140° Smoke Vent Roof Hatch with Daily ventilation

Surespan SRHP/AOV 140° thermally broken aluminium smoke ventilator and roof hatch designed to EN12101-2. The AOV also offers push button comfort (daily) air ventilation.

The lid and upstand features a 50mm thermally broken section and fully insulated with 50mm CFC and HCFC free Polyisocyanurate insulation (0.43 W/m²K). Alternative non-combustible Mineral Wool insulation can be specified at no extra cost. (0.63 W/m²K)

The Smoke vent comes with a 300mm insulated upstand and is fitted with an aluminium curb liner as standard.

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+44 (0)1922 711185


  • Sizes in stock 1050 x 1050 and 1260 x 1260
  • Bespoke sizes from 900 x 900 to 1300 x 1300
  • CE marked to EN12101-2
  • Daily Ventilation as standard
  • Personnel Access as Standard
  • Aluminium with 50mm Thermal Break lid
  • Curb liner as standard
  • 300mm Insulated Upstand

Standard Sizes

1050 x 1050
1260 x 1260

UK Buy Online Only Price – Exclusive to Addlite.co.uk.


EN12101-2 TestTest Results
Performance Characteristics to EN12101-2
Size – Structural OpeningEN12101-2 Free Airflow Aerodynamic Area (Wind Deflectors)Approved Document B Geometric Area (Without Wind Deflectors)
1050 x 1050 With Curb Liner0.69 m²0.94 m²
1260 x 1260 with Curb Liner1.0m²1.40m²

Surespan’s 140 Vent is designed to stay open at a 140 degree angle to ensure that heat are diverted away from the opening and cannot be blown back into the building by wind.

Our cover opens to its fully open position within 60 seconds of activation.

Contact us

Monday - Thursday 8:30 AM - 5:00PM
Friday 8:30AM - 4:30PM
Saturday - Sunday Closed
Optional Features
Powder coated roof hatch

External powder coating to any RAL colour.

140 Automatic Opening Vent

Internal powder coating to any RAL colour.

Dome Rooflight Lid

ZIP Ladder Smoke Vent

With retractable ladder.

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