UK-focused research on breathable building materials: lime mortar, lime render, breathable plaster and heritage construction. Plain English, primary sources.https://breathablebuilding.co.uk/en-GBhttps://breathablebuilding.co.uk/what-is-lime-plaster/https://breathablebuilding.co.uk/what-is-lime-plaster/Lime mortar vs cement mortar for UK heritage and solid-wall buildings. Costs, application, breathability, and when to use each. Evidence from Historic England, BRE, and 20 years of field monitoring.Sun, 10 May 2026 00:00:00 GMTLime plasterhttps://breathablebuilding.co.uk/lime-render-guide/https://breathablebuilding.co.uk/lime-render-guide/Cement render vs lime render for UK buildings. Breathability, durability, cost, problems with cement on old buildings. Evidence from Historic England and BRE.Sun, 10 May 2026 00:00:00 GMTLime renderhttps://breathablebuilding.co.uk/lime-mortar-vs-cement/https://breathablebuilding.co.uk/lime-mortar-vs-cement/Lime mortar vs cement mortar for UK heritage and solid-wall buildings. Costs, application, breathability, and when to use each. Evidence from Historic England, BRE, and 20 years of field monitoring.Sun, 10 May 2026 00:00:00 GMTLime mortarhttps://breathablebuilding.co.uk/lime-mortar-mix-ratio/https://breathablebuilding.co.uk/lime-mortar-mix-ratio/How to mix lime mortar for repointing and building. Mix ratios for NHL 2, 3.5, and 5, sand selection, mixing technique, how much you need, and common mistakes to avoid.Sun, 10 May 2026 00:00:00 GMTLime mortarhttps://breathablebuilding.co.uk/lime-paint-guide/https://breathablebuilding.co.uk/lime-paint-guide/Complete guide to lime paint and limewash for UK heritage walls. Costs, coverage, application technique, vs masonry paint. Evidence from Historic England, SPAB, and BS standards.Sun, 10 May 2026 00:00:00 GMTLime painthttps://breathablebuilding.co.uk/limestone-plaster-explained/https://breathablebuilding.co.uk/limestone-plaster-explained/What is limestone plaster (lime plaster), types (NHL, lime putty), vs gypsum plaster, application, when to use. Evidence from Historic England and BS standards.Sun, 10 May 2026 00:00:00 GMTLime plasterhttps://breathablebuilding.co.uk/lime-plaster-walls-guide/https://breathablebuilding.co.uk/lime-plaster-walls-guide/Step-by-step guide to lime plastering walls. Preparation, mix ratios, application technique, tools, finishing. Evidence from Historic England and SPAB guidance.Sun, 10 May 2026 00:00:00 GMTLime plasterhttps://breathablebuilding.co.uk/breathable-plaster-options/https://breathablebuilding.co.uk/breathable-plaster-options/Types of breathable plaster for UK heritage and solid-wall buildings. Lime plaster, clay plaster, Breathaplasta. Pros, cons, when to use each.Sun, 10 May 2026 00:00:00 GMTLime plasterhttps://breathablebuilding.co.uk/lime-plaster-for-old-buildings/https://breathablebuilding.co.uk/lime-plaster-for-old-buildings/Old buildings need lime plaster to allow walls to breathe, prevent damp, and flex with seasonal movement. Learn why modern plaster damages heritage fabric.Wed, 10 Jun 2026 00:00:00 GMTLime plasterhttps://breathablebuilding.co.uk/cement-render-vs-lime/https://breathablebuilding.co.uk/cement-render-vs-lime/Cement render vs lime render for UK buildings. Breathability, durability, cost, problems with cement on old buildings. Evidence from Historic England and BRE.Sun, 10 May 2026 00:00:00 GMTLime renderhttps://breathablebuilding.co.uk/lime-rendering-technique/https://breathablebuilding.co.uk/lime-rendering-technique/How to apply lime render to external walls. Three-coat system, tools, mix ratios, application technique, finishing. Evidence from Historic England and SPAB guidance.Sun, 10 May 2026 00:00:00 GMTLime renderhttps://breathablebuilding.co.uk/lime-render-heritage-buildings/https://breathablebuilding.co.uk/lime-render-heritage-buildings/Lime render specification for heritage and listed buildings in the UK. Natural Hydraulic Lime grades, planning consent, cost, and why cement render damages historic masonry.Wed, 03 Jun 2026 00:00:00 GMTLime renderhttps://breathablebuilding.co.uk/how-to-apply-lime-render/https://breathablebuilding.co.uk/how-to-apply-lime-render/Complete guide to applying lime render on heritage buildings. Three-coat system, mix ratios, tools, drying times. For UK traditional solid-wall buildings.Mon, 01 Jun 2026 00:00:00 GMTLime renderhttps://breathablebuilding.co.uk/nhl-3-5-lime-mortar/https://breathablebuilding.co.uk/nhl-3-5-lime-mortar/What is NHL 3.5 lime mortar, properties, when to use, mix ratios, vs NHL 2 and NHL 5. Evidence from Historic England and BS EN 459 standards.Sun, 10 May 2026 00:00:00 GMTLime mortarhttps://breathablebuilding.co.uk/hydraulic-lime-mortar-types/https://breathablebuilding.co.uk/hydraulic-lime-mortar-types/Hydraulic vs non-hydraulic lime. NHL 2, NHL 3.5, NHL 5 differences. How to choose for UK heritage buildings. Evidence from BS EN 459 and Historic England.Sun, 10 May 2026 00:00:00 GMTLime mortarhttps://breathablebuilding.co.uk/breathable-paint-lime-plaster/https://breathablebuilding.co.uk/breathable-paint-lime-plaster/Breathable paint options for lime plaster walls. Limewash, lime paint, silicate paint, clay paint. How to choose, application, costs. Evidence from Historic England.Sun, 10 May 2026 00:00:00 GMTLime paint