66 Singlewell Road, Gravesend, Kent, DA11 7PW
Damper Testing

These systems require a crucial maintenance regime that must be carried out annually.

Damper SYSTEMS

Fire and smoke dampers are a critical part of fire protection within a buildings ventilation system.

These systems require a crucial maintenance regime that must be carried out annually.  Failure to produce evidence of a valid inspection and testing may result in prosecution.

The dampers prevent the spread of fire through a ventilation system which helps to stop a fire from spreading to the rest of the building. They also help prevent smoke from traveling through the ductwork in the same instance. Smoke dampers are operated by sensors within the ductwork, as when smoke is detected the damper will automatically close, preventing the smoke from travelling any further. This is also the same for a fire damper, when a rise in temperature occurs, the fire damper will close and prevent the spread of flames through the ductwork.

Dampers are typically curtain style that will close when a fusible link melts. The fusible link typically melts when the temperature rises to 72 degree + 4 degrees.

Why they need Testing

The necessity to inspect and test fire and smoke dampers is enforced by the Regulatory Reform (Fire Safety) Order 2005 and BS 9999:2017 Code of practice for fire safety in the design, management and use of building. These regulations cover the inspection and maintenance protocols of ventilation and air conditioning ductwork, which state that:

“Arrangements should be made for all fire dampers to be tested by a competent person on completion of the installation and at least annually, and to be repaired or replaced immediately if found to be faulty. Spring-operated fire dampers should be tested annually, and fire dampers situated in dust-laden and similar atmospheres should be tested much more frequently, at periods suited to the degree of pollution.”

OUR SERVICE

The first phase will be to carry out a full survey of the Fire Dampers which may require additional inspection panels to be installed to gain access to the dampers for visual and physical checking.  We can then record the damper, take photos for evidence and highlight any advisories which may need to be addressed. The Fire Dampers will be meticulously inspected for signs of corrosion, obstruction or accumulated dust and dirt which could cause problems further down the line.  If the dampers are dirty, they will be cleaned manually along with any obstructions which may need to be removed. The next part of the inspection is key as this is the part which could prevent a fire. We are examining the shutter for freedom of movement by manually opening and closing the dampers. We do this by removing the actuators or via the ETS test switch. Upon request, we can also install a different coloured link to show that link itself has been tested.

Once all work is completed, we can articulate on the drawing where each damper is situated to assist with future works, and a compile a comprehensive report showing the time, date, and action taken on the system to meet fire safety compliance requirements.

British Standard 9999 covers routine inspection and maintenance of ventilation and air conditioning ductwork, and states that depending on the type and style of dampers, the maintenance is specified at a maximum interval of 12 months for spring operated fire dampers or at 2 years for others.

Nathan Bal
NSK Contractors Ltd
Director

We use EAWHS for all of our air and water hygiene work and have done for many years.

Fred Mansfield
Event Hire Group

We utilise EAWHS for their specialist water treatment services on a number of sites. They always deliver!

Jack Lee
June Commercial Services
Director

Evolution Air & Water Hygiene Services have worked closely with us on a number of projects in the south east, the service we are provided with is second to none.

Michelle Dormer
Abby Marketing
Director

Our ventilation system and water outlets needed to be tested and disinfected after some neglect. A full survey was carried out with explanations of problem areas showing clarity and good understanding

Jak Cantwell
Aventus Environmental

Specialist within the hygiene industry with a meticulous eye for detail, these are the reasons why we chose EAWHS every time.

David Catchpole
Estate Agent Director

EAWHS always exceed our expectations for the maintenance of our offices. Always pleasure, never a chore to deal with.

THE REGULATION

Regulatory Reform (Fire Safety) Order 2005 and BS 9999:2017 Code of practice for fire safety in the design, management and use of building.

“Arrangements should be made for all fire dampers to be tested by a competent person on completion of the installation and at least annually, and to be repaired or replaced immediately if found to be faulty. Spring-operated fire dampers should be tested annually, and fire dampers situated in dust-laden and similar atmospheres should be tested much more frequently, at periods suited to the degree of pollution.”

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