Sennit Construction

Protected Membrane Strip-Out & Refurbishment Over Critical Operations, Award Nominated

Project summary

This project was one of the top three finalists at the Scottish Roofing Awards 2025 in the Bituminous Hot Applied Liquid Waterproofing (Scotland) category.

Blochairn Fruit Market is a major operational hub for Scotland and Northern England, and the Admin Block roof sits directly above a live CCTV monitoring facility. Our client needed a roof renewal delivered with zero tolerance for leaks, minimal disruption, and long-term confidence in the waterproofing solution.

Sennit Construction managed a heavy strip-out and installed a manufacturer-supported flat roofing system designed for durability and performance.

Proud Finalist at the NFRC Scottish Roofing Awards

Project facts

Client: City Building Glasgow (CBG)
Location: Glasgow
Project value: Under £250,000
Building type: Operational admin building (live CCTV hub below)
Services delivered: Felt roofing / flat roof refurbishment, thermal upgrade, detailing & waterproofing
System: Bauder Total Roof System (BTRS) with warranty-backed components

The brief

City Building Glasgow commissioned a full flat roof refurbishment to replace a failing roof build-up and improve long-term performance.

The non-negotiable requirement: the building remained watertight at all times, with no risk to the live CCTV monitoring hub beneath.

The challenge

This wasn’t a simple overlay project. This building houses the CCTV hub that monitors Scotland’s busiest food market, so keeping the roof watertight 24/7 was critical during the works.

The existing roof build-up included:

3,000+ concrete slabs
loose laid insulation
an ageing waterproofing layer

Removing that safely and efficiently was a project in itself. Add a critical facility to the mix and there’s no margin for “we’ll patch it later”, every shift had to finish secure and watertight.

Most roof refurbishments are about stopping leaks. This project was about protecting the administration hub that supports one of Scotland and North England’s busiest fruit markets. Maintaining full weatherproof integrity (where rain is relentless) was essential to ensure uninterrupted day-to-day operations.

The result? Long-term assurance for our client and a roof system engineered for decades of performance, not just the next winter.

Our solution:

We approached this like a logistics problem as much as a roofing job

Safe, efficient strip-out

To remove the slabs without turning the project into a manual-handling risk or a programme killer, we introduced specialist workhorse trolleys and controlled movements to skips.

Sequenced delivery

Works were phased roof-by-roof, allowing scaffold and access to be managed in stages and keeping exposure time to an absolute minimum.

Manufacturer-supported system install

A complete Bauder build-up was installed to spec (primer, vapour control, insulation, underlay, cap sheet), with technical support ensuring warranty compliance and consistent detailing at outlets, perimeters and junctions.

The result

Critical operations protected: Watertight integrity maintained throughout

Delivered within agreed programme and budget
Long-life roof system installed with manufacturer-backed support
Improved thermal performance through upgraded insulation
A tidy, robust finish that reflects pride in workmanship

Why the Blochairn Market refurb matters

Most roof refurbishments are about stopping leaks. This one was about protecting live operations that feed the UK. The end result is peace of mind for the client and a roof built for decades, not just the next winter.