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AXS 140 combined AOV smoke ventilator and roof access hatch

AXS 140 is a combined AOV smoke ventilator and roof access hatch designed providing either 1.0m2 or 1.5m2 measured free area in accordance with Approved Document B, Appendix C. It is suitable for use as a staircase ventilator or roof mounted lobby/corridor ventilator and to provide external roof access. It has been tested to and is in compliance with BS EN 12101-2 and is CE marked. It is manufactured under the ISO 9001 quality and ISO 14001 environmental management standards.


The following performance attributes follow tests to EN 12101-2:2003 (standard for smoke and heat exhaust ventilators). The exact performance attribute will depend on the chosen size, controls, and flap type.
  • Reliability: RE 50 (1,000 cycles)
  • Wind load: 1500 N/m2
  • Snow load: 250 N/m²
  • Resistant to heat: B 300
  • Low temperature class: T(-5)
  • Materials resistance to fire: E (to EN 13501-1)
  • U value: Up to a maximum of 1.3 W/m²K (aluminium lid version), 2.4 W/m²K (polycarbonate lid version)
  • Watertightness: rain defence tested to 75m/hr @ 13 m/sec
  • Air permeability: Class 4 to BS EN 12207:2000
  • Sound insulation: (R'w) 29 dB R’w


Tested to and in compliance with EN 12101-2 and CE marked.

Please contact us for more information relating to the application, specification, installation and servicing of this product.

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