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CS™ Architectural Louvres

cs louvres westgate house3
screening louvres (2)
Louvres_wtc
Louvres_screening_2

Architectural louvres have a diverse range of uses for both engineers and building designers.

Required on most buildings to allow airflow in and out of the building, architectural louvres often have to provide protection from rain ingress.

Louvres can also be used to provide aesthetic and economic screening for unsightly equipment or building façades.

CS have been manufacturing and selling louvres globally for over 60 years.

Why CS Architectural Louvres

 
  • industry leading performance characteristics
  • unparalleled global experience
  • worldwide technical support
  • first class innovation & designs
  • most spatially efficient models on the market
  • up to 100% rain defence with some models
  • robust blades up to 3x thicker than rolled blades
  • up to date, relevant test information

Extensive Range Featuring

Rain Defence

Airflow

Screening

Acoustic

Calculate Your Louvre Pressure Drop

Louvre pressure drop is one of the key parameters of establishing the louvre requirements for your project as it’s based on the needs of the building and its ventilation system, rather than “free area” which doesn’t really mean anything.

Pressure drop is defined as the pressure differential from one side of a louvre to the opposite side, often expressed in Pascals (Pa). Louvre pressure drop occurs when frictional forces, caused by the resistance to flow, act on air moving through a louvre.

Increased louvre pressure drop can prevent equipment inside the ventilated area drawing sufficient air through the louvre, resulting in overheating, as the equipment has to work harder to draw the air through.

Send

Guidance

Air Density (ρ)
is generally 1.225 kg/m³ (at sea level)

Volumetric Flow (qv)
is supplied by the ventilation engineer and relates to the amount of air required through the system

Core Area (A)
The minimum height times the minimum width of the front opening in a louvre assembly with the louvre blades removed.

Discharge Loss Coefficient (CD)
See chosen louvre model testing information.

Calculate the Amount of Louvre You Need

Send

Discharge Loss Guidance

Louvre ModelPenetration ClassAirflow ClassDischarge Loss Coefficient
RSH-5700A up to 3.0m/s30.289
RSV-5700A up to 3.5m/s30.297
RS-5605A up to 3.5m/s10.466
A-3105D up to 3.5m/s20.391
A-4080C up to 1.0m/s20.38
A-4085C up to 1.0m/s20.38

Compare Louvre Models

Use the table below to compare our Rain Defence & Ventilation Louvre models to find the right model for your project.

ModelTypeBlade OrientationAppearanceLouvre DepthBlade PitchPenetration ClassAirflow ClassAirflow Coefficient
RSH-5700Rain DefenceHorizontalModular
[Visible Mullions]
129mm51mmA [up to 3.0m/s]30.289
RSV-5700Rain DefenceVerticalModular
[Visible Mullions]
129mm51mmA [up to 3.5m/s]30.297
RS-5605Rain DefenceVerticalModular
[Visible Mullions]
131mm25mmA [up to 3.5m/s]10.466
A-3105VentilationHorizontalContinuous
[Hidden Mullions]
127mm75mmD [up to 3.5m/s]20.391
A-4080VentilationHorizontalModular
[Visible Mullions]
102mm100mmC [up to 1.0m/s]20.38
A-4085VentilationHorizontalContinuous
[Hidden Mullions]
153mm100mmC [up to 1.0m/s]20.38

Calculatrice de perte de charge d’une grille de ventilation

La perte de charge est un paramètre essentiel dans la spécification d’une grille pour la ventilation d’un ouvrage. Ce résultat se base sur l’analyse des besoins en ventilation du bâtiment plutôt que la surface libre offerte, qui n’a pas d’intérêt aéraulique pour la structure.

La perte de charge résulte de la différence de pression constatée de part et d’autre de la grille. Exprimée en Pascal (Pa), la perte de charge dite linéaire est due aux frottements du flux d’air lors de son passage au travers des lames des grilles.

Si la perte est trop importante le flux d’air amené et requis par des équipements de ventilation, comme des CVC, sera insuffisant. Dès lors, les équipements demanderont plus d’énergie pour faire transiter l’air dans le réseau de ventilation, mais aussi pour se refroidir.

Recevoir le résultat par email

Guide

  • La densité ρ = 1,225 kg/m3. Elle correspond à la densité de l’air sec au niveau de la mer à la température de 15°C.
  • Débit volumique de ventilation en m3/s (qv) Cette donnée est fournie par l’ingénieur en charge de la ventilation et correspond au volume d’air ventilé requis pour le projet.
  • Surface nette d’aération exprimé en m² (A) Cette donnée est propre à chaque grille de ventilation et est fournie dans ses spécifications.
  • Coefficient de performance aéraulique Cette donnée est propre à chaque grille de ventilation et est fournie dans ses spécifications.

AMCA Certification

Construction Specialties Middle East, India, East & South Africa is proud to say that we are an AMCA member. You can view our certified products on AMCA’s website.

View Certified Products

Louvre Airflow Calculator

Airflow is a critical component of Louvre specification. The CS Airflow calculator helps you work out the free area and pressure drop of your chosen model.

Rain Defence Louvres

Rain Defence Louvres

Rain Defence louvres are designed to stop wind-driven rain entering a building, whilst still allowing efficient passage of air for natural ventilation.

Storm Resistant Louvres

CS Storm Resistant Louvres repel up to 100% of wind-driven rain. Available in both horizontal and vertical configurations.

Extreme Weather Louvres

CS Extreme Weather Louvres are built to withstand extreme hurricane, tornado and tropical storm conditions.

Sand Trap Louvers

Sand trap louvers designed to protect air intake from wind-driven sand.

Drainable Louvres

Drainable louvres reduce water penetration from non-wind driven rain.Blade gutters direct water sitting on the blades to vertical down spouts in the louvre.

Non-Drainable Louvres

Economical, Non-Drainable louvers should be used in applications where ventilation is important and water penetration is unlikely to occur.

Perform Louvres

Perform louvres offer air movement, security and sight screening performance with the addition of a perforated, decorative skin hiding the louvre blades.

Bold Line Louvres

Bold Line adds drama to any louvre application by allowing blade depth and colour freedom while providing high free area and superior water protection.

Architectural Line Louvres

A louvre system that uses hidden mullions, gives clean, architectural lines because the support system is behind the blades, making the mullions invisible.

ventilation louvres

Ventilation Louvres

Ventilation louvres offering good airflow with some rain defence, for use in areas where occasional water ingress is not a major concern.

Screening Louvres

Our simple screening louvres help to hide unsightly equipment whilst providing essential airflow to plant and HVAC machinery. Often used at the top of buildings.

Acoustic Louvres

Acoustic louvres reduce noise pollution from plant rooms and air handling systems, whilst providing essential intake or exhaust airflow to equipment behind.

Aesthetic Options

Louvre Aesthetics are an important part of the selection process. Choose from Hidden or Visible mullions & discover CS Bold Line and CS Perform.

Louvres

What's in the brochure
  • - Industry Leading Products
  • - Innovative New Design Options
  • - Detailed Technical Information
  • - Louvre Specification Guidance

+44 (0)1296 652800
sales@c-sgroup.co.uk
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