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Aesthetics
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- Available in lengths 885mm to 3485mm and
widths 800mm to 2100mm as standard.
- Pressed aluminium or steel low profile offering
clean, crisp profiles.
- Concealed operator option for the pneumatic
option.
- Base flanges available to suit Curb up stands,
Profiled sheeting, Glazing and Curtain walling
- Integrated Zefyr base flange option
- A full product and system design service is
available to suit all applications.
- A comprehensive range of complimentary products
and services are available.
A full range of finishes are available including
Polyester powder coating with guarantees up to
25 years, PVF2 / PVF3 coating with guarantees
up to 25 years, as well as natural and coloured
anodising. Only certified applicators are used
to ensure top quality and longevity.
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Excellent weathering characteristics
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- Equal to or better than the principle competitors
worldwide.
- Fitted as standard with an inter blade silicone
treated polypile seals.
- Independent certified laboratory testing.
- Testing certification to the BS7346 Pt.1.
- Proven performance world-wide over 15 years.
- Full technical support via a worldwide network.
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Excellent aerodynamic characteristics
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- Equal to or better than the principle competitors
worldwide.
- Tested to BS7346 Pt.1. - Independent certified
laboratory testing.
- Proven performance world-wide over 15 years.
- Full technical support via a worldwide network.
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Fire Testing / Structural Integrity
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- Fabricated from virgin non-recycled Aluminium
alloy 3005, 3003 or as specified by the engineer.
- Aluminium option is made from 1.5mm thick
aluminium alloy specified as above.
- We can offer a steel version to match a roof,
which is not available from any other competitor
we are aware of.
- Stucco aluminium version is available to match
the Zefyr roof.
- The ventilator has been tested for structural
integrity at temperatures exceeding 625°C
in independent test laboratories. This exceeds
the requirement of the relevant British Standard
- BS7346 Pt.1.
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Technical Support
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-Full worldwide technical support with central
back up from Zefyr Consultants in the UK.
- In house structural engineering expertise
with full computational / FEA modelling facilities
and physical test facilities.
- In house aerodynamic modelling facilities
with 3-D computational modelling facilities
for system and integration development.Ventilators
and buildings can be simulated on the computer
under different airflow conditions.
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Louvred Type Roof Ventilator Specification
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Manufacturer
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Louvres to be supplied by a Zefyr Approved
and Licensed Manufacturer
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Configuration
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Supplied to site fully assembled and tested
body assembled with a separate base flange
for rapid assembly / installation onto fully
prepared openings.
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Operation
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- PA1 - Air to close - Failsafe open
- PA2 - Air to open - Failsafe close
- EA1 - 240V ac Drive open / Drive Close
- EA5 - 240V ac Drive Close / Failsafe
Open - 24V dc failsafe latch
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Material
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Louvres are manufactured from high-grade
aluminium - not recycled.
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Support
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Structural opening / secondary steelwork
to perimeter of opening as required.
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Vent Body
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Frame - Manufacture from extruded aluminium
with integral clip detail to BS 1470 - 1050
H14 / extruded aluminium with integral clip
detail to BS1474 - 6036 - T6
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Blade configurations
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- Un-insulated
- Insulated
- Triple wall polycarbonate
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Base
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- Type 1 - Glazing Adapter - *6mm, *18mm,
*24mm - extruded aluminium to BS 1474
- 6063 T6.
- Type 2 - Zefyr base - precision-formed
sheet aluminium to BS 1470 - 1050 H14.
- Type 3 - Curb up-stand base - precision-formed
sheet aluminium to BS 1470 - 1050 H14.
- Type 4 - Profiled roof base flange -
precision-formed sheet aluminium to BS
1470 - 1050 H14.
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Guards
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-Bird guard - expanded aluminium - *Mill
finish / *coated.
- Insect mesh - *woven nylon coated with
black p.v.c. / *mill finish woven aluminium
/ *mill finish woven stainless steel.
- Security Grid - 150mm square 8mm dia
welded steel grid . Galvanised steel finish
with barrier tape to prevent electrolytic
reaction.
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Performance
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Ventilators to be manufactured and tested
in accordance with BS 7346 Pt.1
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Material Finishes
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All surfaces coated finished as followed
unless specifically identified otherwise.
- Mill finish
- Polyester powder coating colour / gloss
level as required
- PFDF-PVF2 coating colour / gloss level
as required
- PFTF-PVF3 coating colour / gloss level
as required
- Anodising to 25 microns natural / bronze
/ gold / black / coloured
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Maintenance
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Louvres and operating mechanisms must be
maintained in accordance with maintenance
instructions supplied to suit individual
applications.
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