Architectural Louvres

St Regis, Chicago, US RSV-5700 Rain Defence Louvres 30

About Us Established in 1948, Construction Specialties is a family-owned business with 22 offices worldwide and has key manufacturing locations or sales offices in most European countries. Wherever you are, we can provide customers with fast local support from trained and experienced personnel. GLOBAL EXPERIENCE CS developed the first extruded louvre 60 years ago and has since been involved in thousands of successful projects around the world. Many of our standard models have been created through collaboration with customers, helping them realise their design vision and meet their building’s...

KEY FEATURES DESIGN FREEDOM PROJECT GALLERY Specification Guidance LOUVRE SELECTION WEATHER LOUVRE TESTING TERMINOLOGY Rain Defence Louvres Ventilation Louvres Screening Louvres SLA-Z SLP-Z SLA-S SLA-C SLA-I Acoustic Louvres Materials & Finishes Accessories & Extras Our Services C - S G R O U P. CO. U K

World Trade Center Transportation Hub, New York, US RSH-5700 Rain Defence Louvres (blast resistant option) 26

Why CS Louvres? 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. Required on most facilities to provide essential airflow, architectural louvres help to improve a building’s energy efficiency....

St Regis, Chicago, US RSV-5700 Rain Defence Louvres 30

Why CS Louvres? DESIGN FREEDOM At CS we believe that ventilation isn’t a restriction, it’s an opportunity. Our range of high performing louvre solutions lets you achieve your true vision - without sacrificing performance. Horizontal blade orientation is not a default with our louvre systems. Some of our best performing rain defence models feature vertical blade arrangements and are available in a variety of blade pitches to fit with your façade design. Rain Defence Louvres: RSV-5700 30 RS-5900 32 RS-5605 34 Vertical blade designs are particularly effective at capturing and draining rain water...

While some louvres are all about standing out — others are more about blending in. Our PerformTM options are concealed behind an attractive, perforated aluminium skin. They’ve been fully tested for rain defence and airflow performance. Rain Defence Louvre PL-5700 36 Ventilation Louvre PL-4080  48 Perforated aluminium skin is available in a wide range of colours and finishes. Custom materials or perforation patterns can be accommodated, subject to additional testing. The louvre modules are supplied powder coated black to disappear behind the decorative screen. Defy boring and add drama to your...

Project Gallery 16 Chestnut, Denver, US Bold LineTM B-7505 Rain Defence Louvres incorporating LED lighting 38 One World Trade Center, New York, US RSH-5700 Rain Defence Louvres 26 Sydney University, Faculty of Arts & Social Sciences, Australia Perform model PL-5700 Loma Linda, US PerformTM PL-4080 Ventilation Louvres  52

One Raffles Quay, Singapore Bold LineTM Rain Defence Louvres University of Maryland, US RSH-5700 Rain Defence Louvre (rooftop installation) 26

177 Pacific Highway, Sydney, Australia A-4085 Ventilation Louvres  50 Sydney University, Faculty of Arts & Social Sciences, Australia PerformTM PerformTM PL-5700 Rain Defence Louvres 36 University of Northampton Campus, UK RSV-5700 Rain Defence Louvres

Noris Data Centre, Germany RSV-5700 Rain Defence Louvres 30 University of Manchester, UK RSV-5700 Rain Defence Louvres 30 Greenwich Square, London, UK SLA-Z Screening Louvres  58

Specification Guidance The principal reason for using louvres is to allow the movement of air. Each project should be considered independently, ensuring that the specified solution delivers all the required performance criteria. A plant room housing expensive HVAC equipment will typically require rain defence louvres to offer both good airflow and protection from rain water ingress. In addition, sound attenuation and noise reduction may be required in any of those situations. Acoustic louvres should then be considered. For projects where the primary concern is maximum airflow, and some rain penetration...

PERFORMANCE VS. DESIGN VISION Louvre specification is a balance between form and function, with louvred façade appearance playing an important part in the selection process. With a wide range of options available, louvres can become a stand out feature, or harmoniously blend with the building’s design. • Building site’s position • Prevailing weather conditions (especially wind direction) • Location of the louvres on the building and their exposure to wind driven rain • Required airflow performance and acceptable pressure drop • Level of permissible rain water penetration • Acoustic requirements...

Specification Guidance P E R F O R M A N C E C O N S I D E R AT I O N S AIRFLOW PERFORMANCE With the exception of projects where louvres are specified purely to provide vision screening, their effectiveness in letting the air in and out of a building will always be a critical performance consideration. FREE AREA PRESSURE DROP Traditionally, louvres were specified and sized based on the Free Area alone. The industry commonly uses a nominal 1m2 louvre size when quoting Free Area. In reality, louvres are never precisely this size. All louvres restrict the passage of air, creating a pressure differential...

ACOUSTIC PERFORMANCE Where noise emission to the outside environment is a concern, acoustic louvres should be considered. Acoustic louvres may be required to reduce factory or plant room noise, particularly in areas close to pedestrian walkways or other buildings. They can be installed as standalone screens, or integrated into the façade. Where required, they can be fitted behind rain defence or ventilation models. Their depth (typically between 150mm and 600mm, depending on acoustic performance) and weight should be considered early to ensure sufficient support structure is provided. SECURITY...