Insulation BBA Polyurethane

BBA certificate for roof insulation polyurethane systems

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Synthesia UK range of polyurethane systems for roof insulation has been granted with the The British Board of Agrément (BBA) certificate, among other products that have also been certified. bba-gama-aislamiento-techos

This Agrément Certificate Product Sheet relates to the Synthesia Range of Insulation for Roofs, spray-applied in-situ thermal insulation for pitched roofs with a roof tile underlay, tiled or slated pitched roofs without a roof tile underlay, the underside of flat roofs and hybrid roofs of new and existing dwellings or similar buildings.

BBA polyurethane system for roofs includes:

  • Factors relating to compliance with Building Regulations where applicable
  • Factors relating to additional non-regulatory information where applicable
  • Independently verified technical specification
  • Assessment criteria and technical investigations
  • Design considerations
  • Installation guidance
  • Regular surveillance of production
  • Formal three-yearly review.

Key factors assessed

  • Thermal performance – Depending on their thickness, the products have a declared thermal conductivity value of between 0.025 W/m·K and 0.027 W/m·K for Poliuretan Spray RF-352D and between 0.026 W/m·K and 0.028 W/m·K for Poliuretan Spray S-353E.
  • Condensation risk – The products have a water vapour resistance factor of 60 (resistivity of 300 MN·s/g·m) for Poliuretan Spray RF-352D and 80 (resistivity of 400 MN·s/g·m) for Poliuretan Spray S-353E. The risk of interstitial condensation will depend on the roof construction and should, therefore, be assessed for each project.
  • Durability – The products will have a life equivalent to that of the structure in which they are incorporated.


Examples of constructive application of Synthesia Internacional insulation polyurethane system for roofs.aislamiento-synthesia-techos-1


For more information please see the following BBA Certification with all the information, including tests, manufacturing processes and requirements for starting work.

BBA Certificate – Synthesia polyurethane system for roof from SynthesiaInternacional

And you can download it at this link: BBA Certificate for roofs – Synthesia Internacional.


You can download the photos of a real polyurethane application on a roof or contact us if you want further information about these or other polyurethane systems from Synthesia Internacional.