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Scaffolding was erected along the affected perimeter walls and wrapped in fire-retardant polythene, creating two enclosed drying zones inside the auditorium.
By isolating the wet construction in this way, the team reduced the volume of air that needed to be conditioned. Instead of trying to lower the humidity throughout the entire auditorium, dry air could be concentrated where evaporation was actually required.
The supplied photographs make the scale of this particularly clear: full-height scaffolded wall sections are enclosed behind translucent sheeting, while large temporary ducts run across the protected auditorium floor.
A Trotec 8200 industrial desiccant dehumidifier was positioned centrally and ducted into the two enclosures. Vortex air movers were then positioned at scaffold levels to increase airflow around areas with higher moisture levels.
This created a controlled mechanical drying system around the affected walls while leaving the wider auditorium outside the drying enclosures.
The site photographs also show the substantial temporary ducting and plant arrangement needed to move conditioned air across a space of this scale.
The auditorium's electrical system could not support the drying load, so the team installed a standalone generator outside the building.
Temporary power was routed through existing M&E routes to reduce disruption and trip hazards, while fuel logistics were managed throughout the 14-day programme to keep the drying system operating continuously.
That infrastructure is part of the restoration story: the drying design only works if the site can sustain it reliably.
The existing project record states that moisture levels in both perimeter walls reached safe and acceptable parameters within the projected 14-day programme.
It also records no damage to the listed structure or finishes and zero disruption to the wider refurbishment programme. The numerical moisture readings are not available in the published evidence, so the new case study should retain the documented outcome without inventing a dry-standard figure.
