Compliant to EN12101-2 : 2003, SHEV’s are utilised to provide 0.7 sq/m of aerodynamic smoke exhaust ventilation at the head of an escape stair. Aerodynamic free area is stated on the proof of compliance document, the Declaration of Performance (DoP).
Where access is required to the roof from the escape stair, a combined AOV and Access Door is utilised. Compliant to EN12101-2 the door remains locked for security purposes and opens when activated by the smoke extraction controls system. A key switch located at the head of the stair, linked to the smoke ventilation controls system provides maintenance access whilst negating access for non-authorised personnel.
Compliant to EN12101-2:2003, the 140 degree opening rooflight is utilised to provide 0.7sq/m of aerodynamic smoke exhaust ventilation at the head of an escape stair. The curb is available with uninsulated or insulated options and the lid glazed with an aluminium infill (insulated or non-insulated) or polycarbonate glazed infill.
Compliant to EN12101-2 : 2003, the aluminium louvre is utilised to provide 0.7 sq/m of aerodynamic smoke exhaust ventilation at the head of an escape stair. Blades can be single or insulated double skin aluminium or polycarbonate. It is also available as a combined AOV and access hatch to gain access to the roof from the stair.
The SHEVTEC glazed louvre is tested to EN12101-2 with an aerodynamic free area of 0.9 sq/m for an end of corridor AOV application.
Weather performance and interface responsibility must be considered as the louvre has lower performance values when compared to hinged AOV’s manufactured from the proprietary façade system.