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The Ventüer VL-77EX aluminium louvre system is designed specifically for exhaust situations and provides a low pressure drop allowing maximum airflow with minimum mechanical assistance. It has a low rain defence effectiveness, however this is not typically an issue in exhaust scenarios.
The rear of the louvre can be fitted with bird mesh, insect mesh or dust filters. Available in a wide range of standard powdercoat colours, the VL-77EX is manufactured to order and can be fabricated in a wide range of sizes. Independently tested and certified to BS/EN:13030.
The VL-77EX should not be used as an intake louvre or passive ventilator due to its low resistance to wind driven rain.
Installation requirements for the VL-77EX 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.
The VL-77EX louvre system was developed in New Zealand in 2011. Since that time it has been used extensively on a wide range of projects including industrial buildings, hospitals and storage facilities throughout New Zealand. Refer to the Ventüer website for detailed case studies.
Performance tested for weather resistance and airflow performance to BS/EN:13030, the VL-77EX is classified as follows:
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 information and maintenance requirements to comply with B2 can be found in the Ventüer Aluminium Ventilation Louvre Operation & Maintenance Manual.
All Ventüer ventilation louvre systems are fabricated from aluminium which is extruded locally here 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.
Ventüer designs and supplies engineered natural and mechanical ventilation products and systems for commercial, industrial and high-density residential construction projects.Product Enquiries
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