From London Docklands to Hertfordshire, Northumberland and North Lincolnshire, the UK data centre landscape is shifting towards larger, denser and more power-intensive campuses.
Driven by rising demand for AI, cloud services, digital platforms and high-performance computing, this growth brings huge opportunity for the UK, but it also raises the stakes in the consequence of failure.
As data centres become more critical to the economy and everyday digital activity, CSD Sealing Systems says greater attention must be given to the physical weak points within data centre facilities. Particularly where cables, pipes and services pass through walls, floors and external boundaries.
The Government’s designation of data centres as Critical National Infrastructure reflects the role these facilities now play. However, much of the industry discussion still focuses on cyber security, grid connection, power resilience and network availability.
These issues are critical, but they are not the whole picture. A data centre is also a physical asset. Its ability to remain operational depends on cable routes, ducts, risers, containment, plant rooms, cooling systems, pipework, battery areas and service entries all performing as they should.
Every cable, pipe or service that passes through a compartment line or external boundary creates a point of risk. If those penetrations are not properly sealed, they can provide a route for fire, smoke, water, gas or other external threats to move through the building.
In particular, airtight smoke protection deserves greater attention. Smoke movement through cable ducts, risers, service entries or poorly reinstated penetrations can affect safety, equipment protection, incident response and recovery planning.
Peter Litchfield, technical sales director at CSD Sealing Systems, said: “Data centre resilience is often discussed in terms of power, cooling, cyber security and connectivity, but the physical interfaces between those systems are just as important.
“As data centres become larger, denser and more complex, every cable or pipe that passes through a wall, floor, riser, duct or external boundary needs to be properly protected.
“The question shouldn’t be if a seal meets a requirement at the point of installation, but whether it can meet the requirement and continue to support the resilience of the facility over time.”
That matters as data centres continue to evolve over time. Cable routes become more congested, cooling strategies change, additional services are installed, tenants expand and facilities are upgraded while still live.
Each intervention can affect the integrity of service penetrations if the sealing strategy has not been properly considered.
This is where penetration sealing can be underestimated. It is sometimes treated as a late-stage compliance item, when in reality it has a direct bearing on how well a facility is protected from disruption.
Peter added: “For new data centres, sealing should be considered early in the design and specification process. Opening sizes, cable density, future spare capacity, fire strategy, smoke-tightness, water exposure, gas risk, electromagnetic protection and access for maintenance all influence what will be suitable.
“For existing facilities, the challenge can be more complex. Service penetrations may have been altered several times. Original seals may have been disturbed or replaced. Additional cables may have been pulled through without the wider compartment strategy being reviewed and drawings may no longer reflect what is actually on site. In those environments, assumptions are risky.”
The commercial impact of downtime is well planned for, but what can be less visible is how physical weak points contribute to that risk.
A localised issue can quickly have bigger consequences. Water entering a duct route, smoke moving through an unsealed riser, gas migration into a protected area or a compromised fire compartment can all affect equipment, safety, recovery and continuity of service.
Peter added “Designers need systems they can specify with confidence. Contractors need solutions that can be installed consistently in congested or restricted spaces. Operators need protection that can be inspected, maintained and re-entered as the facility changes. And asset owners need assurance that critical areas remain protected throughout the life of the building.”
As the UK’s data centre estate continues to expand, the resilience conversation needs to move beyond the most visible systems and include the hidden interfaces that help keep those systems safe.
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