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Old earth-walled buildings, now relatively scarce, are a valuable part of our architectural heritage. Consequently, it is important that surviving examples are saved and any necessary repairs undertaken using appropriate materials and techniques. .

Advice on the repair and maintenance of slate roofs, or rather, true slate roofs.

Doors are important features of historic buildings. Although less widespread than in recent decades, the removal and replacement of old doors remains of concern to the SPAB. This article tackles some myths about their conservation.

The SPAB is frequently asked about flintwork. This article takes the opportunity to review some of the key issues the care and repair of walls constructed from this curious material.

Much of the guidance given by the SPAB over our Technical Advice Line concerns the 'undoing' of well-intentioned but ill-conceived work carried out from the mid-20th century to historic buildings. Such work has frequently involved the replacement of lime renders on external walls with highly unsuitable modern cement coverings – a serious time bomb.