Louvres

Louvres
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Louvres

Product catalog summary
Introduction
Renson® specializes in creating healthy and comfortable environments through ventilation, sun protection, and terrace coverings. Their solutions focus on energy efficiency, renewable energy, and aesthetic integration into building designs.
General Material and Finishing
Louvres are made from aluminium profiles, known for being lightweight, strong, durable, and recyclable. They feature a natural oxide coating for corrosion resistance, enhanced by anodisation or powder-coating. Anodisation offers a standard layer thickness of 20 microns, with 25 microns recommended for aggressive environments. Powder-coating provides a wide color palette with a standard layer thickness of 40 microns.
Maintenance and Warranty
Aluminium requires minimal maintenance beyond cleaning. Renson offers a 10-year warranty on louvres, with specific terms for gloss and motors.
Product Range Overview
The document details various louvre types, including built-in, surface-mounted, glazed-in, acoustic, burglar-resistant, fire-resistant, and ventilation grilles, each designed for specific applications.
Selection Criteria
Selection involves considering geometric terms like visual and physical free areas, air technical terms like K-factor and C-coefficient, and noise reduction metrics like Rw and Dn,e,w values.
Intensive Ventilation
Renson's louvres facilitate night cooling by allowing large natural airflows, maintaining stable indoor climates. Specific louvre types offer rain-repellant properties and burglar resistance.
Watertightness Tests
Renson louvres undergo European testing for water resistance, ensuring performance under various conditions.
Specifications
Louvres are tested for water resistance by exposing them to downpours and wind. Classifications range from A (very good rain protection) to D (low rain protection). Air resistance class and specific coefficients are noted.
IP Classes
IP-class indicates protection against intrusion of objects and moisture, with examples like IP2XD and IP44.
Test Reports
Louvres are tested according to EN standards for air permeability, IP rating, burglar resistance, sound reduction, and water-repellant properties.
Options
Additional features include dust filters and removable insect meshes. The dust filter is a G4 class, filtering over 90% of dust particles.
Materials and Dimensions
Louvres are made from aluminium sections with stainless steel insect screens, available in various finishes and dimensions.
Conclusion
This document serves as a comprehensive guide for selecting and understanding the performance of louvres in different environmental conditions, emphasizing proper installation and additional features to enhance functionality.
Technical Specifications
Specifications for built-in wall louvres include airflow characteristics, material composition, dimensions, and fixing options. Key airflow parameters include K-factors, Ce and Cd coefficients, and free areas.
Materials and Construction
Louvres are constructed from aluminium sections with stainless steel insect screens, with finishing options including anodized or powder-coated surfaces.
Dimensions and Fixing
Standard dimensions include blade pitches and specific depth and flange sizes, with fixing facilitated by brackets.
Performance and Standards
Louvres are tested for airflow and sand resistance according to EN standards, with specific IP classifications for protection.
Technical Drawings
Technical drawings illustrate cross-sections and dimensions, aiding in installation and application planning.
Applications
Louvres are designed for high airflow applications and can be customized with various options to suit specific needs.
Sealing Possibilities
Sealing options include gaskets for sound reduction, PU sealing tape for water infiltration prevention, and silicone seals for external flange sealing.
Sound Reduction Louvre
Acoustic properties of Renson® blades have been tested, with technical specifications including airflow coefficients and sound reduction values.
Burglar-Resistant Louvres
Designed for security, meeting class RC2 and RC3 standards, made from aluminium and stainless steel.
Roof Turret and Floor Grilles
Roof turrets are used for office ventilation, while floor grilles are available in standard and heavy-duty series for ground heating applications.
Fire-Resistant Louvres
Designed to provide fire resistance for up to 60 minutes, suitable for installation in doors, walls, and ceilings.
Installation and Applications
Installation is specified for solid walls, suitable for fire-resistant constructions but not recommended for outdoor use.
Product Variants and Options
Details several product variants with specific dimensions, airflow capacities, and optional features.
Performance and Testing
Performance metrics such as airflow rates and fire classification ratings are provided, with compliance to EN standards.
Company Overview
Renson® focuses on creating healthy spaces with energy-efficient solutions, emphasizing customer engagement and innovation.
Production Facilities
Environmentally friendly production facilities ensure optimal quality and service.
Open Days and Contact Information
Renson® hosts open days for customer engagement, with contact information provided for further inquiries.
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Catalog excerpts

Louvres-3

INTRO OVERVIEW OF THE RANGE Renson® specialises in ventilation, sun protection, and terrace coverings. With experience dating back to 1909, and a team of around 1600 employees, we have been developing solutions aimed Paul Renson at achieving a healthy and comfortable living and work environment for the consumer. In doing this, we take into account energy-efficiency requirements and the use of renewable energy, as well as maintenance friendliness. We develop innovative products and systems, and offer total solutions that can make each house a healthy and comfortable home.” This is what underlies...

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Louvres-4

INTRODUCTION General 7 Online louvre selector 9 Intensive ventilation 10 Selection criteria 11 Options 16 OVERVIEW OF THE RANGE 18 PRODUCTS Built-in wall louvres aluminium 411 Wall louvre, standard series 411R Round wall louvre 412 Wall louvre with chevron section blades 412R Round wall louvre with chevron section blades 421 Wall louvre, heavy-duty series 421R Round wall louvre, heavy-duty series 422 Wall louvre with chevron section blades, heavy-duty series 427 Wall louvre, extra-heavy-duty series, with adjustable blades 451 Wall louvre, heavy-duty series 453 Wall louvre, heavy-duty series,...

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Louvres-5

Floor grilles aluminium 311 Convector grille 371 Floor grille, heavy-duty series Linear bar grilles aluminium 392 Linear bar grille 394 Linear bar grille for self-assembly Fire-resistant louvres aluminium Incendo® 464  Fire-resistant louvre with angled blades 465 Fire-resistant louvre with angled blades 466 Fire-resistant louvre with horizontal blades 467 Fire-resistant louvre with horizontal blades, in solid concrete wall 120’ Controllable cavity wall louvres 442 Cavity wall ventilator 441 Register with frame 4032 Register to fix XD Design extraction louvre Extractor vent Design extraction louvre...

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Louvres-7

GENERAL MATERIAL All louvres in this brochure have been manufactured from aluminiumprofiles AlMgSi 0,5 (according EN 12020-2). ∫ Light, strong & durable Aluminium is a very light metal, about one third of the weight of steel. This results in a lighter product, more efficient use of transport, high loading capacity, lower material usage… ∫ 100% recyclable Aluminium is 100% recyclable without loss of quality. The energy used to fuse the product takes only about 5% of the energy used to produce the original product. Did you know that 75% of the produced aluminium is still circulating the world?...

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Louvres-8

GENERAL Remark: a strengthening support will be provided for a louvre wider than 700 mm. Louvres with reinforcing profile LOUVRE WITH STRENGTHENING SUPPORT CONSTRUCTION TECHNICAL CHARACTERISTICS DIMENSIONS Getekend J.D Toleranties : DIN ISO 2768mk Materiaal : Metaal Datum Datum Getekend Getekend Schaal 1/3 J.D J.D 02/12/20 02/12/20 Creating healthy spaces Schaal Bestand 411 met traverse: Bestand Toleranties Formaat ∫ Surface-mounted louvres, flangeless louvres, and glazed-in louvres are characterised by their overall width and height dimensions. Ref. nr. : A4 411 met 411 met traverseRef. nr....

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Louvres-9

ONLINE LOUVRE SELECTOR Online louvre selector How to select the correct louvre for your application? WEBSITE WWW.RENSON.EU On the website www.renson.eu you can find an overview of all louvres including technical drawings, leaflets and product summaries. On this website, you can quickly find the most suitable louvre for your application, thanks to the extensive possibilities of searching, filtering, and calculating. You can also download the results of your selection, contact one of our specialists for additional advice, or find a dealer in your area.

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Louvres-10

INTENSIVE VENTILATION INTENSIVE VENTILATION – NIGHT COOLING The building will cool down by ventilating with large flows of natural air at night. The indoor climate will remain stable during the day given that the building will warm back up. This can be achieved by using specific louvres. Renson® surface-mounted louvres are recommended for supply, as these can be mounted easily on a (tilt and turn) window. These louvres are available in 3 variants: ∫ Type 431 – Excellent rain-repellant properties (class A: less than 1% water infiltration at high wind speeds) – Maximum airflow (physical free area:...

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Louvres-11

SELECTION CRITERIA Intensive ventilation / selection criteria GEOMETRIC TERMS FOR LOUVRES C ∫ Visual free area = determined by the ratio of the visual distance between two blades (A) to the blade pitch (C). ∫ Physical free area = determined by the ratio of the smallest gap between two blades (B) to the blade pitch (C). Owing to peripheral effects and assembly, a maximum deviation of 5% must be considered. ∫ Remark: The top and bottom blades are not taken into account in the two free area definitions. ∫ All properties of the louvres can be consulted or calculated using the free software on our...

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Louvres-12

WATERTIGHTNESS TESTS RAIN-REPELLANT Renson® louvres are subjected to European testing (according to EN 13030: 2011) by the internationally accredited corporation BSRIA Ltd. During these tests, a louvre of 1m2, equipped with stainless steel mesh is exposed to downpours at a rate of 75 litres per hour and a wind speed of 13 m/second. The classification is based on the obtained results, i.e. the quantity of water infiltrating through the louvre. Attention: The “air speed” reference always indicates the air speed at the suction side. If a louvre is assigned to a watertightness, the class suction...

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Louvres-13

With water channel Class % A 100 A 100 A 100 A 100 A 99,9 A 99,9 A 99,2 Standard equipped with water channel A 100 A 99,9 A 99,9 A 99,9 A 99,5 A 99,6 A 99,7 A 99,5 A 99,1 Standard equipped with water channel A 99,2 B 97,8 B 95,9 C 90,9 D < 80 Standard equipped with water channel A 100 A 100 A 100 A 99,7 C 80,2 D < 80 Standard equipped with water channel A 100 A 99,9 A 91,6 B 95 D < 80 A 100 A 99,7 C 91,6 D < 80 A 99,9 A 99,5 B 96,9 C 87,9 D < 80 A 99.5 A 99.0 B 96.5 D < 80 Air resistance class Ce ≥ 0,4 : 1 Ce: 0,3 – 0,399 : 2 Ce: 0,2 - 0,299 : 3 Ce < 0,2 : 4 Without water channel Class % Suction...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.