DORCHESTER ON THAMES
This Oxfordshire Grade II Listed church was re-roofed approximately 10 years prior to our work. A non-breathable roofing felt had been placed between the boarded ceiling and the stone roof. This effectively sealed the roof space, preventing any natural ventilation.
The church was heated intermittently and following services with a full congregation, condensation formed on the lower face of the felt, wetting the boarding and causing ideal conditions for woodworm.
The works, specified by historic buildings consultants, Oxley Conservation, involved removing the stone roof together with felt and treating the rafters and boarding with a water-based insecticide to halt the infestation. The stone was then replaced, minus the offending felt.
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