A room integrity test, also called a door fan test or enclosure integrity test, measures how airtight a protected enclosure is. A calibrated fan temporarily pressurises the room and the leakage rate is measured. This determines whether the room is tight enough to hold the suppression agent at the required design concentration for the minimum holding time specified in SANS 14520, typically 10 minutes.

Yes. SANS 14520 (the South African standard governing gaseous fire extinguishing systems) requires that the protected enclosure be integrity tested before a system is formally commissioned, and at regular intervals during its service life. Most insurers also require a valid integrity test certificate as a condition of cover for fire suppression systems.

An integrity test is required at initial commissioning and must be repeated whenever the enclosure is modified, for example after cabling works, HVAC changes, partition alterations, or raised floor modifications. Annual re-testing is best practice and is commonly required by insurers and maintenance contract specifications.

If the enclosure fails, Morimi Fire will provide a detailed report identifying where leakage is occurring. In most cases, remedial sealing works, filling cable penetrations, sealing raised floor voids, or attending to door seals, can resolve the issue, after which a retest is performed. We manage the full process.

Morimi Fire operates a double fan test configuration capable of testing enclosures up to 2,900 m³, covering everything from small IT closets and server rooms through to large data centre halls and industrial plant rooms across Gauteng.

A standard single-zone test on a server room or small data centre typically takes 2–4 hours including setup, testing, and initial reporting. Larger enclosures requiring double fan configuration may take a full day. Testing can generally be scheduled to minimise disruption to active operations.