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Description

Automatic opening vent (AOV) to reduce smoke and heat in the case of fires, and to enable escape.

Features and benefits:

  • Developed to mimic the standard range of Xtralite rooflights, maintaining external aesthetics.
  • Designed to provide natural smoke ventilation for single-stair blocks of flats, common escape routes, basements, enclosed car parks and vertical smoke shafts.
  • In addition to effective air flow when operational, the automatic opening vents resist weather penetration and provide appropriate thermal insulation when closed.
  • Can be used with simple control systems linked to smoke detectors, networked systems or centralized control panels.
  • Manufactured in accordance with EN 12101-2.

General information
Size

See 'Options' below and insert requirements.

Uniclass 2015
Natural smoke and heat exhaust ventilators (Pr_70_65_04_56)Primary
Specification data - Natural smoke and heat exhaust ventilators
Product Reference

Automatic Opening Vent (AOV)

Type

Double pitch

Double flap, with 90° opening.

Louvred

Lightweight and compact.

Single pitch

Single flap, available for 90° or 140° opening. Insert requirements.

Size

See 'Options' below and insert requirements.

Upstand/ kerb -
Material

Aluminium

Galvanized steel

Finish

Polyester powder coated – white

Configuration

Not required

For louvred AOV.

Kerb

Kerb adaptor

Flanges

Only applicable to some types. Consult manufacturer for details and insert requirements.

Material -
Type

Double skin aluminium blade

For louvred AOV.

Insulating glass units

For single and double pitch AOV. Double glazed glass unit with toughened outer and laminated inner.

Multi-wall polycarbonate blade

For louvred AOV.

Polycarbonate – single skin

For single and double pitch AOV. Available in the full size range.

Polycarbonate – triple skin

For single and double pitch AOV. Available in the full size range.

Single skin aluminium blade

For louvred AOV.

Single skin laminated safety glass blade

For louvred AOV.

Solid metal panel

For single and double pitch AOV. Insulated and polyester powder-coated, generally located at the head of a smoke shaft when only ventilation is required in case of a fire, so no need for light.

Shape

Not required

For louvred AOV.

Dome

Polycarbonate only.

Flat

Pyramid

Polycarbonate only.

Controls

24 V DC actuator

Standard product features

Controls:

AOV units operate via a 24 V DC 'power open/ power close' actuator, which must be operated by a CE-certified, battery backed control panel.

Product Options

Type:

- Double pitch:

  • Both pitches of the vent open to 90º.
  • Can be supplied with an insulated kerb for fixing directly to the roof deck. The roofing membrane is dressed up the outside of the kerb to provide resistance to weathering. Alternatively, if a kerb is constructed as part of the roofing system, a kerb adapter can be supplied. Both kerb and kerb adaptors are manufactured from folded galvanized steel or aluminium, and can be thermally broken.

- Louvred:

  • Lightweight, compact and maintenance free.
  • Suitable for installation on flat or pitched roofs and walls.
  • All components are corrosion resistant, and the side panels are reinforced with inner and outer longitudinal profiles.
  • Louvre blades can be manufactured from opaque or translucent materials.
  • The multi-channel drainage system and overlapping louvres guarantee a rain-proof system.

- Single pitch:

  • Vent can open to 90º or 140º.
  • Can be supplied with an insulated kerb for fixing directly to the roof deck. The roofing membrane is dressed up the outside of the kerb to provide weathering. Alternatively, if a kerb is constructed as part of the roofing system, a kerb adapter can be supplied. Both kerb and kerb adaptors are manufactured from folded galvanized steel or aluminium, and can be thermally broken.

Size:

Units are made to measure, and can be sized to meet Approved Document B minimum ventilation requirements of 1.0 m² or 1.5 m².

Finish:

Some variations may be available in other powder-coated colours: consult manufacturer for details.

Material:

- Type:

Single or double glazed AOV's can be supplied in three forms:

  • Insulated glass units with toughened outer and laminated inner leaves.
  • Single or triple skin polycarbonate.
  • Solid metal panel, insulated and powder coated. Generally used at the head of a smoke shaft where no light is required.

Consult manufacturer for recommendations.

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