Today, the world has a heightened understanding of the importance of energy-efficient products. Consumers are more aware of energy ratings, carbon savings and the thermal benefits available. This continues to drive the need for greater thermally-efficient and cost-effective solutions, to reduce the carbon footprint of our buildings. BBA Test Services perform a wide range of tests on a variety of insulation products, including rigid boards, foam, multi foils, loose bead and fibre for use in wall, floor and roof applications.

Test areas related to insulation

Specialist areas

Cavity Wall

  • Adequacy of fill
  • Characterisation tests
  • Partial fill residual cavity test
  • Thermal conductivity
  • Water resistance

Inverted roofs

  • Compressive strength
  • Freeze/thaw resistance
  • Water absorption by diffusion
  • Water flow test

All insulation products


  • Freeze/thaw
  • Heat ageing
  • Thermal performance after ageing

Energy Efficiency & Thermal Performance

  • Compressive creep
  • Compressive strength
  • Deformation under load at increased temperatures
  • Dimensional stability
  • Emissivity
  • Mechanical testing
  • Shear strength
  • Tensile strength (parallel and perpendicular to faces)
  • Thermal conductivity and resistance (heat flow meter)
  • Thermal transmittance (U-value) – Guarded hot box

Water Penetration & Water Vapour Permeability

  • Water absorption (partial immersion, total immersion and by diffusion)
  • Water vapour permeability

Key test methods

  • CE Marking testing to relevant harmonised Standards
  • Notified body, including λ90/90 measurements
  • Registered Keymarking Laboratory
  • Regular audit testing
  • Research and development
  • Test reports can be used to obtain an Agrément Certificate
  • UKAS accredited testing laboratory No. 0357

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