CS Global

Wall protection | Expansion joint covers | Entrance matting

+44 (0)1296 652800
Menu
  • Home
  • Products
    • Acrovyn® Wall & Door Protection
      Acrovyn® Doors & Door Protection
      Acrovyn by Design® Bespoke Wall Coverings
      Explovent® Explosion Venting
      Omniwall Prefabricated Serviced Wall Systems
      Elimax Reform Flat Packed Serviced Wall Systems
      Allway® Expansion Joint Covers
      Entrance Flooring
      Pedisystems® Entrance Flooring
      Supertrak® Plus Cubicle Curtain Track
      Wallglaze® Performance Coatings
      Architectural Louvres
      CS™ Architectural Louvres
      CS™ Exterior Solar Shading
      APC Dayliter® Fire & Smoke Vents
      CS™ Architectural Grilles
      Dexpale® Pre-wired Lighting Display
      Online Shop
      Conspec Contracts Installation Service
  • Projects
  • Blog
  • Resources
    • Acrovyn Showcase
      Brochures
      Performance Certificates & Test Reports
      Best Practice Guides
      Market Sectors
      NBS Source Specifications
      CPD Seminars
      BIM Objects
      Installation Service
      Legislation & Compliance
      On-Demand Webinars
      vps Acrovyn
      IWP_VPS
  • About Us
  • Contact
    • Nos Distributeurs
      Le fabricant
  • Careers

Rain Defence Louvres

rain defence louvre
rain defence louvres 3
rain defence louvre 2

The main objective of Rain Defence Louvres is to allow the passage of air, whilst providing the area beyond the room with protection from rain penetration.

When specifying rain defence louvres we recommend comparing the airflow class and the level of rain defence provided by the louvre.

Our CS RS-5605 rain defence louvre offers the best combination of airflow, rain defence and spatial efficiency of any product on the market.

Why CS Rain Defence 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

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

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.

RS-5605 Rain Defence

The RS-5605 offers the best combination of airflow, rain defence & spacial efficiency of any louvre in the market with Class A rain defence up to 3.5m/s and an airflow class of 1.

RSH-5700 Rain Defence

The RSH-5700 offers an excellent combination of airflow, rain defence and spacial efficiency with Class A rain defence up to 3 m/s and an airflow class of 2.

RSV-5700 Rain Defence

RSV-5700 rain defence louvres are designed to stop wind-driven rain whilst still allowing efficient passage of air.

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
Order a Sample
Request an Estimate
Get Technical Help

Menu

  • CS Products
  • Projects
  • Blog
  • About us
  • Contact Us
  • Pick Country

Contact

Construction Specialties UK Ltd
1010 Westcott Venture Park
Westcott, Bucks, HP18 0XB
United Kingdom
Get Directions
Tel: +44 (0)1296 652800
Fax: +44 (0)1296 652888
Email: sales@c-sgroup.co.uk

Privacy

This website uses cookies to help us give you the best experience when you visit our website. By continuing to use this website, you consent to our use of these cookies. Find out more about how we use cookies and how to manage them below in our privacy policy.
Privacy Policy

Copyright © 2022 · Construction Specialties