{
  "version": "https://jsonfeed.org/version/1.1",
  "title": "Breathable Building",
  "home_page_url": "https://breathablebuilding.co.uk",
  "feed_url": "https://breathablebuilding.co.uk/feed.json",
  "description": "UK-focused research on breathable building materials: lime mortar, lime render, breathable plaster and heritage construction. Plain English, primary sources.",
  "language": "en-GB",
  "items": [
    {
      "id": "https://breathablebuilding.co.uk/what-is-lime-plaster",
      "url": "https://breathablebuilding.co.uk/what-is-lime-plaster",
      "title": "Lime mortar vs cement mortar: which for heritage walls?",
      "content_text": "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.",
      "date_published": "2026-05-10T00:00:00.000Z",
      "tags": [
        "Lime plaster"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/lime-render-guide",
      "url": "https://breathablebuilding.co.uk/lime-render-guide",
      "title": "Cement render vs lime render: when to use each",
      "content_text": "Cement render vs lime render for UK buildings. Breathability, durability, cost, problems with cement on old buildings. Evidence from Historic England and BRE.",
      "date_published": "2026-05-10T00:00:00.000Z",
      "tags": [
        "Lime render"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/lime-mortar-vs-cement",
      "url": "https://breathablebuilding.co.uk/lime-mortar-vs-cement",
      "title": "Lime mortar vs cement mortar: which for heritage walls?",
      "content_text": "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.",
      "date_published": "2026-05-10T00:00:00.000Z",
      "tags": [
        "Lime mortar"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/lime-mortar-mix-ratio",
      "url": "https://breathablebuilding.co.uk/lime-mortar-mix-ratio",
      "title": "Lime mortar mix ratios: NHL 2, 3.5, and 5 explained",
      "content_text": "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.",
      "date_published": "2026-05-10T00:00:00.000Z",
      "tags": [
        "Lime mortar"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/lime-paint-guide",
      "url": "https://breathablebuilding.co.uk/lime-paint-guide",
      "title": "Lime paint guide: limewash, breathable paint, application",
      "content_text": "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.",
      "date_published": "2026-05-10T00:00:00.000Z",
      "tags": [
        "Lime paint"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/limestone-plaster-explained",
      "url": "https://breathablebuilding.co.uk/limestone-plaster-explained",
      "title": "Limestone plaster explained: types, application, when to use",
      "content_text": "What is limestone plaster (lime plaster), types (NHL, lime putty), vs gypsum plaster, application, when to use. Evidence from Historic England and BS standards.",
      "date_published": "2026-05-10T00:00:00.000Z",
      "tags": [
        "Lime plaster"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/lime-plaster-walls-guide",
      "url": "https://breathablebuilding.co.uk/lime-plaster-walls-guide",
      "title": "How to plaster walls with lime: preparation, technique, finishing",
      "content_text": "Step-by-step guide to lime plastering walls. Preparation, mix ratios, application technique, tools, finishing. Evidence from Historic England and SPAB guidance.",
      "date_published": "2026-05-10T00:00:00.000Z",
      "tags": [
        "Lime plaster"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/breathable-plaster-options",
      "url": "https://breathablebuilding.co.uk/breathable-plaster-options",
      "title": "Breathable plaster options: lime, clay, Breathaplasta",
      "content_text": "Types of breathable plaster for UK heritage and solid-wall buildings. Lime plaster, clay plaster, Breathaplasta. Pros, cons, when to use each.",
      "date_published": "2026-05-10T00:00:00.000Z",
      "tags": [
        "Lime plaster"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/lime-plaster-for-old-buildings",
      "url": "https://breathablebuilding.co.uk/lime-plaster-for-old-buildings",
      "title": "Lime Plaster for Old Buildings: Why Period Homes Need Breathable Finishes",
      "content_text": "Old buildings need lime plaster to allow walls to breathe, prevent damp, and flex with seasonal movement. Learn why modern plaster damages heritage fabric.",
      "date_published": "2026-06-10T00:00:00.000Z",
      "tags": [
        "Lime plaster"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/cement-render-vs-lime",
      "url": "https://breathablebuilding.co.uk/cement-render-vs-lime",
      "title": "Cement render vs lime render: when to use each",
      "content_text": "Cement render vs lime render for UK buildings. Breathability, durability, cost, problems with cement on old buildings. Evidence from Historic England and BRE.",
      "date_published": "2026-05-10T00:00:00.000Z",
      "tags": [
        "Lime render"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/lime-rendering-technique",
      "url": "https://breathablebuilding.co.uk/lime-rendering-technique",
      "title": "Lime rendering technique: step-by-step application guide",
      "content_text": "How to apply lime render to external walls. Three-coat system, tools, mix ratios, application technique, finishing. Evidence from Historic England and SPAB guidance.",
      "date_published": "2026-05-10T00:00:00.000Z",
      "tags": [
        "Lime render"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/lime-render-heritage-buildings",
      "url": "https://breathablebuilding.co.uk/lime-render-heritage-buildings",
      "title": "Lime render for heritage buildings: specification guide",
      "content_text": "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.",
      "date_published": "2026-06-03T00:00:00.000Z",
      "tags": [
        "Lime render"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/how-to-apply-lime-render",
      "url": "https://breathablebuilding.co.uk/how-to-apply-lime-render",
      "title": "How to Apply Lime Render: Step-by-Step Guide",
      "content_text": "Complete guide to applying lime render on heritage buildings. Three-coat system, mix ratios, tools, drying times. For UK traditional solid-wall buildings.",
      "date_published": "2026-06-01T00:00:00.000Z",
      "tags": [
        "Lime render"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/nhl-3-5-lime-mortar",
      "url": "https://breathablebuilding.co.uk/nhl-3-5-lime-mortar",
      "title": "NHL 3.5 lime mortar: properties, mix ratios, when to use",
      "content_text": "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.",
      "date_published": "2026-05-10T00:00:00.000Z",
      "tags": [
        "Lime mortar"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/hydraulic-lime-mortar-types",
      "url": "https://breathablebuilding.co.uk/hydraulic-lime-mortar-types",
      "title": "Hydraulic lime mortar types: NHL 2, 3.5, 5 differences",
      "content_text": "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.",
      "date_published": "2026-05-10T00:00:00.000Z",
      "tags": [
        "Lime mortar"
      ]
    },
    {
      "id": "https://breathablebuilding.co.uk/breathable-paint-lime-plaster",
      "url": "https://breathablebuilding.co.uk/breathable-paint-lime-plaster",
      "title": "Breathable paint for lime plaster: types, application, how to choose",
      "content_text": "Breathable paint options for lime plaster walls. Limewash, lime paint, silicate paint, clay paint. How to choose, application, costs. Evidence from Historic England.",
      "date_published": "2026-05-10T00:00:00.000Z",
      "tags": [
        "Lime paint"
      ]
    }
  ]
}