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Ventilation louvres
(93)
Ventilation louvres for air intake and exhaust on façades, plant rooms and rooftops. Fixed or operable blades in aluminium or steel. Weather and rain defence, airflow control and screening. Options include acoustic louvres, high free area profiles, sand trap units, doors, dampers, bird and insect mesh. For HVAC, industrial and commercial buildings.
Ventilation louvres - helping you find the best solution for your project.

Louvred ventilation panels
Panels are made to custom sizes from a range of fixed blade steel louvres and are generally framed with an angle section for fixing into the structural opening. Bird mesh or insect screen can be provided. Applications: housing for mechanical plant; ventilation grilles; compounds; architectural screens
DeltaWing steel ventilation louvres
DeltaWing is a pressure-locked louvre with a sharp contemporary appearance. The manufacturing process allows for a choice of spacings between the louvred blades, in increments of 11mm. A panel can therefore provide the amount of screening/free area to meet the particular requirements of each project. The 20x2mm vertical bars are generally spaced
CS rain defence louvres
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Rain defence louvres are used on buildings to allow the passage of air, whilst providing the area beyond them with effective protection from wind-driven rain penetration. CS best performing model - RS-5605 - combines maximum rain defence performance (Class A up to 3.5m/s) with excellent airflow performance (Class 1).Vertical and horizontal blade- PRODUCT
- Construction Specialties
MM Thermac operating louvres
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The MM Thermac is an energy-saving operating louvre suitable for vertical mounting into sidewall cladding, glazing and or brickwork. Each unit incorporates 30mm of polyurethane insulation within the double skin louvre blades as an energy conservation measure. Additional units are fitted with pile draught sealing strips which engage with the louvre- PRODUCT
- McKenzie Martin
A-2097 slimline ventilation louvres
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A-2097 shallow ventilation louvre at 53mm deep, with a 48mm horizontal blade pitch. Designed for space-limited applications where airflow, particularly mechanical extract is the priority. Can be specified in compact sizes from 100mm x 180mm, suited to curtain walling, residential buildings, and storefronts. Features and benefits slimline- PRODUCT
- Construction Specialties
CS RS-3900 Rain Defence Louvre
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82mm-deep high-performance louvre offering excellent protection against wind-driven rain penetration and very good airflow. Complex extruded blade design in vertical arrangement for maximum rain defence performance; channels in blades, jambs and mullions to collect and drain water from the louvred area; visible interlocking mullions to line up- PRODUCT
- Construction Specialties
CS PL-4080 - aluminium ventilation louvres
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Concealed behind an attractive perforated skin, Perform PL-4080 louvres offer good airflow and weather performance. Widely-spaced extruded blades for maximum airflow performance.Perforated aluminium face conceals the louvre while offering modern appearance. Screen can be supplied anodised or powder-coated. Louvre modules are powder-coated- PRODUCT
- Construction Specialties
Triple bank fabricated louvres
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The Triple Bank louvre system is designed to give increased rain defence capability over single and double bank louvre systems. It comprises a triple pass louvre blade with integral water traps and drains to offer permanent ventilation and is suitable for vertical mounting into sidewall cladding or brickwork. It can be installed singly- PRODUCT
- McKenzie Martin
Natural ventilators
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In any natural ventilation scheme involving conventional industrial buildings the optimum position, under normal circumstances, is to provide a system of air extraction through the highest point of a building - the roof apex. The Mackridge is a natural ventilator designed specifically for mounting along the ridgeline of a building. It can be- PRODUCT
- McKenzie Martin
Louvre ventilation panels
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Elefant Gratings offers louvre panels which are suitable for ventilation applications. The panels are manufactured in carbon, stainless or corten steel, or in aluminium, with fixed horizontal louvre blades. The carbon steel option can be grade S235JRG2 or to BS EN 10149-2. Carbon steel louvres can have the following finishes: hot dip galvanisedCS RS-4605 Rain Defence Louvres
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106mm-deep high-performance louvre offering protection against wind-driven rain penetration and good airflow. Suitable for installation in shallow openings or curtain walling: complex extruded blade design in vertical arrangement for maximum rain defence performance; visible mullions to line up with other façade elements; if preferred, invisible- PRODUCT
- Construction Specialties
CS RSH-5700AL Rain Defence Louvres
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High-performing louvres offering protection against wind-driven rain penetration, good airflow and a continuous line appearance on a façade: complex extruded blade design for maximum rain defence performance (A up to 3.5 m/s); multiple channels in blades and vertical components to collect and drain water from the louvred area; louvre blades are- PRODUCT
- Construction Specialties
RS-5215 double-bank architectural louvres with a continuous horizontal front blade design, 135mm deep, suited to large-scale façade projects requiring Class A rain defence. It provides Class 3 intake and Class 2 extract: double-bank louvre with horizontal front blades creating a continuous architectural line across the façade; high-performance- PRODUCT
- Construction Specialties
Weather louvres
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Series OJ standard louvres have been designed to provide weather protection to ventilation openings in buildings. They protect supply and exhaust duct openings against the ingress of rainwater. They are also be used for transfer applications where free flow ventilation is required to meet building regulations. OJ louvres are available in modular- PRODUCT
- Brooke Air
A-6177 Ventilation Louvres
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Modular ventilation louvre with excellent airflow performance, ideal for applications with permanent mechanical extract ventilation such as data centres. Wide blade pitch to maximise airflow performance; channels in blades and vertical sections help to collect and drain away rain water; visible mullions to line up with other façade elements- PRODUCT
- Construction Specialties
Modular ventilation louvres offering very good airflow and some rain defence, offered with a choice of visible or hidden mullions to create desired effect on the façade. Widely-spaced extruded blades for maximum airflow performance. Designed to offer some protection from wind-driven rain in lower face velocities. Delivered to site as pre-fabricated units- PRODUCT
- Construction Specialties
RS-5225 double-bank architectural louvres have an inverted 64mm pitch front blade, 135mm deep, designed for high-level façade installations where sightproofing from below is required: double-bank louvre with inverted horizontal front blades for continuous architectural lines while providing visual screening; high-performance vertical blade rear- PRODUCT
- Construction Specialties
Louvre doors
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All louvres available from Brooke Air can be manufactured into single or double doors, which can be integrated within louvre screens, panels or stand-alone units- PRODUCT
- Brooke Air
Marximair Thermac is an energy-saving operating louvre designed as a controllable ventilation system. It is suitable for vertical mounting into sidewall cladding, glazing and brickwork. Each unit incorporates polyurethane insulation within the double skin louvre blades as an energy conservation measure. Additionally, units are fitted with pile- PRODUCT
- McKenzie Martin
Bold Line ventilation louvres utilise two blade depths to allow creation of unique façade designs, customised with patterns, colours and shadow lines. Widely spaced extruded blades for maximum airflow performance. Choice of mullion styles, accent blade arrangements and colours for a truly bespoke façade- PRODUCT
- Construction Specialties
OJ/ADJ adjustable weather louvres
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Series OJ/ADJ standard louvres have been designed to provide weather protection to ventilation openings in buildings. They protect supply and exhaust duct openings against the ingress of rainwater. They are also be used for transfer applications where free flow ventilation is required to meet building regulations. OJ/ADJ louvres can be adjusted- PRODUCT
- Brooke Air
MM acoustic louvres
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Designed as an effective means of sound transmittance, whilst allowing weathered ventilation, the MM acoustic louvre is suitable for vertical mounting into sidewall cladding or brickwork and may be installed singly, in horizontal runs or in vertical tiers. Each louvre blade incorporates sound absorption material which is contained within a double- PRODUCT
- McKenzie Martin
Air inlet louvres for cooling towers
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2H air inlet louvres improve air flow into cooling towers and restrict the amount of sunlight, reducing algae growth. 2H air inlet louvres are made of PP and PVC providing high durability and a long service life. White colored louvres type DLPWE 065 are avaialble for regions with high insolation. Flame retardant executions are available: suitable- PRODUCT
- Brentwood Europe
CS Bold Line B-7505 Rain Defence Louvres
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Bold Line rain defence louvres utilising two blade depths to allow creation of unique façade designs, customised with patterns, colours and shadow lines: complex extruded blade design featuring multiple channels for effective rain defence performance (Class A up to 2.5 m/s); choice of mullion styles, accent blade arrangements and colours for a- PRODUCT
- Construction Specialties

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