CFS launches patented façade restraint system

Latest News Thu, Sep 7, 2023 1:38 PM

Image - Detail of assembled façade restraint system

Having worked with several clients on façade retention projects, Construction Fixing Systems Ltd developed a unique system for façade restraint. Façade retention projects are common where there is a need to preserve an existing façade to preserve architectural heritage. The design was now awarded a patent.

“This product was developed as an answer to our project at Regent’s Park,“ explains Henry Chart, CFS CEO. “In this case, the big challenge was the lack of movement joints in the façade, despite the need to control the brick expansion.”

One of the most technically challenging aspects of this project’s façade’s rebuild was to achieve a historically accurate elevation that employed modern performance requirements while subtly controlling its movement and cracking to very tight tolerances. Movement joints, being a modern concept, were not acceptable on a grade I-listed façade


Image - This picture illustrates the movement allowed by the design

“Whilst movement joints are nowadays used in modern construction, they are not possible to be used in grade I-listed façade. However, in addition to the brick expansion, there is also concern about ground-born vibrations due to the proximity to three London Underground railway lines,” explains Iain McLellan, from Studio PDP. “The structural design provided by CFS answered this issue,” he added.

The new patented design consists of channels connected by a bobbin that allows for both vertical and horizontal movement and it doesn’t require movement joints.


Image - Example of typical installation


In association with Construction Fixing Systems Limited


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