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80 Fenchurch Street




Manufacture & Instillation



IDSL was involved early on in assisting Skanska with the development of the basement smoke extract systems along with our supplier Fire protection Ltd.


The 80 Fenchurch Street project is a 15-storey office block and with the success with the early installation ahead of the Façade at Heron Towers, IDSL suggested to the Skanska team that this would be beneficial to the project to get the installation underway to ensure the tight programme dates were met. This has again paid dividends and IDSL, along with the other mechanical services have all completed the first fix installation ahead of the programme and ahead of the Façade team.


The main CAT A office supply & extract risers on the project required re-engineering due to a late design change involving additional fire rated cladding being applied to the structural steelwork. This meant IDSL along with Skanska had to look at an oversized cantilever bracket detail to accommodate the Riser Itself and the MSFD’s support system, as the structural steelwork couldn’t be used for the original bracket design. Due to the size of the riser and the configuration of the concrete poured structural core wall, IDSL designed/engineered the riser with large factory cut panels to allow the installation team access into the riser duct via MEWP’s to gain access to the internal joints and to ensure that the ductwork was sealed/built correctly. The installation of the riser was identified as a H&S high risk, so IDSL & Skanska worked closely to ensure the installation team that undertook the works did so in the safest way possible. This included an animated installation sequence being produced to demonstrate the installation method and on approval from the H&S team the pictorial slides were added into the RAMS. This proved to be beneficial for when the installation team was briefed prior to the works being undertaken, as they could visually see the way the risers had been engineered and the way the risers had to be built.

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