Stone Slate Roofing
Slate and stone roofs are a significant feature of many historic buildings. To repair and conserve them successfully necessitates the use of appropriate traditional materials and techniques.
A stone slate roof, providing it is well maintained, can last for at least a century and possibly much longer. This section of the website gives details on production, traditional techniques, conservation and sources of further information.
Stone Slate Roofing Technical Advice Note
The Stone Slate Roofing Technical Advice Note provides guidance for specifiers, conservators, contractors and building owners on the repair or reroofing with traditional stone slates in England. It deals specifically with slates produced from limestone and sandstone, rather than from real (or metamorphic) slate.
The guidance provides an overview of current practice and includes:
- Stone as a roofing material
- Principles of stone slate roofing
- Planning and legislation
- Investigation and recording
- Repair and re-roofing
- Life cycle costs
- Checklists for recording historic materials and construction details
Horsham stone roofing
Horsham stone is a group of sandstone beds in the Wealden clay of West Sussex in south-east England. Difficulties in obtaining stone slates for roof repairs resulted in a change of detailing to make the slates go further. The traditional double-lap was changed to a single-lap system and this resulted in confusion between the two systems.
The Horsham stone roofing guide describes the current state of knowledge and offers guidance in conserving, specifying and constructing these important and often complex roofs.
Other relevant publications
Traditional roofing has a vocabulary of unfamiliar technical terms for materials and techniques. You can download 'The Glossary of Stone Slate Roofing' from the Stone Roofing Association's website. This short publication explains the terms used in stone roofing and illustrates many of them.
The English Stone Forum have published the papers from a conference held on England's stone built heritage covering the historic use of stone, conservation practice, supply of stone, and planning issues associated with the use of indigenous stone. A copy of the publication can be obtained via the English Stone Forum website.