Leeds Technology Campus Redevelopment - IKO Permatec

Challenges

Despite the flat roof design being relatively straightforward, the Technology Campus redevelopment presented a series of intricate challenges that required meticulous planning and expert delivery. One of the most significant hurdles was the requirement for a fully non-combustible roofing and parapet system to meet high-rise fire safety regulations. This included not just the main roof area, but also parapets that needed to be structurally reinforced to support abseil cappings, which were introduced as a late-stage client requirement.

Working at height without the use of external scaffolding presented additional complexity. Temporary edge protection was initially fixed to the top of the parapets, allowing the main flat roof areas to be installed. However, once these finishes were completed and the edge protection removed, operatives had to install the parapet waterproofing using only safety harnesses and running lines. This phase of work demanded exacting levels of care and coordination. The parapets had to be sealed using a self-adhesive IKO membrane and overlaid with a layer of Foamglas insulation.

The detailing had to be fully integrated with the rear of the curtain wall EPDM to ensure airtightness and complete waterproofing continuity. This work was not only technically demanding but had to be performed in exposed winter conditions, with high winds and frequent rainfall adding further risk. Delays to the external façade package compressed the programme further, pushing parapet works into the final stages of the project and creating intense time pressure ahead of practical completion.