Single Leaf Vent | Polycarbonate
System type
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Customisations available
Lead times
Dedicated Sertus delivery
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At a Glance
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Certified to BS EN 12101-2
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Supplied with fixings for faster install
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Approved Document B & Part L compliant
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Wide range of sizes
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Opens to 160° in under 60 seconds
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Optional roof access feature
Key Features
Opens to 160° within 60 seconds for fast smoke and heat extraction
Multiwall polycarbonate lid (double or triple skin) for natural daylight
Natural smoke ventilation, mechanical ventilation and roof access capability
Pre-wired electric actuator supplied for simple installation
Integrated flashings (collar option) for weatherproofing
Multiple mounting and curb configurations available
Sound reduction: 20–23 dB
Modular linking option for larger openings
Optional wind baffles, fall arrest grid and end switches
Durable aluminium or PVC base frame depending on specification
Sizes & Materials
Square or rectangular - standard and bespoke sizes
Standard roof opening range:
Min: 900 × 900 mm
Max: up to 1600 × 2500 mm (aluminium) / 1600 × 2300 mm (PVC)
Multiwall polycarbonate lid (double or triple skin)
Base frame options:
Aluminium collar with Rockwool insulation
PVC base construction
Internal finish:
Aluminium: Powder-coated white aluminium
PVC: White PVC
External finish:
Powder-coated or mill finish aluminium (RAL colour customisable with collar)
Certifications
Certified to BS EN 12101-2
Compliant with BS EN 1873
Approved Document B & Part L compliant
Impact resistance: SB 1200 J
Air permeability:
Aluminium: Class 3 (BS 6375-1)
PVC: Class 2 (BS EN 1873)
Weather tightness: Pass
Wind load resistance: up to 1500 N
Snow load:
Aluminium: up to 2250 N
PVC: SL350–1000 N
Heat resistance: B300
Low temperature operation: –15 °C
Reliability: 10,000 + 1,000 cycles tested
Dual purpose ventilation
Description
Tech Specs
Multiwall polycarbonate (double or triple skin)
Aluminium (Rockwool insulated) or PVC
BS EN 12101-2 / EN 1873 compliant
SB 1200 J
Class 3 (Aluminium)
Class 2 (PVC)
Pass
Up to 1500 N
Up to 2250 N (Aluminium)
SL350–1000 N (PVC)
B300
–15 °C
Range: 0.99–1.09 W/(m²·K) (Aluminium)
1.37–2.68 W/(m²·K) (PVC)
Range: 0.50–2.48 m² (Aluminium)
0.20–1.50 m² (PVC)
Range: 0.70–3.90 m² (Aluminium)
0.39–2.89 m² (PVC)
Pre-wired 24 V DC
IP45
10,000 + 1,000 cycles
Roof-mounted assembly
Fully assembled, crane-lift ready
Insulated base flange (Aluminium), modular linking, wind baffles, mesh, end switches
Downloads
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Complete Documentation Pack
Download a zip file containing all documents for this product.
Technical Data Sheet
Declaration of Performance
Installation Guide
Operation & Maintenance Manual
Warranty
BIM Model
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Videos
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What's the best AOV on the market? You decide...
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Why this AOV is PERFECT for your project!
Yes. The Roof Single Leaf Vent | Polycarbonate is available with either a Rockwool-insulated aluminium collar (RSL) or a PVC base construction (RSL-R). The RSL offers enhanced thermal performance and A1-rated construction, while the RSL-R provides a cost-effective alternative for a wide range of smoke ventilation applications.
Yes. A bespoke wind deflector can be specified to increase the aerodynamic free area where required.
Yes. Sertus polycarbonate lids are manufactured from virtually unbreakable polycarbonate and are tested in accordance with the ACR(M) Red Book and BS EN 1873. Whilst classified as non-fragile when tested, they are not “man-safe” and should not be deliberately walked on.
Yes. An opening limiter can be fitted where required. However, restricting the opening below 140° may affect compliance with BS EN 12101-2.
Yes. All polycarbonate lids feature a double-skin construction as standard, helping deliver improved thermal performance.
Yes. The actuator can be specified on either the left- or right-hand side to suit the project requirements.
The top of the roof vent upstand should be a minimum of 300mm above the finished roof surface.
Yes. The Roof Single Leaf Vent can be installed on roof pitches of up to 20°.
We do not recommend installing permanent ladders adjacent to roof vents, as they may reduce the aerodynamic free area and affect smoke ventilation performance.
Where roof vents are installed in areas with regular roof access or foot traffic, appropriate edge protection or fall protection measures should be considered in accordance with the project's safety strategy.
The Roof Single Leaf Vent is designed to be low maintenance. Routine maintenance typically consists of periodic inspections and cleaning using warm soapy water.
Routine servicing of the smoke control system, including control panels and call points, is typically carried out from within the building. Some maintenance tasks on the roof vent itself may require roof access.
Yes. If the actuator requires replacement, it can typically be accessed and replaced from the roof without entering the building.
Yes. Sertus Roof Single Leaf Vents are CE marked in accordance with BS EN 12101-2, the harmonised European standard for natural smoke and heat exhaust ventilators.
Yes. The Roof Single Leaf Vent is classified BRoof (T4) for external fire performance.
No. Natural smoke vents are designed to extract smoke and heat from a building and are tested to BS EN 12101-2. Unlike smoke control dampers, they are not intended to provide compartmentation and therefore do not require a fire resistance classification.
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Find the right system for your project
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