Description
This session explores the historical use, decline, and ongoing challenges of slate and lead roofing, emphasising the need for skilled craftsmanship and careful material selection in the conservation of historic buildings.
Key Points
- Slate roofing evolved from locally sourced materials to a widespread industry boosted by 19th-century rail transport but declined due to cheaper alternatives and labour costs.
- Lead roofing requires precise detailing and experienced craftsmanship to manage issues like thermal expansion, corrosion, and improper installation.
- Imported and modern materials, including second-hand slate and alternative metals, present both opportunities and risks for historic roof conservation.
Learning Objectives
- Understand the historical development and regional variations in slate and lead roofing materials.
- Identify common installation and maintenance issues affecting the longevity of slate and lead roofs.
- Evaluate modern interventions and material substitutes for compatibility with traditional roofing systems.
