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VL-100S Twin Weatherstop Ventilation Louvre
Description

The Ventüer VL-100S aluminium louvre system is a single bank double weather stop ventilation louvre. It has good rain defence and medium pressure drop, making it an excellent choice where the same louvre type need to be used in both exhaust and intake situations.

It comes with a flanged perimeter frame, and can be fitted with bird mesh, insect mesh or dust filters.

Available in a wide range of standard powdercoat colours, the VL-100S is manufactured to order and can be fabricated in a wide range of sizes. Independently tested and certified to BS/EN:13030.

Key Features
  • Good airflow characteristics, resulting in high ventilation rates
  • Compatible with all common structure and cladding types, including precast concrete, metal cladding, fibre cement sheet and unitised curtainwall systems
  • Extruded aluminium construction, available in any standard powdercoat colour or anodising
  • Can be fitted with ancillaries such as bird mesh, insect mesh, dust filters, mechanical dampers and plenums
  • Cost effective
  • Independently tested and certified to BS/EN:13030
Scope of Use
  • Designed for use as an air intake or exhaust louvre in situations where exposure to moderate levels of wind and rain are expected, and where some water carry over is acceptable
  • Good airflow characteristics, resulting in high ventilation rates
  • Ideal for natural ventilation of carpark buildings, plant rooms and basements where some water ingress will not damage interior linings or equipment
  • Constructed from extruded aluminium and suitable for salt-spray zones and other corrosive environments when powdercoated appropriately
  • Compatible with all common structure and cladding types, including precast concrete, metal cladding, fibre cement sheet and unitised curtainwall systems
  • Ancillaries such as bird mesh, insect mesh, dust filters, mechanical dampers and plenums can be supplied fitted to the rear face
Limitations on Use

Water ingress from wind driven rain can be substantial if exposed to high winds or situated where cross flow can occur (i.e. having louvres on both sides of an empty building such as a storage facility). If interior linings or equipment within the building can be damaged by exposure to water, consider using the double bank VL-2SD louvre system instead.


As this louvre is not self-draining, panels greater than 1500mm high will have reduced weather resistance due to water shedding from the upper blades and flooding the lower portion of the panel.

Installation Requirements

Installation requirements for the VL-100S louvre system vary dependent on the site wind loads, louvre panel sizes, cladding type and primary structure detailing. Ventüer provides full shop drawings for all installations which show sequencing, fixing type and sizing, flashing requirements and sealant details. Installers should make themselves fully conversant with these shop drawings prior to installation commencing.

Statement of Building Code Compliance
  • When sized correctly, the VL-100S louvre system complies with the requirements for natural ventilation of buildings under the New Zealand Building Code clause G4
  • When installed in accordance with Ventüer technical literature, shop drawings and site-specific engineering the VL-100S louvre system complies with the requirements for structure under the New Zealand Building Code clause B1
  • When installed in accordance with Ventüer technical literature and shop drawings the VL-100S louvre system complies with the requirements around external moisture as outline in New Zealand Building Code clause E2
In-Service History

The VL-100S louvre system was developed in New Zealand in 2008. Since that time it has been used extensively on a wide range of projects including multi-story carparks, industrial buildings, aged care homes and storage facilities throughout New Zealand. Refer to the Ventüer website for detailed case studies

Other Performance Attributes

Performance tested for weather resistance and airflow performance to BS/EN:13030, the VL-100S is classified as follows:

  • Aerodynamic Coefficients:
    • Air Inlet: 0.313, Class 2
    • Air Extract: 0.304, Class 2
  • Rainwater Penetration:
    • Class B — up to 0.5m/s suction velocity
    • Class C — up to 2.5m/s suction velocity
    • Class D — up to 3.5m/s suction velocity


Engineered to withstand site-specific structural, seismic and wind loads in accordance with NZS:1170.

Fixings, flashings and sealant details are designed to comply with NZ Building Code Clause E2.

Warranty and Maintenance

Warranty information and maintenance requirements to comply with B2 can be found in the Ventüer Aluminium Ventilation Louvre Operation & Maintenance Manual

Environmental Information

All Ventüer ventilation louvre systems are fabricated from aluminium which is extruded locally in New Zealand. The majority of this aluminium is 'green aluminium', meaning that the electricity for smelting is supplied from renewable energy sources (such as is the case with Tiwai Point, which relies on hydro-power).

Any waste generated during manufacture is fully recycled, as can be any louvres at the end of their useful life.

All powdercoating of louvre components is carried out by certified applicators and the use of chromate treatment processes is strictly avoided.

Effective use of passive ventilation devices such as louvre systems can significantly reduce the energy consumption of a building, reducing both its carbon footprint and whole of life cost.

Documents
Ventuer Ventilation Louvres Manual
Data Sheet: VL-100S
Deflections & Spans: VL-100S

VL-100S DDS v1

Support Bar Spacing: VL-100S

VL-100S DDS v1

Ventuer Louvre Calculator
Ventuer Aluminium Ventilation Louvre Operation & Maintenance Manual
Ventilation Louvre Structural Fixing Guide

VL-PFSG v1

Ventuer Powdercoat Colours

2018

Ventilation Case Studies
CAD/PDF Details
VL-100S Data Sheet

VL-100S

Installation Details
VL-100S Fixing to Brick Veneer

VL-100S

VL-100S Fixing to Fibre Cement Cladding

VL-100S

VL-100S Fixing to Horizontal Corrugated Iron

VL-100S

VL-100S Fixing to Precast Concrete

VL-100S

VL-100S Fixing to Vertical Corrugated Iron

VL-100S

Ventuer designs and supplies engineered natural and mechanical ventilation products and systems for commercial, industrial and high-density residential construction projects.

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