News: Sertus wins Manufacturing Impact Award at MAKE UK South Region Awards Read now
Products
Louvred Vent | Solid
OverviewTech SpecsSize GuideDownloadsFAQGet a Quote

Louvred Vent | Solid

A high-performance roof-mounted louvre designed for compliant smoke and heat extraction. The Roof Louvre Vent | Solid combines strength, reliability, and weather resistance - ensuring safe, efficient smoke control in all building types.

System type

Natural
Mechanical
Access

Customisations available

Sizes
Blade type
Curb options

Lead times

Stock: 1–5 working days
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

Opens to 90° in under 60 seconds

One-piece assembly

Solid aluminium or polycarbonate blade options

Integral lifting eyes

Part L compliant

Key Features

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

  • A1-rated Rockwool-insulated aluminium blades for fire safety and durability 

  • High resistance to wind, rain and harsh environments 

  • Integrated flashings and aerodynamic wind baffles supplied as standard 

  • Energy-efficient 24 V DC actuator with open/close end switches 

  • Modular linking option for large or custom configurations 

  • Optional roof access use and removable solid access panels 

  • Integral lifting eyes for safe roof-level handling  

Read more

Sizes & Materials

  • Wide size range — from approx. 966 × 1500 mm to 3826 × 2400 mm 

  • Blade types: solid Rockwool-insulated aluminium (A1) or polycarbonate multiwall 

  • Optional insulated base flange for condensation and thermal control 

  • One-piece aluminium construction with powder-coated finish (white internal as standard) 

  • Integral lifting eyes and factory-fitted fixings for fast installation 

View size guide

Certifications

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

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

  • Fire rating: A1 (Rockwool-insulated construction) 

  • Air permeability: Class 8 (EN 1873) 

  • Weather tightness: Pass (EN 1873)

  • Thermal compliance: Part L – insulated units achieve U-Value < 3.0 W/m²·K 

  • Environmental load testing: Wind load up to 1500 N (Annex F); Snow load 250 N (Annex D-E) 

  • Resistance to heat: B300 (Annex G) 

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

  • Reliability: Tested to 1000 cycles 

View tech specs

Description

The Sertus Roof Louvred Vent | Solid is a high-performance roof-mounted smoke vent designed to extract smoke and hot gases in the event of a fire, helping to maintain clear escape routes and safe conditions within the building.  Read more

Tech Specs

Opening Performance

Opens to 90° within 60 seconds 

Fire Rating

A1 (Rockwool-insulated aluminium blades)

Certification

BS EN 12101-2 / EN 1873 compliant 

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 (Annex G) 

Ambient Temperature Range

-25 °C to +70 °C 

Thermal Compliance

Part L – insulated units < 3.0 W/m²·K 

Voltage / Power Input

24 V DC (1 A or 2 A depending on size) 

Actuator

Electric with open/close end switches 

Force / Protection Degree

900 N / IP40 

Reliability

1000 cycles 

Blade Options

Solid Rockwool-insulated aluminium or polycarbonate multiwall

Construction

One-piece aluminium assembly with integral lifting eyes 

Finish

White internal powder coat, external RAL colour optional 

Mounting Method

Roof-mounted one-piece assembly

Optional Features

Insulated base flange, roof access panel, modular linking

Size Guide

ModelRoof Opening Size (L x W - mm)Geometric Area (m²)
RLB-R 74.50746 x 5000.37
RLB-R 74.60746 x 6000.45
RLB-R 74.70746 x 7000.52
RLB-R 74.80746 x 8000.60
RLB-R 74.90746 x 9000.67
RLB-R 74.100746 x 10000.75
RLB-R 74.110746 x 11000.82
RLB-R 74.120746 x 12000.90
RLB-R 74.130746 x 13000.97
RLB-R 74.150746 x 14001.04
RLB-R 74.160746 x 16001.19
RLB-R 74.170746 x 17001.27
RLB-R 74.180746 x 18001.34
RLB-R 74.190746 x 19001.42
RLB-R 74.200746 x 20001.49
RLB-R 74.210746 x 21001.57
RLB-R 74.220746 x 22001.64
RLB-R 74.230746 x 23001.72
RLB-R 74.240746 x 24001.79
RLB-R 96.50966 x 5000.48
RLB-R 96.60966 x 6000.58
RLB-R 96.70966 x 7000.68
RLB-R 96.80966 x 8000.77
RLB-R 96.90966 x 9000.87
RLB-R 96.100966 x 10000.97
RLB-R 96.110966 x 11001.06
RLB-R 96.120966 x 12001.16
RLB-R 96.130966 x 13001.26
RLB-R 96.140966 x 14001.35
RLB-R 96.150966 x 15001.45
RLB-R 96.160966 x 16001.55
RLB-R 96.170966 x 17001.64
RLB-R 96.180966 x 18001.74
RLB-R 96.190966 x 19001.84
RLB-R 96.200966 x 20001.93
RLB-R 96.210966 x 21002.03
RLB-R 96.220966 x 22002.13
RLB-R 96.230966 x 23002.22
RLB-R 96.240966 x 24002.32
RLB-R 118.501186 x 5000.59
RLB-R 118.601186 x 6000.71
RLB-R 118.701186 x 7000.83
RLB-R 118.801186 x 8000.95
RLB-R 118.901186 x 9001.07
RLB-R 118.1001186 x 10001.19
RLB-R 118.1101186 x 11001.30
RLB-R 118.1201186 x 12001.42
RLB-R 118.1301186 x 13001.54
RLB-R 118.1401186 x 14001.66
RLB-R 118.1501186 x 15001.78
RLB-R 118.1601186 x 16001.90
RLB-R 118.1701186 x 17002.02
RLB-R 118.1801186 x 18002.13
RLB-R 118.1901186 x 19002.25
RLB-R 118.2001186 x 20002.37
RLB-R 118.2101186 x 21002.49
RLB-R 118.2201186 x 22002.61
RLB-R 118.2301186 x 23002.73
RLB-R 118.2401186 x 24002.85
RLB-R 140.501406 x 5000.70
RLB-R 140.601406 x 6000.84
RLB-R 140.701406 x 7000.98
RLB-R 140.801406 x 8001.12
RLB-R 140.901406 x 9001.27
RLB-R 140.1001406 x 10001.41
RLB-R 140.1101406 x 11001.55
RLB-R 140.1201406 x 12001.69
RLB-R 140.1301406 x 13001.83
RLB-R 140.1401406 x 14001.97
RLB-R 140.1501406 x 15002.11
RLB-R 140.1601406 x 16002.25
RLB-R 140.1701406 x 17002.39
RLB-R 140.1801406 x 18002.53
RLB-R 140.1901406 x 19002.67
RLB-R 140.2001406 x 20002.81
RLB-R 140.2101406 x 21002.95
RLB-R 140.2201406 x 22003.09
RLB-R 140.2301406 x 23003.23
RLB-R 140.2401406 x 24003.37
RLB-R 162.501626 x 5000.81
RLB-R 162.601626 x 6000.98
RLB-R 162.701626 x 7001.14
RLB-R 162.801626 x 8001.30
RLB-R 162.901626 x 9001.46
RLB-R 162.1001626 x 10001.63
RLB-R 162.1101626 x 11001.79
RLB-R 162.1201626 x 12001.95
RLB-R 162.1301626 x 13002.11
RLB-R 162.1401626 x 14002.28
RLB-R 162.1501626 x 15002.44
RLB-R 162.1601626 x 16002.60
RLB-R 162.1701626 x 17002.76
RLB-R 162.1801626 x 18002.93
RLB-R 162.1901626 x 19003.09
RLB-R 162.2001626 x 20003.25
RLB-R 162.2101626 x 21003.41
RLB-R 162.2201626 x 22003.58
RLB-R 162.2301626 x 23003.74
RLB-R 162.2401626 x 24003.90
RLB-R 184.501846 x 5000.92
RLB-R 184.601846 x 6001.11
RLB-R 184.701846 x 7001.29
RLB-R 184.801846 x 8001.48
RLB-R 184.901846 x 9001.66
RLB-R 184.1001846 x 10001.85
RLB-R 184.1101846 x 11002.03
RLB-R 184.1201846 x 12002.22
RLB-R 184.1301846 x 13002.40
RLB-R 184.1401846 x 14002.58
RLB-R 184.1501846 x 15002.77
RLB-R 184.1601846 x 16002.95
RLB-R 184.1701846 x 17003.14
RLB-R 184.1801846 x 18003.32
RLB-R 184.1901846 x 19003.51
RLB-R 184.2001846 x 20003.69
RLB-R 184.2101846 x 21003.88
RLB-R 184.2201846 x 22004.06
RLB-R 184.2301846 x 23004.25
RLB-R 184.2401846 x 24004.43
RLB-R 206.502066 x 5001.03
RLB-R 206.602066 x 6001.24
RLB-R 206.702066 x 7001.45
RLB-R 206.802066 x 8001.65
RLB-R 206.902066 x 9001.86
RLB-R 206.1002066 x 10002.07
RLB-R 206.1102066 x 11002.27
RLB-R 206.1202066 x 12002.48
RLB-R 206.1302066 x 13002.69
RLB-R 206.1402066 x 14002.89
RLB-R 206.1502066 x 15003.10
RLB-R 206.1602066 x 16003.31
RLB-R 206.1702066 x 17003.51
RLB-R 206.1802066 x 18003.72
RLB-R 206.1902066 x 19003.93
RLB-R 206.2002066 x 20004.13
RLB-R 206.2102066 x 21004.34
RLB-R 206.2202066 x 22004.55
RLB-R 206.2302066 x 23004.75
RLB-R 206.2402066 x 24004.96
RLB-R 228.502286 x 5001.14
RLB-R 228.602286 x 6001.37
RLB-R 228.702286 x 7001.60
RLB-R 228.802286 x 8001.83
RLB-R 228.902286 x 9002.06
RLB-R 228.1002286 x 10002.29
RLB-R 228.1102286 x 11002.51
RLB-R 228.1202286 x 12002.74
RLB-R 228.1302286 x 13002.97
RLB-R 228.1402286 x 14003.20
RLB-R 228.1502286 x 15003.43
RLB-R 228.1602286 x 16003.66
RLB-R 228.1702286 x 17003.89
RLB-R 228.1802286 x 18004.11
RLB-R 228.1902286 x 19004.34
RLB-R 228.2002286 x 20004.57
RLB-R 228.2102286 x 21004.80
RLB-R 228.2202286 x 22005.03
RLB-R 228.2302286 x 23005.26
RLB-R 228.2402286 x 24005.49
RLB-R 250.502506 x 5001.25
RLB-R 250.602506 x 6001.50
RLB-R 250.702506 x 7001.75
RLB-R 250.802506 x 8002.00
RLB-R 250.902506 x 9002.26
RLB-R 250.1002506 x 10002.51
RLB-R 250.1102506 x 11002.76
RLB-R 250.1202506 x 12003.01
RLB-R 250.1302506 x 13003.26
RLB-R 250.1402506 x 14003.51
RLB-R 250.1502506 x 15003.76
RLB-R 250.1602506 x 16004.01
RLB-R 250.1702506 x 17004.26
RLB-R 250.1802506 x 18004.51
RLB-R 250.1902506 x 19004.76
RLB-R 250.2002506 x 20005.01
RLB-R 250.2102506 x 21005.26
RLB-R 250.2202506 x 22005.51
RLB-R 250.2302506 x 23005.76
RLB-R 250.2402506 x 24006.01
RLB-R 272.502726 x 5001.36
RLB-R 272.602726 x 6001.64
RLB-R 272.702726 x 7001.91
RLB-R 272.802726 x 8002.18
RLB-R 272.902726 x 9002.45
RLB-R 272.1002726 x 10002.73
RLB-R 272.1102726 x 11003.00
RLB-R 272.1202726 x 12003.27
RLB-R 272.1302726 x 13003.54
RLB-R 272.1402726 x 14003.82
RLB-R 272.1502726 x 15004.09
RLB-R 272.1602726 x 16004.36
RLB-R 272.1702726 x 17004.63
RLB-R 272.1802726 x 18004.91
RLB-R 272.1902726 x 19005.18
RLB-R 272.2002726 x 20005.45
RLB-R 272.2102726 x 21005.72
RLB-R 272.2202726 x 22006.00
RLB-R 272.2302726 x 23006.27
RLB-R 272.2402726 x 24006.54
RLB-R 294.502946 x 5001.47
RLB-R 294.602946 x 6001.77
RLB-R 294.702946 x 7002.06
RLB-R 294.802946 x 8002.36
RLB-R 294.902946 x 9002.65
RLB-R 294.1002946 x 10002.95
RLB-R 294.1102946 x 11003.24
RLB-R 294.1202946 x 12003.54
RLB-R 294.1302946 x 13003.83
RLB-R 294.1402946 x 14004.12
RLB-R 294.1502946 x 15004.42
RLB-R 294.1602946 x 16004.71
RLB-R 294.1702946 x 17005.01
RLB-R 294.1802946 x 18005.30
RLB-R 294.1902946 x 19005.60
RLB-R 294.2002946 x 20005.89
RLB-R 294.2102946 x 21006.19
RLB-R 294.2202946 x 22006.48
RLB-R 294.2302946 x 23006.78
RLB-R 294.2402946 x 24007.07
RLB-R 316.503166 x 5001.58
RLB-R 316.603166 x 6001.90
RLB-R 316.703166 x 7002.22
RLB-R 316.803166 x 8002.53
RLB-R 316.903166 x 9002.85
RLB-R 316.1003166 x 10003.17
RLB-R 316.1103166 x 11003.48
RLB-R 316.1203166 x 12003.80
RLB-R 316.1303166 x 13004.12
RLB-R 316.1403166 x 14004.43
RLB-R 316.1503166 x 15004.75
RLB-R 316.1603166 x 16005.07
RLB-R 316.1703166 x 17005.38
RLB-R 316.1803166 x 18005.70
RLB-R 316.1903166 x 19006.02
RLB-R 316.2003166 x 20006.33
RLB-R 316.2103166 x 21006.65
RLB-R 316.2203166 x 22006.97
RLB-R 316.2303166 x 23007.28
RLB-R 316.2403166 x 24007.60
RLB-R 338.503386 x 5001.69
RLB-R 338.603386 x 6002.03
RLB-R 338.703386 x 7002.37
RLB-R 338.803386 x 8002.71
RLB-R 338.903386 x 9003.05
RLB-R 338.1003386 x 10003.39
RLB-R 338.1103386 x 11003.72
RLB-R 338.1203386 x 12004.06
RLB-R 338.1303386 x 13004.40
RLB-R 338.1403386 x 14004.74
RLB-R 338.1503386 x 15005.08
RLB-R 338.1603386 x 16005.42
RLB-R 338.1703386 x 17005.76
RLB-R 338.1803386 x 18006.09
RLB-R 338.1903386 x 19006.43
RLB-R 338.2003386 x 20006.77
RLB-R 338.2103386 x 21007.11
RLB-R 338.2203386 x 22007.45
RLB-R 338.2303386 x 23007.79
RLB-R 338.2403386 x 24008.13
RLB-R 360.503606 x 5001.80
RLB-R 360.603606 x 6002.16
RLB-R 360.703606 x 7002.52
RLB-R 360.803606 x 8002.88
RLB-R 360.903606 x 9003.25
RLB-R 360.1003606 x 10003.61
RLB-R 360.1103606 x 11003.97
RLB-R 360.1203606 x 12004.33
RLB-R 360.1303606 x 13004.69
RLB-R 360.1403606 x 14005.05
RLB-R 360.1503606 x 15005.41
RLB-R 360.1603606 x 16005.77
RLB-R 360.1703606 x 17006.13
RLB-R 360.1803606 x 18006.49
RLB-R 360.1903606 x 19006.85
RLB-R 360.2003606 x 20007.21
RLB-R 360.2103606 x 21007.57
RLB-R 360.2203606 x 22007.93
RLB-R 360.2303606 x 23008.29
RLB-R 360.2403606 x 24008.65
RLB-R 382.503826 x 5001.91
RLB-R 382.603826 x 6002.30
RLB-R 382.703826 x 7002.68
RLB-R 382.803826 x 8003.06
RLB-R 382.903826 x 9003.44
RLB-R 382.1003826 x 10003.83
RLB-R 382.1103826 x 11004.21
RLB-R 382.1203826 x 12004.59
RLB-R 382.1303826 x 13004.97
RLB-R 382.1403826 x 14005.36
RLB-R 382.1503826 x 15005.74
RLB-R 382.1603826 x 16006.12
RLB-R 382.1703826 x 17006.50
RLB-R 382.1803826 x 18006.89
RLB-R 382.1903826 x 19007.27
RLB-R 382.2003826 x 20007.65
RLB-R 382.2103826 x 21008.03
RLB-R 382.2203826 x 22008.42
RLB-R 382.2303826 x 23008.80
RLB-R 382.2403826 x 24009.18
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

  • Technical Data Sheet (U-Value Performance)

  • Declaration of Performance

  • Installation Guide

  • Operation & Maintenance Manual

  • Warranty

  • BIM Model

Download Pack

Technical Data Sheet

Detailed technical information in PDF format
Download PDF

Technical Data Sheet – U-Value Performance

Detailed U-Value 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-R
Download PDF

Operation & Maintenance Manual

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

Warranty

Product warranty in PDF format
Download PDF

BIM Model

Version: Revit 2022
Download BIM

FAQ

Choose a category
Is the actuator power-close spring-open?

No, our units are equipped with power-open and power-close actuators.

What are the minimum collar dimensions for the RLB-R?

The minimum collar dimensions are 50mm on each side. 

Can the flange or collar be removed?

No, the units have a small lip designed for the flange/collar to fit onto the upstands, making removal not possible. 

Is intumescent painting supplied with the RLB-R?

Currently, intumescent painting is not provided. 

Can the RLB-R be manufactured with burglar bars?

We do not manufacture burglar bars for the RLB-R, as they cannot be fitted through the blades. 

Can the RLB-R be installed inside a building?

Yes, the RLB-R can be installed indoors as part of a façade setup. 

Can the RLB-R be installed in a curtain walling system?

While it is possible to install the RLB-R in a façade setup (FLB-R), it is not advisable to install it in a curtain walling system due to aesthetic considerations. However, it can include an additional cill detail. 

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.

Is there access from above for motor maintenance by removing the blades externally?

Yes, it is currently possible to remove the glass and polycarbonate glazing from the outside by taking off one wind baffle and unclipping the glazing bead. We are considering solutions for the solid cover. 

What components were tested to produce the aerodynamic free areas?

The RLB-R was tested using wind baffles/deflectors and lifting eyes to establish the aerodynamic free areas provided. 

Does the RLB-R comply with Approved Document L2 Table 4.1, providing a U-Value <3.0W/(m²·K)?

Our insulated base units meet the U-Value requirement. However, our uninsulated base units do not comply with projects needing to adhere to Approved Document L2 Table 4.1. 

Related Case Studies

Explore real projects using our smoke ventilation products across both residential and commercial sectors.

View all case studies

LIV Sheffield

Custom smoke ventilation products delivered seamlessly for a high-rise student accommodation, ensuring both safety and comfort for future residents.

Sector

Student Accommodation

System Type

Mechanical

Client

Advanced Integrated Security Systems

Products

Pod™ Original, RSL-R, SLD

View Case Study

Merseyside Fire & Rescue Training Academy

Mechanical and natural smoke ventilation products to support realistic fire training scenarios at a Training Academy in the UK.

Sector

Public

System Type

Mechanical, Natural

Client

Maclec

Products

Pod™ Mini, RSL-R, SLD

View Case Study

Station Quarter

Fully mechanical smoke ventilation products for compliant, efficient operation across a new-build residential development in Northamptonshire.

Sector

Low-Rise Residential

System Type

Mechanical

Client

Gallico Systems

Products

Pod™ Mini, RSL-R, SLD

View Case Study

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
Explore more products in our range
Louvred Vent | Glass
View
Single Leaf Vent | Poly
View
Single Leaf Vent | Glass
View
Commercial Access Hatch
View
Residential Access Hatch
View
Concertina Ladder
View
Get a Quote
Our friendly and knowledgeable team are ready to help
Get a QuoteEmail us
Products
Roof Vents
Roof Extract
Shaft
Roof Access
Systems
Natural
Mechanical
Pressurisation
Resources
CPD & Training
Videos
Case Studies
News & Insights
Support
Contact Us
Get a Quote
Get in Touch
Book a CPD
Chat With Us
Downloads
Data Sheets
DoPs
Installation Guides
BIM Models
User Manuals
CAD Models
Warranties
White Papers
Why Sertus
Our Advantage
About Us
Our Team
Accreditations
01483 269999
Europa House, Alfold Road, Cranleigh, Surrey, GU6 8NQ
Terms & ConditionsWarrantyPrivacy PolicyCookiesCSR
© 2025 SERTUS