no damp-proofing needed here

A quick run though a typical damp and wall tie survey result. Damp reported in this North leeds house is just condensation and a bridged physical DPC. However, the cavity wall ties are also checked and found to be very rusty - the house is built in Black Ash Mortar.
Survey by Bryan Hindle CSRT CSSW of BT Preservation
Damp and timber surveys by BT Preservation are availabble across Yorkshire