Car Park Ventilation
Car Park Ventilation
Group SCS offers a wide range of design services for car park ventilation beginning with an assessment of the most effective strategy for the individual building.
Our in-house design team produces detailed designs and specifications, including CFD and acoustic analyses for smoke control, smoke clearance, and pollution control systems. Design, supply, and installation of complete systems including bespoke plant rooms and intelligent, energy-saving control systems are delivered by our Specialist Contracting team.
To provide sufficient openings for enclosed car parks to allow any smoke being produced to leave the space naturally, or if this cannot be achieved then to remove smoke via a mechanical extract system.
To provide sufficient openings arranged such that a thorough draught at low to mid-level is created to allow CO to leave the car park naturally, or if this cannot be achieved then to limit the concentration of CO within the space via a mechanical extract system.
Mechanical Car Park Ventilation
Mechanical extract systems use powered fans to control the build-up of CO in the car park. Broadly, there are two types of systems available – ductwork and jet fan car park ventilation system. They are both suitable for the needs of an underground car park and have different benefits.
Traditionally, systems use sheet metal ductwork to transport the fumes
or smoke extracted to the external atmosphere. The ducts must be evenly distributed around the car park, as well as drop to low levels to provide the low level extract points.
Accommodating large ducts can be problematic due to the low headroom in most car parks. Low-level ducts can be subject to damage from vehicles.
Jet fan systems
These car park ventilation systems are characterised by jet fans replacing the traditional ductwork. They drive fumes or smoke towards extract fans, keep pollution within acceptable levels, and clear smoke. Our packaged car park ventilation system, UniJet, is designed to provide smoke clearance and pollution ventilation to covered car parks to comply with current building regulations.
How UniJet works
The UniJet car park ventilation system delivers combined pollution and smoke clearance using jet fans to provide an energy-efficient and safe solution whilst requiring the least possible plant space.
The system comprises high-temperature extract fans that exhaust smoke and pollution to the atmosphere with strategically positioned jet or impulse fans used to move stale air or smoke to the extract fan positions. You can read more about how the extract fans operate in our Guide to Car Park Ventilation.
Fully automatic controls monitor carbon monoxide levels and smoke or temperature conditions within the car park and operate the fans at the appropriate level, maintaining safe and comfortable conditions within the car park.
Packaged main extract plant room including fans, silencers, dampers and control systems. Tested prior to location on-site.
Optional CFD models available to support design.
Modular control system incorporating CO sensing for enhanced energy efficiency.
Training and support from the Group SCS Technology and Training Hub.
How to Specify a UniJet system:
Use the Selection Table to obtain a system type
To select the correct unit, simply calculate the volume of the car park you are interested in specifying UniJet for and select the correct model from the table. If you can’t find the volume of your car park on the table, round up to the one closest to yours.
The Contractor's Guide to Car Park Ventilation
Understand the different approaches to car park ventilation with our Contractor's Guide to Car Park Ventilation. In this guide, you will find comprehensive information about the safe ventilation of underground and covered car parks.
Explore our work
Read more about how we implemented the UniJet Packaged Car Park Ventilation system in some of the projects we worked on.
Having previously successfully completed the Westfield London project Grou…
Central Square is a brand new office development in the business district …
Once you've specified UniJet, you can proceed by either contacting a Group SCS Approved Installer in your area or by getting in touch with our Specialist Contracting division. Follow the links below to find the relevant information.
Natural Car Park Ventilation
The preferred method of ventilating car parks, natural ventilation simply requires openings to fresh air being provided to an equal percentage of the floor area of the car park. This method relies on a path to the outside being freely available, which is not usually the case for underground car parks, where a mechanical extract system is required.