Air Brick Buff



  • MV250 Airbricks for underfloor ventilation should be located on opposite sides of the building.
  • At 3.0m centres they will provide 1500mm² per metre of wall which complies with building regulations.
  • However Glidevale recommend a closer spacing of 2.0m centres to avoid the risk of stagnant air pockets.
  • This will achieve the most efficient mix and distribution of air flow.
  • MV250 Airbrick: Ventilation area 6000mm2
  • Colours: terracotta  buff  anthracite black
  • Driving rain resistant
  • Standard brick face dimensions
  • Injection-moulded components
  • Can be stacked in multiples
  • Can be used with MV255 Straight Sleeve and MV251 Periscope
  • Technical Data Sheet

Modern construction using higher levels of thermal insulation requires increased levels of ventilation within the building fabric to prevent the build-up of moisture and condensation. The increase in U-value requirements from 0.45 to 0.25 W/m2K for floors and from 0.45 to 0.35 W/m2K for walls in the revised Building Regulations Part L has heightened the importance of ventilation. With the increasing awareness of hazardous subsoil gases such as radon and methane the need for underfloor ventilation has become even more apparent. Glidevale have a range of underfloor through-wall and cavity wall ventilation products which meet the regulatory requirements and provide protection against driving rain birds rodents and large insects.

Additional information

Dimensions 0.4 cm


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SKU: MV250BU. Category: .