The Structural Conservation of Ruins

Ruined masonry structures form a small but important part of the historic estate. The issues encountered when assessing and repairing these structures can differ significantly from those associated with roofed buildings. Engineers working on ruins should understand historic construction methods, common mechanisms of decay and the principles of conservation. Numerical analysis should be used with caution, particularly where modern design codes are applied. Where structural repairs are required, they should be designed to conserve the significance of the structure and minimise intervention in the historic fabric.

This publication aims to help consulting engineers make informed decisions when assessing ruined masonry structures and designing repairs. It focuses on structural defects in ruined, traditionally built solid masonry walls, methods of inspection and assessment, and the design of appropriate structural repairs. The loss of structural elements and consequent changes in load paths can create structural issues that are not typically encountered in occupied, roofed buildings.

This publication is not intended to be an exhaustive design guide and does not cover every form of construction that may be encountered. Roofed buildings, retaining structures, arches and vaults are outside its scope, although they may be present at ruined sites. Further information on the repair of historic buildings and traditional materials can be found in the Historic England Practical Building Conservation series, particularly the volumes covering mortars, stone and brick