This technical advice note gives guidance for architects, surveyors, and building owners, on the repair and reroofing of traditional stone slate roofs in England. It deals specifically with stone slates from sedimentary rocks (mainly limestone and sandstone) rather than with real slates, which are from metamorphic rock. As the material and methods of stone slate roofing vary from region to region, it concentrates on general principles. For guidance on the specific local roofing types and methods, advice should be sought from the local planning authority. Some local authorities provide leaflets on regional roofing practice. Further advice will be available in “Stone Roof Conservation: a best practice guide".

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