Colt Performance Louvre

Transcription

1 Colt Screening and Ventilation Louvre Colt Performance Louvre Screening and ventilation whilst maintaining rain defence

2 Introduction Introduction The principal objective of screening louvre is to obstruct line of sight from normal vantage points by virtue of its design or orientation. Generally each run of louvre will have a continuous appearance unbroken by framing so as to blend in with the building, but it also can be made to provide contrast so as to provide an architectural feature. Whilst the screening application is certainly the simplest from a performance perspective, it is arguably the most demanding from the viewpoint of aesthetics and configuration. Colt Louvre allows maximum airflow with minimum resistance and are ideal for screening areas such as plant rooms and car parks. Design Considerations n What building elements do I want to hide? n Do I want the louvre to blend with the surrounding building structure? n Do I want the louvre to be a feature on my building? n What effect do I want to create? n What material and finish do I need? n Do I need to maximise the light entry through the louvre system? n Should louvre blades be inverted? Terminology Weather Louvre A device intended to allow the passage of inlet or exhaust air while minimising the ingress of rain (HEVAC). Free Area The minimum area through which air can pass. Determined by multiplying the sum of the minimum distance between intermediate blades, top blade, head and bottom blade and cill by the minimum distance between jambs (AMCA). In performance terms Free Area is a wholly meaningless measure. Measured Free Area A term used to indicate the open area between frame members with the louvre blades removed and used with the aerodynamic co-efficient (Cv) to calculate the aerodynamic free area and thus the pressure drop through a louvre. This is now sometimes referred to as the core area. Aerodynamic Area The product of measured free area and the aerodynamic coefficient. Equal to the total area of a theoretically perfect opening. This value is used for the calculation of the pressure drop. Development Facilities at Seletar, Singapore 1PR75 Frameless Screening Louvre UCL, London. Louvre doors to loading bay.

3 PR75 The PR75 system is an extruded aluminium louvre system available in a discrete 75mm pitch configuration for screening and performance applications. Each blade incorporates its own drain channel eliminating cascading. The PR75 louvre blade profiles offer the crisp lines typical of extruded aluminium sections, whilst it also offers industry leading effectiveness under normal weather conditions. The PR75 System can be tailored and coated to suit all commercial and industrial applications. n Performance tested and classified in accordance with AMCA 500L n Extruded aluminium louvre blades mounted at 75mm pitch n Unique modular design allows for construction of large panels, pent house units and irregular shapes n The PR75 louvre offers a competitive solution for screening and cladding and also offers excellent performance for normal weathered applications n Available in many decoartive finishes, including polyester powder coat and fluorocarbon paint finish. n Full range of accessories available to suit particular project requirements n Durable and reliable n Virtually maintenance free Optional Extras There are a large selection of optional accessories such as: n Mitred Corners n Blanking Panels (Single Skin or Insulated) n Special Shapes n Guards (Bird / Insect*) n Doors n Doghouse * Insect mesh will result in reduced airflow and additional resistance. 1PR75 Screening Louvre 45 o miter joint corner Chua Chu Kang Waterworks, Singapore 1PR75 Performance Louvre

4 Screening Louvre: 1PR75 Dimensions Profile Minimum size = 300mm(W) x 200mm(H) Maximum size = 1200mm(W) x 1500mm(H)

5 Performance data COLT China Manufacturing Ltd certifies that the 1PR75 shown hereon is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 511 and comply with the requirements of the AMCA Certified Ratings Program Air Performance The AMCA Certified Ratings Seal applies to Air Performance ratings and Wind Driven Rain Ratings. Test Information Tested in accordance with ANSI/AMCA 500-L, Figure 5.5. Test sample size is 1220mm x 1220mm (48in. x 48in.). Air performance data are based on intake performance. Data corrected to standard air density. Discharge coefficient = 0.27 (class 3) Wind Driven Rain Performance Rainfall Rate: 3in/hr (75mm/hr) Wind Velocity: 29mph (13m/s) Core Velocity (fpm) Core Velocity (m/s) Effectiveness (%) Penetration B B B B C C D D D D D Class Free area table A B N L ---> HEIGHT (mm) Width (mm)

6 Colt (China) Manufacturing Company 1st Floor Building 2 Hua Chuang Da Industrial Park Da Fu Road Da Fu Industrial Area Ku Keng Ao Bei of Guanlan Shenzen China ccmc@coltgroup.com.cn Catalogue Reference No.1 Revision 1 April 2018 Colt International Licensing Limited 2018