Construction Specialties

Wall protection | Expansion joint covers | Entrance matting

Call: 01296652810 or Buy Online
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
      Allway® Expansion Joint Covers
      Entrance Flooring
      Pedisystems® Entrance Flooring
      Architectural Louvres
      Architectural Louvres
      Exterior Solar Shading
      Online Shop
  • Projects
  • Blog
  • Resources
    • Brochures
      Best Practice Guides
      Market Sectors
      NBS Source Specifications
      CPD Seminars
      BIM Objects
      Legislation & Compliance
      On-Demand Webinars
  • About Us
  • Contact
  • Careers

Louvre Specification Calculators

Louvre Specification Calculators

We’ve developed 2 tools to help you specify louvres for your building.

Pressure Drop Calculator

Calculate the pressure drop for a given amount of louvre to ensure it meets your requirements.
Pressure Drop Calculator

Area Calculator

Calculate how much Louvre is required to achieve a specific volume flow rate and pressure drop.
Area Calculator

Pressure Drop Calculator

Our Pressure Drop Calculator helps you find the pressure drop for your chosen CS Louvre model.

What is Pressure Drop?

The pressure differential between two sides of the louvre, typically expressed in Pascals (Pa).

As air is mechanically drawn or pushed through a louvre, pressure is created due to the turbulence. The increasing pressure measurement of this turbulence or ‘Pressure Drop’ at higher air velocities is an important part of overall mechanical system design and louvre selection and sizing.

Area Calculator

Our Core Area Calculator allows you to calculate the required area of louvre for a specific pressure drop and volume flow rate.

Why is it useful?

Depending on the louvre model you choose, you may be able to reduce the amount of louvre for your building.

Here’s an example using 3 of our popular rain defence models.

For a given Volumetric Flow Rate of 30m3/s, maximum Pressure Drop of 25Pa, the following Core Area* is required:

  • RSV-5700 = 16.36m2
  • RS-5900 = 13.73m2
  • RS-5605 = 10.08m2

*core area excludes louvre frame

Specification

Guidance

The principal reason for using louvres is to allow the movement of air. But, louvre specification is a balance between form and function, with louvred façade appearance playing an important part in the selection process.

  • Performance Considerations
  • Design Considerations
  • Weather Louvre Testing
Learn more

Compare our

Louvre Models

To help you find the right Louvre within our comprehensive range, we've put together a comparison sheet, highlighting key performance and aesthetic information for each of our models.

  • Rain Defence Louvres
  • Ventilation Louvres
  • Screening Louvres
  • Acoustic Louvres
Download Comparison Chart

Discover how we

help our customers

Your project is unique, as is every challenge – and that’s where we shine. With unrivalled experience, passion and support we’ll help you tackle the toughest of challenges.

See our Louvre projects
Ask us a question

Sustainability

information.

As a sustainable manufacturing company we recognise our impact on the environment, and are committed to pursuing better. The standard alloy we use to manufacture our louvres contains at least 55% recycled pre-and post-consumer scrap content. We've also achieved Cradle to Cradle Bronze Certification for all louvres manufactured in our Westcott Facility.

Discover more
Ask us a question

Louvres

2016 Louvre Brochure

We have been manufacturing and selling louvres globally for over 60 years. When you specify our systems, you get the support of a dedicated team with a wealth of experience and design capability.

The performance of our louvres has been evaluated by independent third party testing. In addition, any of our standard or bespoke solutions can be verified in our own testing chamber to ensure they achieve specified performance levels in real world conditions.

Download the brochure for:

  • Industry Leading Products
  • Innovative New Design Options
  • Detailed Technical Information
  • Louvre Specification Guidance

+44 (0)1296 652810
Get In Touch
Order a Sample
Request an Estimate
Please complete the form below, or give us a call on +44 (0)1296 652800...

Get Technical Help

Menu

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

Contact

Construction Specialties UK Ltd
1010 Westcott Venture Park
Westcott, Bucks, HP18 0XB
United Kingdom

Visiting Us?
Get Directions

Tel: +44 (0)1296 652810
Fax: +44 (0)1296 652800
Get In Touch

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

CS ISO Accreditations

General Terms & Conditions

Copyright © 2025 · Construction Specialties

Copyright © 2025 · Genesis Framework · WordPress · Log in