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SRHP/ AOV Automatic Smoke Vent Roof Hatch with Comfort ventilation


Delivery 5-7 days
SRHP/140° Thermally Broken AOV automatic smoke vent roof access hatch with push button comfort ventilation. Tested and CE Marked to EN12101-2. Available in any size up to 1260 x 1260 solid aluminium lid or polycarbonate dome.

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    Internal RAL

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SKU: SRHP/AOV Category:


Surespan SRHP/AOV 140° thermally broken aluminium AOV automatic smoke vent and roof hatch designed to EN12101-2. The AOV also offers push button comfort ventilation in one package! This one stop solution for smoke vent requirements to meet building control can achieve 1m² airflow and are available in standard stocked sizes or made to any size in between 900 x 900 and 1260 x 1260. Smoke vents come with wind deflectors to improve airflow.

The smoke ventilation unit is fully insulated and thermally broken with a 300mm insulated Upstand for weathering up to. The lid is filled with 50mm CFC and HCFC free insulation offering a U-value of 0.43 W/m²K. Non-combustible mineral insulation also available.

NOTE: Structural opening for this AOV is the listed size. i.e 1050x1050mm Smoke Vent = structural opening of 1050x1050mm

Automatic Smoke Vent Testing

  • RE 1,000 Ventilation and 10,000 Opening
  • Offset mechanism for Roof Access
  • Snow Load of SL500
  • Wind Load of WL1500
  • Temperature Class T (-15°)
  • Fire Resistance Class B300
  • Aerodynamic tests (measured values): With deflectors: Cv from 0.66 to 0.73, Without deflectors: Cv from 0.42 to 0.56


  • Solid aluminium cover or Polycarbonate Dome
  • 50mm Thermally Broken
  • 300mm Fully Insulated Upstand
  • 140° Opening via 24 VDC Actuator
  • CE Marked to EN12101-2


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Additional information

AOV Sizes

1050 x 1050, 1260 x 1260


Standard Polyisocyanurate (0.43 W/m²K), Non-Combustible Mineral Wool (0.63W/m²K)