Smoke Ventilation System

The Merlin ventilator is designed for smoke ventilation that can either be wall or roof mounted. The Merlin is an operable Louvered Ventilation System.

Louvered Smoke Vents

  • Durable, tough and UV light resistant
  • Strength and impact resistant up to extreme temperatures
  • Easy to install pre-fabricated
  • Available heights ranging from 885mm to 3,485mm
  • Available widths ranging from 1,100mm to 3,405mm
  • A variety of finishes to maintain quality aesthetic appeal

The Swift smoke vent is an operable flap ventilation system that can be mounted to the roof or the wall. The roof unit is supplied as a two-part assembly; a base and a builder's stand-up.

Swift Flap Vents

The Swift ventilation units are designed and tested to meet the requirements laid down in current codes of practice. Fire tests have been carried out at a leading UK Fire Research Centre in accordance with BS 7346: Part 1 1990. Climatic performance testing, in accordance with CP3: chapter V: Part 2. The smoke ventilation units’ meet the snow load requirements as laid down in BS 6399: Part 3. 1990. Rain and wind penetration tests have been carried out using Zefyr’s own laboratory facilities which include an outside weathering rig, vacuum rig and aerodynamic test chamber designed by Loughborough University department of technology. All testing has been carried out in accordance with BS 7346: Part 1 1990. As optional extras the ventilator can have actuator systems (manual, pneumatic or electrical operation), bird guards, burglar guards, fusible link shields, closure flashings and windshields.
  • Very low profile to give maximum aesthetic appeal on the roof
  • Highest coefficient of discharge in its class
  • Units come factory-assembled
  • Fail-safe fusible link
  • Lengths ranging from 1,000mm to 2,000mm
  • Widths ranging from 1,000mm to 2,000mm
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