Challenge

The bakery extension incorporated multiple interfaces with the existing store, including the terracotta-tiled façade and green roof areas. Early inspections revealed incomplete design information, detailing inconsistencies, and potential drainage issues arising from the interaction between the new and existing roof systems.

COVID-19 restrictions and fluctuating workforce availability compounded programme delays, while ongoing store operations required careful coordination to maintain safety and business continuity. A further technical challenge lay in achieving precise alignment and weathertightness at the complex roof abutments and façade junctions.

Solution

Carré’s inspection team implemented a structured quality control process across three stages of construction:-

• Design Assurance: Early engagement identified missing or impractical abutment details; Carré coordinated with the contractor and installers to develop compliant revisions supported by structural and drainage calculations.
• On-Site Verification: Inspections focused on the integrity of membrane joints, gutter alignments, and roof interfaces, identifying deviations such as misaligned joints, patching issues, and inadequate weathering details.
• Collaborative Resolution: Carré worked directly with Wright Morgan and Streamline SW to agree corrective actions and verify workmanship improvements through re-inspection and photographic validation. Recommendations included alignment adjustments to cladding trims, improved capping flashings, upgraded outlet guards, and lead detailing to prevent ingress.