Design Solution · Building Envelope
Design Solution · Dream about it
A glass-steel-timber double dome lighting the central hall.
The central Great Hall is topped by a double dome of glass, steel and timber, daylighting what is likely the largest covered public space in Oxford. The double-skin dome admits light while managing heat loss and gain consistent with the airtight envelope. It creates a shared social heart that connects the faculties.
A double dome of glass, steel and timber daylighting a large civic hall is a formal device for delivering natural light into what would otherwise be a dark central volume, while the double-skin construction manages the thermal penalty of a large glazed roof. The structural ambition is evident — spanning a substantial public space in a mixed-material double skin is complex to engineer, detail for airtightness, and maintain — and the description suggests this sits within a Passivhaus envelope, which sharpens the technical challenge considerably. The evidence is self-reported with no daylighting measurements, thermal performance data or structural cost comparison cited, so the performance claims rest on design intent. For a specifier the relevant questions are how the double skin performs thermally in summer — large glazed roofs are chronic overheating risks in a UK climate that is warming — and what the maintenance access and replacement strategy is for a bespoke double-dome structure. As a spatial and structural idea it has clear value in creating a shared civic heart; the engineering detail and long-term performance need independent scrutiny before committing to the approach.
#dome #daylight #atrium