Combined AOV smoke ventilator and roof access hatch designed providing either 1.0 or 1.5 m² measured free area in accordance with Approved Document B, Appendix C.

Suitable for use as a staircase ventilator or roof mounted lobby/ corridor ventilator and to provide external roof access.

AXS 140 is a combined AOV smoke ventilator and roof access hatch providing minimums of either 1 m² or 1.5 m² free area in accordance with Approved Document B.

It is suitable for use as a staircase ventilator or roof mounted lobby/corridor ventilator 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.

Product Highlights:

• Dual-purpose: natural smoke ventilator and roof access hatch (1.0 or 1.5 m² free area).
• Certified to BS EN 12101-2, CE marked for life safety and ventilation compliance.
• Opens to 140° for rapid smoke clearance and safe, easy roof access.
• Durable aluminium and stainless steel build with airtight EPDM sealing.
• Thermal U‑value down to 1.3 W/m²K and acoustic insulation up to 29 dB R’w.
• Polycarbonate daylighting option available

Product Technical Information

Dimensions / size range:

• (SM) 1250 x 1000 (throat dimensions).
• (LG) 1250 x 1500 (throat dimensions).

Flap options:

• Thermally broken aluminium frame and insulated aluminium panel.
• Thermally broken aluminium frame and polycarbonate panel.

Fits tightly to frame with continuous EPDM seals for excellent airtightness. Opens to 140⁰ from the horizontal.

Colours/ finishes options:

• Mill finish.
• Polyester powder painted to a RAL colour, standard 40 µm.

Fixing options:

Fixing flange for curb. Installation angle must be at 0° (horizontal).