Technical Statement
Scope of use
Designed
for use as an acoustic louvre in situations such as plant enclosures and
industrial environments where a medium level of attenuation is required.
Fitted with an extruded aluminium front blade profile providing a higher
level of weather resistance than traditional flat blade acoustic louvre
profiles. Constructed from 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. Should be used with caution in
situations where water ingress is of concern as high wind speeds and heavy
rainfall can result in water being blown between the blades.
New Zealand Building Code (NZBC)
The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:
- Clause B1 Structure: Performance B1.3.3(a), B1.3.3(f), B1.3.3(h)
- Clause E2 External moisture: Performance E2.3.2
- Clause G4 Ventilation: Performance G4.3.1
Evidence
The product meets the requirements set out in the following documents, or relevant parts of cited standards within the documents:
- When
sized correctly, the AL-300W 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 AL -300W 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 AL -300W louvre system complies with the requirements around
external moisture as outline in New Zealand Building Code clause E2
Supporting evidence
The product has and can make available the following additional evidence to support the above statements:
Use in Service History
The
AL-series of acoustic louvres were developed in New Zealand in 2019. Since
that time they have been used on multiple projects throughout New Zealand,
including apartments, hotels, industrial buildings and residential dwellings.
Refer to the Ventüer website for detailed case studies -
https://ventuer.co.nz/case-studies-ventilation/
Product Criteria
Design requirements
-
300mm deep, providing medium level of noise reduction
- Compatible with all common structure and cladding types, including
precast concrete, metal cladding, fibre cement sheet and unitised curtainwall
systems
- 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
- Independently tested and certified to ISO 10140-2
Installation requirements
Installation
requirements for the AL-300W 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.
Maintenance requirements
Refer to Ventüer Operation & Maintenance Manual
Warrantees
Refer to Ventüer Warranty Document
Environmental
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.
Relationships
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Auckland Uniservices Limited
T1922-2 |