Services > Room Integrity Testing

Room integrity testing

Our Aim Is To Get You A Pass! Firecheck Contracts Ltd ensures the continued protection of your business by conducting regular room integrity testing.

We provide the necessary Room Integrity Testing to the required standard NFPA 2001 (2012 ed.) ISO 14520 (2006 ed.) and the EN 15004 ( 2008 ed.) We have extensive experience in testing all types of enclosures, from server rooms in offices to hospital care units. The NFPA and ISO requires that an enclosures integrity be tested on completion of a gaseous system installation and thereafter on an annual basis.

We are certified by Retrotec Inc Levels 1, 2 & 3. All Certified engineers are listed on Retrotec website under Locate a Tester

Certification available on request

Firecheck Contracts Ltd offer simple solutions to your Integrity Test and Leakage problems based on years of practical on-site experience.

We offer design and construction stage consultancy services to help our clients achieve successful test results at the first attempt. We can carry out any remedial works to your enclosure if the extinguishing agent is escaping, thus failing the integrity test, this involves a high standard of sealing to all perimeter walls within enclosure, adding door seals to bottom of doors and around frame and the sealing of porous block

Room Sealing:

Type of Room

The construction of the room is of great importance when sealing the room. Block and concrete walls from slab to slab are more advantageous than plasterboard partitions. The size of the enclosure also plays a significant part. The larger the enclosure the more allowable leakage is allowed. The smaller the enclosure the more difficult it becomes as the allowance is next to nothing.
The criteria to determine whether the amount of leakage is acceptable is based on the retention time it takes for the interface to reach the highest equipment needing protection. The minimum time is 10 minutes (unless co2), so room height can play a significant part in this if equipment is too high or the ceiling void is not protected.
It should be noted that small rooms (<600m3) protected with chemical gasses such as Novec, and HFC227EA (FM200) are very difficult to seal adequately so they will pass a room integrity test, Inert gasses ie, ig55, ig100, ig541 may be a better option in this case, please contact Firecheck for more information


Sealing works should be carried out using the correct materials such as intumescent fire batt, mastic and coating.
Foam is used by many builders and causes numerous problems. Not only is it very untidy, but is also porous. Pillows placed in cable trays do not create an airtight seal and are often taken out due to new cable runs and not replaced.


Sealing of a gas suppression system enclosure has to be of a very high standard, higher than that of normal building practice. It is always recommended to seal a room within the enclosure rather than outside especially with plaster board partitions, due to cavity problems.

All holes, cracks and service penetrations should be sealed around the perimeter walls high and low level. All materials should be fire rated to BS standards. It is important to prevent spread of smoke from outside enclosure creeping in and setting off the gas fire suppression system, as well as maintaining a fire within. All plasterboard joints or any other construction joints should be sealed with Intumescent mastic. Porous block walls should be painted with Intumescent coating. Windows and other glazed areas should be sealed with a transparent silicon. Trunking boxes should be sealed inside at point of entry and all doors should have drop down seals applied at bottom of door and weather stripping around frame.

Fresh air supply’s and Extracts

All fresh air supplies and extracts should not cause any problems if dampers closed on a gas discharge.

Pressure Relief Dampers

Pressure relief is required once a room is sealed to a high standard. This protects the enclosures structural stability. The vents remain closed during normal situations but upon a gas discharge the vent opens to relieve excess pressure, then closes again to maintain room integrity.

Of interest to the clean agent installer is the testing of rooms for adequate pressure relief. In all cases, if a room is too tight, potentially damaging pressure can develop after agent discharge. Using Retrotec FanTestic Integrity software, the Door Fan test equipment can be used to predict the maximum expected pressure in the room during discharge and calculate the amount of venting required.
If pressure-relief vents are installed in the enclosure, the Door Fan test equipment can be used to pressurize the enclosure and test correct design and functioning of the vents. Pressure relief vents rarely open at the prescribed pressures and if they do, rarely open fully as required.