN 13162:2001-10 "Thermal insulation products for buildings - Factory made mineral wool (MW) products - Specification"
  • DIN EN 13163:2001-10 "Thermal insulation products for buildings - Factory made products of expanded polystyrene (EPS) – Specification"
  • DIN EN 13164:2001:10 "Thermal insulation products for buildings - Factory made products of extruded polystyrene foam (XPS) – Specification"
  • DIN EN 13165:2001-10 "Thermal insulation products for buildings - Factory made rigid polyurethane foam (PUR)products – Specification"
  • DIN EN 13166:2001-10 "Thermal insulation products for buildings - Factory made products of phenolic foam (PF) - Specification"
  • DIN EN 13167:2001-10 "Thermal insulation products for buildings - Factory made cellular glass (CG) products - Specification"
  • DIN EN 13168:2001-10 "Thermal insulation products for buildings - Factory made wood wool (WW) products - Specification"
  • DIN EN 13169:2001-10 "Thermal insulation products for buildings - Factory made products of expanded perlite (EPB) – Specification"
  • DIN EN 13170:2001-10 "Thermal insulation products for buildings - Factory made products of expanded cork (ICB) - Specification"
  • DIN EN 13171:2001-10 "Thermal insulation products for buildings - Factory made wood fibre (WF) products - Specification"

These standards specify the requirements and testing procedures for thermal insulation products concerning the characteristics that are defined in the designation code.

Quality criteria

The following quality criteria are subject to the testing:

For all applications:

  • Thermal resistance and thermal conductivity
  • Tolerances for length and width
  • Tolerances for thickness
  • Tolerances for squareness
  • Tolerances for flatness
  • Dimensional stability
  • Bending strength
  • Reaction to fire

For specific application, provided that these characteristics are declared by the manufacturer:

  • Dimensional stability under specified temperature and humidity conditions
  • Deformation under specified compressive load and temperature conditions
  • Compressive stress at 10% deformation
  • Tensile strength perpendicular to faces
  • Bending strength
  • Point load
  • Compressive creep
  • Water absorption
  • Freeze-thaw resistance
  • Water vapour transmission
  • Dynamic stiffness
  • Compressibility
  • Apparent density
  • Release of dangerous substances

Furthermore the manufacturer has to operate a product related factory production control taking into account the elements of the EN ISO 9000 series.

The conformity assessment for the self- and third party-surveillance as well as the scope of application are set in :

  • DIN EN 13172:2001-10 "Thermal insulation products - Evaluation of conformity"
  • DIN V 4108-10 "Thermal insulation and energy economy in buildings - Application-related requirements for thermal materials - Factory made products"

Testing and assessment

Only those thermal insulation products are certified with the KEYMARK in combination with "DIN-Geprüft" that were successfully tested by a testing laboratory approved by the CEN Certification Board and DIN CERTCO, neutrally assessed and thus proofed the compliance with the relevant standards.

After a positive result of the assessment DIN CERTCO issues a certificate that is unlimited valid, provided that the surveillance (semiannual inspection and annual type re-testing) shows that the preconditions are fulfilled.

All licensees are listed on our website at "database" (unfortunately only in German).

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Thermal Insulation Products