ROOFING STANDARDS AND GUIDANCE
ROOFING STANDARDS AND GUIDANCE
Historic Roofs
These product standards and codes of practice do not necessarily apply to historic roofing materials and their installation although some of their previsions are relevant. Guides for historic roofs are listed on the Publications page.
Stone Slates
There are no standards for stone slates (limestones and sandstones). More information here
Slating and tiling
-BS5534:2003 Code of practice for slating and tiling
-BS8000 Part 6:1990 Code of practice for slating and tiling of roofs and cladding
Roofing Slates
-BS EN 12326-1:2004 Slate and stone products for discontinuous roofing and cladding. Product specification
-BS EN 12326-2:2000 Slate and stone products for discontinuous roofing and cladding. Methods of test
Explanation of slate testing here and a page on pyrite here
NFRC Technical Bulletin
TB4a Selecting Natural Slates for Roof Covering provides advice on conformity to EN12326-1 and which slates to choose for the UK.
NHBC guide
Slates - no more grey areas sets the standard for slate used on for buildings within their control.
Clay Tiles
-BS EN 1304:2005 Clay roofing tiles and fittings. Product definitions and specifications
-BS EN 539-2:2006 Clay roofing tiles for discontinuous laying. Determination of physical characteristics. Test for frost resistance
British Standards Institution
Standards can be obtained from the BSI shop
Delamination in slates which claimed conformity to EN12326-1
Pyrite failure
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