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Powerlon Ultrablock 200 Vapour Control Layer - 1.6m x 50m

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Powerlon Ultrablock 200 is a thermo-reflective reinforced vapour barrier. Manufactured with encapsulated aluminium foil or metallised barrier layers, the design of the Ultrablock vapour barrier ensures maximum energy efficiency for your project.

The reflective foil surface improves the insulation characteristics of the installation. This is done by the material reflecting heat into the building. The air barriers ensure the building envelope is properly sealed. This helps control ventilation and prevent heat loss in compliance with Building Regulations part L.

Features & Benefits: Powerlon Ultrablock 200 Vapour Control Layer - 1.6m x 50m

  • Multi-purpose
  • Thermo-reflective
  • Reinfornced
  • Excapsulated aluminium foil or metallised barrier layers for maximised energy efficiency
  • Reflective foil surface for improved insulation
  • FR suffixes for indication of flame retardant grades
  • Interstitial condensation prevention for insulates
  • Increases building airtightness
  • Suitable for roof, wall and floor installations
  • Acts as an air barrier to control ventilation
  • High tensile strength reinforcement
  • Choice of grades
  • Thermal reflectivity: 0.64
  • Thermal emissivity: 0.36
  • Thermal reflective foil barrier

The impermeable quality of the air barrier that VCLs have also means an increase in building airtightness.


  • Vapour control layers (VCLs) are installed on the warm side of the insulation, which protects the insulation from condensation. The impermeability of the air barrier also means an increase in building airtightness.

Standards & Certification

  • Support ventilation control (in accordance with Building Regulations part L)
  • Support prevention of heat loss (following Building Regulations part L)


Length 50m Width 1600mm


Roll Size 80m2 Weight 8.8kg

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Powerlon Ultrablock 200 Vapour Control Layer - 1.6m x 50m

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