Consulting engineer King Shaw claims it has developed a zero heat loss wall as part of its design for a new education facility at Hampton Court Palace.

The Clore Learning Centre comprises the refurbishment of a 17th Century barrack block and the construction of a new single storey building. The long north wall of this steel and timber frame building will be constructed as a cavity, with an outer brick skin separated from the building’s thermal envelope by a ventilated void. A louvre runs between the top of the brick wall and the over-sailing roof, effectively enclosing the space between the walls.

Motorised dampers built into the building’s inner wall at floor level will allow fresh air to be introduced into the space from the void and the building will be ventilated using the displacement effect, driven by two tall stack effect chimneys.

In winter, heat is captured within the void and reintroduced to the building by the supply air, instead of escaping through the north wall and being lost to the outside, says King Shaw. In the summer, the thermal mass of the wall tempers the incoming air.