Terms of Use: By accessing and using RoofPitchCalculator.co.uk, you agree to these Terms of Service. All calculators, conversion tables, and architectural diagrams are provided for planning, estimating, and educational purposes.
Intellectual Property & Accuracy
All calculation engines, interactive vector visualizers, and written technical guides are protected under UK copyright law. Users are permitted to use calculations for professional estimates, architectural plans, and construction projects.
📚 Primary Technical Sources & British Standards
- BS 5534:2014+A2:2018: Code of practice for slating and tiling for pitched roofs and vertical cladding. British Standards Institution.
- BS 5250:2021: Management of moisture in buildings — Code of practice. British Standards Institution.
- BS 6229:2018: Flat roofs with continuously supported flexible waterproof coverings — Code of practice.
- NHBC Standards Chapter 7.2: Pitched Roofs — Minimum pitches, rafter timber sizing, batten gauges and fixing specifications.
- UK Manufacturer Technical Literature: Marley Technical Handbooks, BMI Redland Fixing Guides, CUPA Pizarras Slate Technical Manuals.
Last technical audit date: 17 August 2026.