Case Studies

Bowes Road

As part of a wide-scale refurbishment project to improve the aesthetic outlook and services within the local area, the Enfield Council employed Playle and Partners LLP who contracted ENGIE Regeneration. ENGIE partnered with Langley Structures to complete ten Flat to Pitched (FTP) roof conversions and two roof refurbishments.

By implementing the FTP system, Enfield Council benefits from an improved aesthetic look of the buildings and an opportunity to make changes, including meeting modern building standards. Long-term maintenance of social housing roof assets is a key component of a council’s planning. Therefore, a durable pitched roof solution, reducing maintenance costs as opposed to maintaining the existing flat roofing system was also beneficial.

Initially, Langley compiled a comprehensive client specification which comprised of the following design work;


• Plan and evaluations.
• Existing and proposed drawings for planning.
• Roof cores to the existing roof to determine the construction and assembly.
• Dead load and wind calculations to determine the fixing pattern and pull out resistance.
• Final drawings for the client’s approval.


The four symmetrical ’L shaped’ roofs posed an initial challenge to design. This was due to the different depths of each roof segment, which meant a varying ridge height. Careful consideration was needed, and the decision was made to move the centre line of the ridge, having minimal impact on the aesthetic look of the buildings.

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