Cavity Wall Tie Failure

Surveyors have been increasingly called upon to identify and remedy wall-tie failure. In the present book, the methods for recognising a cavity wall, and for detecting whether there has been tie failure, are clearly set out. Professor Hollis gives a concise history of the use of cavity walls in the United Kingdom and of the standards that have been laid down for tie manufacture. He indicates the percentage possibility of failure according to the period in which a building was constructed. There is detailed advice, with illustrations, on the selection of appropriate replacement ties, where to obtain them and how to fit them. For the surveyor called upon to advise on the state of a building with cavity walls, guide-lines are provided on how to report the likely level of risk without being either alarmist or negligent. Malcolm Hollis is professor of building surveying at the University of Reading and a practising surveyor at Nationwide Anglia. He is author of Surveying for Dilapidatins and broadcasts frequently on all aspects of building surveying.Hollis, Malcolm is the author of 'Cavity Wall Tie Failure ', published 1990 under ISBN 9780728201620 and ISBN 0728201623.