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Louvred Vent | Glass
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Louvred Vent | Glass

A sleek glazed louvred vent providing compliant smoke and heat extraction with the added benefit of natural daylight. Ideal for both new build and refurbishment projects across residential, mixed-use, and commercial developments.

System type

Natural
Mechanical
Access

Customisations available

Sizes
Finish
Curb options

Lead times

Stock: N/A
Made to order: 7–8 weeks

Dedicated Sertus delivery

On time. Pre-tested. Installation-ready.
Get a quoteDownload Datasheet

At a Glance

Certified to BS EN 12101-2

Double-glazed glass blades

One-piece assembly

Integral lifting eyes

Opens to 90° in under 60 seconds

White internal finish (RAL 9016)

Key Features

  • Opens to 90° within 60 seconds for fast, compliant smoke extraction 

  • Double-glazed glass blades provide natural light and fire safety in one unit

  • High resistance to wind and weather for long-term performance 

  • Optional insulated base flange for thermal control and condensation reduction 

  • Integrated aerodynamic wind baffles and flashings as standard 

  • 24 V DC actuator with open/close end switches for safe operation 

  • One-piece construction with lifting eyes for fast roof-level installation 

  • Internal white (RAL 9016) finish with optional anthracite external (RAL 7016) 

Read more

Sizes & Materials

  • Wide size range - from approx. 746 × 500 mm to 3386 × 1100 mm 

  • Double-glazed glass blades for daylight and thermal performance 

  • Aluminium frame and support structure with polyester powder coating 

  • Standard finish: RAL 7016 external / RAL 9016 internal 

  • One-piece assembly with integral lifting eyes for safe handling 

View size guide

Certifications

  • Certified to BS EN 12101-2 for smoke and heat exhaust ventilation 

  • EN 1873 / ACRM Class B – impact resistance 1200 J 

  • BS 476 Part 3 – Fire rating AA tested for external fire exposure 

  • Air permeability: Class 8 (EN 1873) 

  • Weather tightness: Pass (EN 1873) 

  • Thermal performance: U-Value ≈ 1.28 W/m²·K (double-glazed blades) 

  • Environmental load testing: Wind load up to 1500 N; Snow load 250 N 

  • Resistance to heat: B300 (EN 12101-2 Annex G) 

  • Temperature range: –25 °C to +70 °C 

  • Reliability: Tested to 1000 cycles 

View tech specs

Description

The Sertus Roof Louvred Vent | Glass is a roof-mounted glazed smoke and heat vent that combines compliance, safety, and daylighting in a single solution. Opening to 90 degrees within 60 seconds, it rapidly extracts smoke and heat to keep escape routes clear while allowing natural light to illuminate interior spaces. Read more

Tech Specs

Opening Performance

Opens to 90° within 60 seconds

Blade Type

Double-glazed glass blades

Fire Rating

BS 476 Part 3 – AA (External Fire Exposure)

Certification

BS EN 12101-2 / EN 1873 compliant

Thermal Transmission

1.28 W/m²·K (double glazed blades) / 1.38 W/m²·K (insulated base adaptor) 

Air Permeability

Class 8 (EN 1873) 

Weather Tightness

Pass (EN 1873) 

Impact Resistance

1200 J (EN 1873 / ACRM Class B) 

Wind Load

Up to 1500 N (Annex F) 

Snow Load

250 N (Annex D-E) 

Resistance to Heat

B300 (EN 12101-2 Annex G) 

Ambient Temperature Range

-25 °C to +70 °C 

Voltage / Current

24 V DC / 1–2 A (depending on size)

Actuator

Electric actuator with open/close end switches

Force / Protection Degree

850 N / IP40

Reliability

1000 cycles 

Construction

One-piece aluminium assembly with integral lifting eyes

Finish

RAL 7016 external / RAL 9016 internal polyester powder coat 

Mounting Method

Roof-mounted assembly with integrated flashings and baffles 

Optional Features

Insulated base flange for thermal control; roof access function 

Size Guide

ModelRoof Opening Size (L x W – mm)Geometric Area (m²)
RLB-RG 74.50746 x 5000.37
RLB-RG 74.60746 x 6000.45
RLB-RG 74.70746 x 7000.52
RLB-RG 74.80746 x 8000.60
RLB-RG 74.90746 x 9000.67
RLB-RG 74.100746 x 10000.75
RLB-RG 74.110746 x 11000.82
RLB-RG 74.120746 x 12000.90
RLB-RG 74.130746 x 13000.97
RLB-RG 74.140746 x 14001.04
RLB-RG 74.150746 x 15001.12
RLB-RG 74.160746 x 16001.19
RLB-RG 74.170746 x 17001.27
RLB-RG 96.50966 x 5000.48
RLB-RG 96.60966 x 6000.58
RLB-RG 96.70966 x 7000.68
RLB-RG 96.80966 x 8000.77
RLB-RG 96.100966 x 10000.97
RLB-RG 96.110966 x 11001.06
RLB-RG 96.120966 x 12001.16
RLB-RG 96.130966 x 13001.26
RLB-RG 96.140966 x 14001.35
RLB-RG 96.150966 x 15001.45
RLB-RG 96.160966 x 16001.55
RLB-RG 96.170966 x 17001.64
RLB-RG 118.501186 x 5000.59
RLB-RG 118.601186 x 6000.71
RLB-RG 118.701186 x 7000.83
RLB-RG 118.801186 x 8000.95
RLB-RG 118.901186 x 9001.07
RLB-RG 118.1001186 x 10001.19
RLB-RG 118.1101186 x 11001.30
RLB-RG 118.1201186 x 12001.42
RLB-RG 118.1301186 x 13001.54
RLB-RG 118.1401186 x 14001.66
RLB-RG 118.1501186 x 15001.78
RLB-RG 118.1601186 x 16001.90
RLB-RG 118.1701186 x 17002.02
RLB-RG 140.501406 x 5000.70
RLB-RG 140.601406 x 6000.84
RLB-RG 140.701406 x 7000.98
RLB-RG 140.801406 x 8001.12
RLB-RG 140.901406 x 9001.27
RLB-RG 140.1001406 x 10001.41
RLB-RG 140.1101406 x 11001.55
RLB-RG 140.1201406 x 12001.69
RLB-RG 140.1301406 x 13001.83
RLB-RG 140.1401406 x 14001.97
RLB-RG 140.1501406 x 15002.11
RLB-RG 140.1601406 x 16002.25
RLB-RG 140.1701406 x 17002.39
RLB-RG 162.501626 x 5000.81
RLB-RG 162.601626 x 6000.98
RLB-RG 162.701626 x 7001.14
RLB-RG 162.801626 x 8001.30
RLB-RG 162.901626 x 9001.46
RLB-RG 162.1001626 x 10001.63
RLB-RG 162.1101626 x 11001.79
RLB-RG 162.1201626 x 12001.95
RLB-RG 162.1301626 x 13002.11
RLB-RG 162.1401626 x 14002.28
RLB-RG 162.1501626 x 15002.44
RLB-RG 162.1601626 x 16002.60
RLB-RG 162.1701626 x 17002.76
RLB-RG 184.501846 x 5000.92
RLB-RG 184.601846 x 6001.11
RLB-RG 184.701846 x 7001.29
RLB-RG 184.801846 x 8001.48
RLB-RG 184.901846 x 9001.66
RLB-RG 184.1001846 x 10001.85
RLB-RG 184.1101846 x 11002.03
RLB-RG 184.1201846 x 12002.20
RLB-RG 184.1301846 x 13002.40
RLB-RG 184.1401846 x 14002.58
RLB-RG 184.1501846 x 15002.77
RLB-RG 184.1601846 x 16002.95
RLB-RG 184.1701846 x 17003.14
RLB-RG 206.502066 x 5001.03
RLB-RG 206.602066 x 6001.24
RLB-RG 206.702066 x 7001.45
RLB-RG 206.802066 x 8001.65
RLB-RG 206.902066 x 9001.86
RLB-RG 206.1002066 x 10002.07
RLB-RG 206.1102066 x 11002.27
RLB-RG 206.1202066 x 12002.48
RLB-RG 206.1302066 x 13002.69
RLB-RG 206.1402066 x 14002.89
RLB-RG 206.1502066 x 15003.10
RLB-RG 206.1602066 x 16003.31
RLB-RG 206.1702066 x 17003.51
RLB-RG 228.502286 x 5001.14
RLB-RG 228.602286 x 6001.37
RLB-RG 228.702286 x 7001.60
RLB-RG 228.802286 x 8001.83
RLB-RG 228.902286 x 9002.06
RLB-RG 228.1002286 x 10002.29
RLB-RG 228.1102286 x 11002.51
RLB-RG 228.1202286 x 12002.74
RLB-RG 228.1302286 x 13002.97
RLB-RG 228.1402286 x 14003.20
RLB-RG 228.1502286 x 15003.43
RLB-RG 228.1602286 x 16003.66
RLB-RG 228.1702286 x 17003.89
RLB-RG 250.502506 x 5001.25
RLB-RG 250.602506 x 6001.50
RLB-RG 250.702506 x 7001.75
RLB-RG 250.802506 x 8002.00
RLB-RG 250.902506 x 9002.26
RLB-RG 250.1002506 x 10002.51
RLB-RG 250.1102506 x 11002.76
RLB-RG 250.1202506 x 12003.01
RLB-RG 250.1302506 x 13003.26
RLB-RG 250.1402506 x 14003.51
RLB-RG 250.1502506 x 15003.76
RLB-RG 250.1602506 x 16004.01
RLB-RG 250.1702506 x 17004.26
RLB-RG 272.502726 x 5001.36
RLB-RG 272.602726 x 6001.64
RLB-RG 272.702726 x 7001.91
RLB-RG 272.802726 x 8002.18
RLB-RG 272.902726 x 9002.45
RLB-RG 272.1002726 x 10002.73
RLB-RG 272.1102726 x 11003.00
RLB-RG 294.502946 x 5001.47
RLB-RG 294.602946 x 6001.77
RLB-RG 294.702946 x 7002.06
RLB-RG 294.802946 x 8002.36
RLB-RG 294.902946 x 9002.65
RLB-RG 294.1002946 x 10002.95
RLB-RG 294.1102946 x 11003.24
RLB-RG 316.503166 x 5001.58
RLB-RG 316.603166 x 6001.90
RLB-RG 316.703166 x 7002.22
RLB-RG 316.803166 x 8002.53
RLB-RG 316.903166 x 9002.85
RLB-RG 316.1003166 x 10003.17
RLB-RG 316.1103166 x 11003.48
RLB-RG 338.503386 x 5001.69
RLB-RG 338.603386 x 6002.03
RLB-RG 338.703386 x 7002.37
RLB-RG 338.803386 x 8002.71
RLB-RG 338.903386 x 9003.05
RLB-RG 338.1003386 x 10003.39
RLB-RG 338.1103386 x 11003.72
Check Lead Times
Use our handy PDF guide below to check lead time information for the specification you need.
View Lead Times GuideGet a Quote

Downloads

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

Download Pack

Technical Data Sheet

Detailed technical information in PDF format
Download PDF

Declaration of Performance (DoP)

The Declaration of Performance is a key part of the Construction Products Regulation. It provides information on the performance of a product.
Download PDF

Installation Guide

Detailed installation instructions for the RLB-RG
Download PDF

Operation & Maintenance Manual

How to use and care for your Sertus Roof Louvre Blade - Residential Glass
Download PDF

Warranty

Product warranty in PDF format
Download PDF

BIM Model

Version: Revit 2015
Download BIM

FAQ

Choose a category
Can I install a ladder on your smoke vent models?

We do not recommend installing permanent ladders on our RSL-R, RLB-R, or other smoke vent models, as they may impact the aerodynamic and free areas, potentially affecting performance.

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Find the right system for your project

We don’t design or install full systems – we manufacture the certified products that form them. Choose a system type below to understand how it functions, where it is used, and which Sertus products are required for compliance.
Natural

Uses natural buoyancy of smoke and external airflow to extract heat and smoke from escape routes such as stairwells and corridors.

Learn more
Mechanical

Powered extraction using fan sets and control dampers to rapidly remove smoke from larger or complex buildings.

Learn more
Pressurisation

Maintains a positive air pressure in protected routes, preventing smoke ingress and ensuring clear escape paths.

Learn more
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