NBS Source
Passivent Airscoop Roof Ventilation Terminal

Application

Provide natural ventilation to large buildings and deep plan spaces.

Description

A range of displacement (top down, wind driven) natural ventilation roof terminals designed to 'capture' prevailing wind and direct it via four separate chambers within the terminal to the space beneath.


Research shows that air is constantly entering one or more of the chambers or exhausting via one or more of the chambers depending on prevailing wind speed and direction.


Features and benefits:

  • Patented double-bank louvres for maximum rain rejection and optimum airflow.
  • Complete separation of chambers prevents ‘short-circuiting’.
  • Square or circular terminal designs available.
  • Structural base unit divided into four separate chambers, provides structural support to terminal and damper housing.
  • Patented motorised insulated four-way volume control dampers within sub-base, controlled by single actuator.
  • The dampers simultaneously control the flow of air into and out of the unit. 
  • Unique quad arrangement of CFD-designed inlets/outlets provides efficient passage of air movement at low velocities and good air distribution, preventing ‘short-circuiting’


Weather performance:

  • Tested to BS EN 13030 ‘Performance testing of louvres subjected to simulated rain’: double-bank louvres Class A 100% at 0.00 m/s, Class A 100% at 0.50 m/s.
  • Thermal insulation U-value 1.6 W/m²K when basic dampers are closed.
  • Resistant to continuous wind loads at 51 m/s.
  • 4 mm insect screen.
  • Compatible with a controller.


Acoustic Performance:

  • Airscoop Basic system up to 32 dB (Dn,e,w).
  • Airscoop DAD system up to 34 dB (Dn,e,w).
  • Airscoop RAD ducted systems up to 42 dB (Dn,e,w).


Free Area (with base louvre):

  • 575 x 575 = 0.064 m².
  • 800 x 800 = 0.182 m².
  • 1025 x 1025 = 0.331 m².
  • 1250 x 1250 = 0.561 m².

General information

Shape

Square

Circle

Color

To match project. Insert RAL or BS colour.

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Finish

Polymer

UV Stable.

Material

ABS

Acrylonitrile butadiene styrene.

Plywood

Marine grade plywood.

Aluminium

Size

575 x 575 mm

800 x 800 mm

1250 x 1250 mm

1025 x 1025 mm

Uniclass

Ss_65_40_33_56 Natural ventilation systemsPrimary

CAWS

H60/87 Roof slope terminals

H64/73 Installing roof slope terminals

H62/87 Roof slope terminals

H62/850 Roof slope terminals

Specification data - Natural ventilation systems Enhanced data

System performance

Natural ventilation design.

Ventilation inlet openings

Dampers and louvres.

Actuators

Damper actuators.

Supply points

Air diffusers.

Exhaust path

Exhaust path is through the ABS terminal and then out through the roof.


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Ventilation outlet openings

Roof stack air terminals.

Accessories

Not required.

Acoustic lining.

Controls

Natural ventilation control systems.

Ventilation opening control

Sensor-controlled.

Execution

Installing natural ventilation systems.

System completion

Commissioning of air distribution systems.

Environmental information

Contains Red List materials

No

Country of product manufacture

United Kingdom

Digital objects

Platform Compatible Version Certified to
Revit
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1

1

Download now from NBS National BIM Library

Literature

Passivent Literature - Roof Ventilation Terminals for Sports Halls

Passivent Literature - Roof Ventilation Terminals for Sports Halls

Passivent Literature - Roof Ventilation Terminals

Passivent Literature - Roof Ventilation Terminals

Passivent Specification Document - Airscoop Roof Ventilation Terminal - Direct Air Dispersal

Passivent Specification Document - Airscoop Roof Ventilation Terminal - Direct Air Dispersal

Passivent Specification Document - Airscoop Roof Ventilation Terminal - Remote Air Dispersal

Passivent Specification Document - Airscoop Roof Ventilation Terminal - Remote Air Dispersal

Passivent Specification Document_Airscoop Roof Ventilation Terminal - Basic

Passivent Specification Document_Airscoop Roof Ventilation Terminal - Basic

Case studies

Passivent case study - Tesco Natural Ventilation Project, Ramsey, Cambridgeshire

Passivent case study - Tesco Natural Ventilation Project, Ramsey, Cambridgeshire

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