Smoke vents
Declaration of Performance with CE marking 1488-CPR-0042/W in accordance with EN 12101-2:2003
Smoke vents are a vital component of gravity smoke extraction, used to exhaust harmful substances generated during a fire.
Available variants:
- •Single-leaf
- •Double-leaf
Role and Application
Smoke vents (smoke flaps) are a key component of gravity smoke extraction systems, serving to safely remove smoke and toxins during a fire. Thanks to transparent infills, they can additionally function as roof skylights. They are designed for flat roofs (with a pitch up to 15°) in facilities such as industrial halls, warehouses, shopping centers, or office buildings. They are available in single-leaf or double-leaf versions.
Curb construction
The device base consists of four galvanized steel segments with a minimum thickness of 1.25 mm. Its height is selected according to the project design (ranging from 30 to 100 cm), with 35 cm, 50 cm, and 75 cm being the most commonly used variants. The construction requires stable support along the entire perimeter of the roof opening.
Types of geometry
Depending on design requirements, three upstand types are available: straight (P models), straight-inclined (PS2 models), and inclined (S models). Selected models can be adapted to also function as roof access hatches.
Infill variants
The vent cover can be customized for insulation and aesthetics. Options include UV-filtered multiwall polycarbonate (various thicknesses), fire-resistant NRO panels with BROOF(t1) classification, or acrylic domes. The material can be fully transparent or opal (milky).
Drive systems
The vent opens in two ways: electrically (24V actuators with various current ratings) or pneumatically (actuators using CO2 cartridges). In double-leaf models, each leaf has its own independent drive mechanism.
Performance enhancement accessories
Smoke extraction efficiency can be increased by installing additional galvanized steel components. These include wind deflectors and inlet nozzles, which increase the so-called aerodynamic free area of the vent, improving air and smoke flow.
Reliability and standards
Products are CE certified and comply with EN 12101-2. They guarantee reliability for 1,000 opening cycles (Re 1000 class) and a fast response time—reaching full opening in under 60 seconds, even under high snow loads (up to 900 N/m²).
Best solution for:
Large-scale warehouses
Where rapid smoke extraction allows for the protection of stored goods and the safe evacuation of employees.
Manufacturing plants and factories
Especially where technological processes involve an increased risk of fire.
Shopping centers and malls
In high-occupancy areas where smoke vents are a legal requirement for emergency exit smoke extraction systems.
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