A friendly and welcoming school based in Blackburn in the North West of England, St Stephens Church of England Primary School is a place where pupils can develop their skills in a school that is proud of its Christian values and high standards of teaching. The school has been praised for its philosophy of continuous improvement by a recent ofsted inspection, providing a nurturing environment for children. Continuing the high level of teaching facilities is paramount for the school and after discovering that the gutters and parapets of building were aged and leaking, it was vital that a solution was found before this could cause issues.

St Stephens Church of England Primary School

Project Size: 300m2
Approved Contractor: KSD Group
Location: Blackburn
Project Type: Refurbishment
Sector: Education
System Installed: Xtraflex System


In coordination with Polyroof Products Ltd a survey was scheduled to take place at the site to determine the exact nature of the issues and formulate a solution. Upon inspection it was discovered that the existing waterproofing consisted of a single-ply membrane which had become aged with various leaks being reported and localised repairs carried out with not much effect. The underlying build-up consisted of a galvanised steel metal deck and had been coated in plasticol. Once the survey was complete it was clear that the gutters and capping’s would benefit from a high-performance waterproofing system installation, this would protect from further leaks occurring.


The first coat of Polyroof Protec Xtraflex was applied to the substrate, this consisted of Xtraflex resin and Polymat 450 and allowed to cure. Due to the rapid cure technology of the system this would only take 30 – 60 minutes allowing for quick installation. Once complete the second coat of Protec Xtraflex Resin was installed and allowed to cure.


The project was efficiently managed by both the contractor KDS Group and regular Polyroof Technical Services visits to ensure that each aspect of the project from start to finish was carried out within the client’s specification, time frame and budget. The project was a great success showing the high-quality work from KSD Group. The customer can now be confident that this new Polyroof Protec Xtraflex membrane will last for many decades to come.

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