Construction-stage oversight identified unsuitable routing and material compatibility risks affecting CPVC sprinkler pipework, enabling the installation to be halted and corrected before occupation.
- Client Housing association (confidential)
- Service Development fire safety oversight
- Contract start December 2024
- Contract term 3 + 2
- Value delivered to date £450k
Overview
Clear Safety supports our client across multiple residential developments, providing fire safety advice, compliance inspections and ongoing construction assurance. Our involvement extends from the early construction stages through to occupation, including pre- and post-occupation Fire Risk Assessments.
The Challenge
Clear Safety was appointed to provide fire safety inspections on a development of high-risk buildings where installation of a Category 4 sprinkler system had begun using chlorinated polyvinyl chloride (CPVC) pipework. During an early monthly inspection, our inspector found pipework in close contact with water and electrical services. In some locations it had also been routed through letterbox openings where inappropriate fire-stopping materials had been used.
- Contact with unapproved sealants, mastics or fire-stopping materials can soften CPVC or make it brittle, creating a risk of stress cracking.
- Routing close to hot water pipework can expose CPVC to temperatures that may compromise the system.
Our Approach
We notified the project team immediately and ensured that the installation was reviewed before further pipework was fitted using the same routes and details.
- Notified the Construction Site Manager and our client’s Clerk of Works.
- Recorded the proximity to other services and the unsuitable penetrations.
- Highlighted the compatibility risks associated with the materials used around the CPVC pipework.
- Supported a review of existing routes and the method for subsequent installation.
The Outcome
Installation of the sprinkler pipework was halted. The investigation confirmed unsuitable routing in several areas, so existing pipework was rerouted and the remaining installation followed a new, compliant route.
- Corrected unsuitable routing before the building was occupied.
- Reduced the risk of future pipework failure.
- Lowered the potential for internal water damage and disruption to residents.
- Reduced exposure to significant remediation and insurance costs.
Ongoing Support
Throughout the project lifecycle, from the start of construction through to handover and beyond, we provide independent fire safety inspections and compliance reporting. Working closely with the project team, we review designs, monitor construction work and address site challenges through practical, risk-based solutions. We also review Regulation 38 information, M&E commissioning and certification records, and final fire risk assessments to support a safe, compliant and fully documented building at completion.
Key Benefits
- Independent inspection of installation details during construction.
- Early identification of material compatibility and routing concerns.
- Reduced risk of defects remaining concealed until occupation.
- Better protection of building safety, programme and long-term asset performance.
