Diagnosis
The gallery is Grade II Listed and was formed by a merger of neighbouring Bedford and Higgins galleries, allowing both to be financially viable. The basement bridges the link between both original buildings and was part of a major Lottery funded project to provide additional gallery facilities. The existing area needed to be excavated for full height exhibition space and required waterproofing and radon resistance.
Solution
We installed a full Newton 508R cavity drain waterproofing system with all fixings and joints double sealed to be gas proof. The Basedrain channel was linked to a pumping system which we continue to service on an annual basis.