{"componentChunkName":"component---src-templates-storyblok-page-jsx","path":"/blog/sertus-smoke-control-damper-sld-sets-new-benchmark-for-bs-9991-2024-smoke-control-compliance","result":{"pageContext":{"story":{"id":"storyblokentry-156939731545712-default","uuid":"0bdef1ff-32ea-4c30-bcd9-67b7b2f52b42","name":"Sertus Smoke Control Damper (SLD) sets new benchmark for BS 9991:2024 smoke control compliance ","created_at":"2026-03-20T11:09:24.136Z","slug":"sertus-smoke-control-damper-sld-sets-new-benchmark-for-bs-9991-2024-smoke-control-compliance","field_component":"blogPost","full_slug":"blog/sertus-smoke-control-damper-sld-sets-new-benchmark-for-bs-9991-2024-smoke-control-compliance","content":"{\"_uid\":\"7272b370-27ef-42f5-89d7-197e3c8be30f\",\"image\":{\"id\":7528675,\"alt\":\"\",\"name\":\"\",\"focus\":\"\",\"title\":\"\",\"source\":\"\",\"filename\":\"https://a.storyblok.com/f/79904/1920x1280/efd19b3a53/snd-r-1.png\",\"copyright\":\"\",\"fieldtype\":\"asset\",\"meta_data\":{},\"is_external_url\":false},\"intro\":\"Updated certification positions Sertus smoke control damper among the few solutions able to meet the full performance intent of the latest residential fire safety standard. \",\"author\":{\"name\":\"Steve Knight\",\"created_at\":\"2025-10-13T09:48:08.688Z\",\"published_at\":\"2026-03-30T09:12:32.518Z\",\"alternates\":[],\"id\":101004446489646,\"uuid\":\"c8408dbb-4d9e-4beb-8d50-ef29e20677da\",\"content\":{\"_uid\":\"87524d6a-4989-4a03-9382-e426c51f0843\",\"photo\":{\"id\":159021196987011,\"alt\":\"\",\"name\":\"\",\"focus\":\"\",\"title\":\"\",\"source\":\"\",\"filename\":\"https://a.storyblok.com/f/79904/3000x4500/6474044145/sk.jpg\",\"copyright\":\"\",\"fieldtype\":\"asset\",\"meta_data\":{},\"is_external_url\":false},\"lastName\":\"Knight\",\"component\":\"author\",\"firstName\":\"Steve\"},\"slug\":\"steve-knight\",\"full_slug\":\"authors/steve-knight\",\"default_full_slug\":null,\"sort_by_date\":null,\"position\":-10,\"tag_list\":[],\"is_startpage\":false,\"parent_id\":15341338,\"meta_data\":null,\"group_id\":\"fea5b0d0-84f1-4431-b076-8f614e07f70c\",\"first_published_at\":\"2025-10-13T09:48:57.224Z\",\"release_id\":null,\"lang\":\"default\",\"path\":null,\"translated_slugs\":[]},\"category\":{\"name\":\"Product\",\"created_at\":\"2020-07-13T12:39:26.719Z\",\"published_at\":\"2020-07-13T12:39:36.167Z\",\"alternates\":[],\"id\":15352873,\"uuid\":\"03de4af2-4a3a-4050-8016-a67a41f95fe3\",\"content\":{\"_uid\":\"1afa0923-0468-4f0a-a81b-e18c245bbe48\",\"component\":\"blogCategory\"},\"slug\":\"product\",\"full_slug\":\"blog/category/product\",\"default_full_slug\":null,\"sort_by_date\":null,\"position\":-10,\"tag_list\":[],\"is_startpage\":false,\"parent_id\":15352558,\"meta_data\":null,\"group_id\":\"541e194d-ccb3-423b-b004-1af4fa55c548\",\"first_published_at\":\"2020-07-13T12:39:36.167Z\",\"release_id\":null,\"lang\":\"default\",\"path\":null,\"translated_slugs\":[]},\"featured\":false,\"component\":\"blogPost\",\"gridImage\":{\"id\":156940534881664,\"alt\":\"\",\"name\":\"\",\"focus\":\"\",\"title\":\"\",\"source\":\"\",\"filename\":\"https://a.storyblok.com/f/79904/3125x1592/9c071be8de/sld-grid-image-01.png\",\"copyright\":\"\",\"fieldtype\":\"asset\",\"meta_data\":{},\"is_external_url\":false},\"customTitle\":\"Sertus Smoke Control Damper (SLD) sets new benchmark for BS 9991:2024 smoke control compliance\",\"minutesToRead\":\"5\",\"seoDescription\":\"\",\"flexibleContent\":[{\"_uid\":\"34ebe0e3-d095-4167-9650-9633bd4697ab\",\"content\":{\"type\":\"doc\",\"content\":[{\"type\":\"heading\",\"attrs\":{\"level\":2,\"textAlign\":null},\"content\":[{\"text\":\"Updated certification positions Sertus smoke control damper among the few solutions able to meet the full performance intent of the latest residential fire safety standard. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"type\":\"hard_break\"},{\"text\":\"Sertus has announced updated certification for its \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\"SLD smoke control damper\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"/products/shaft-louvre-damper-sld\",\"uuid\":\"43c500a2-b5c8-4876-9073-52ec31b93fc9\",\"anchor\":null,\"target\":\"_self\",\"linktype\":\"story\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\", aligning the product with the performance expectations set out in the newly revised BS 9991:2024 standard. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"When the changes to BS 9991:2024 were introduced, Sertus proactively undertook additional fire and performance testing of the existing SLD product – without making any design modifications. The result: the SLD successfully met the enhanced performance requirements demanded by the updated standard. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"type\":\"image\",\"attrs\":{\"id\":156945489633009,\"alt\":\"\",\"src\":\"https://a.storyblok.com/f/79904/1468x1526/54995c590f/sld-2024_05_23-copy.jpg\",\"title\":\"\",\"source\":\"\",\"copyright\":\"\",\"meta_data\":{}}},{\"text\":\"This is critical for both new and existing projects. For customers, consultants and contractors who have already specified or installed the Sertus SLD, this updated certification provides reassurance that those installations remain compliant with BS 9991:2024. In short, no redesign, no replacement, no uncertainty – just verified performance aligned with current guidance. \",\"type\":\"text\"}]},{\"type\":\"heading\",\"attrs\":{\"level\":3,\"textAlign\":null},\"content\":[{\"text\":\"What’s changed and why it matters  \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"BS 9991:2024 reinforces and clarifies the requirements set out in Section F.5.5, removing ambiguity around how smoke control dampers should be tested, classified and specified within a system. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"While the principles have always existed, the updated standard is more explicit, closing potential loopholes and reducing the risk of non-compliant interpretations. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"Dampers are no longer treated as simple components – they are now expected to perform to the same standard as the fire-resisting elements they sit within, including compartment walls and smoke control ductwork. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"To meet the intent of the standard, dampers must now demonstrate: \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"Fire resistance classification (e.g. EI120) \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"Bidirectional fire performance (i<–>o) \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"Smoke leakage (S1000) \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"Operational reliability (C10,000 cycles) \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"All verified against recognised European standards including BS EN 12101-8, BS EN 1366-10 and EN 13501-4. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"type\":\"hard_break\"}]},{\"type\":\"heading\",\"attrs\":{\"level\":3,\"textAlign\":null},\"content\":[{\"text\":\"Fire resistance – What it actually means \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"Fire resistance is not a vague “fire rated” label – it is a measured, classified performance. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"In line with guidance from the Association for Specialist Fire Protection (ASFP) and industry bodies such as ADB (Approved Document B), fire resistance is defined using three key criteria: \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"E (Integrity):\",\"type\":\"text\",\"marks\":[{\"type\":\"bold\"}]},{\"text\":\" Prevents flames and hot gases passing through \",\"type\":\"text\"}]}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"I (Insulation):\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" Limits temperature rise on the non-fire side \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"(Optional) S (Smoke leakage):\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" Controls smoke passing through \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"Meeting all three of these criteria is critical for any passive fire safety product – including smoke control dampers. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"BS 9991 reinforces the importance of maintaining the fire performance of the compartmentation into which products are installed. Dampers must not weaken this barrier – they must preserve it. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"In reality, fire is an unpredictable, dynamic event. While modelling plays a role in system design, relying solely on theoretical scenarios to justify reduced performance introduces risk. The updated BS 9991 guidance helps remove this ambiguity, making expectations around product classification clearer and more robust. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"type\":\"image\",\"attrs\":{\"id\":156950240608409,\"alt\":\"\",\"src\":\"https://a.storyblok.com/f/79904/1776x431/e42b058200/sld-warning-01.png\",\"title\":\"\",\"source\":\"\",\"copyright\":\"\",\"meta_data\":{}}},{\"type\":\"image\",\"attrs\":{\"id\":156940534881664,\"alt\":\"\",\"src\":\"https://a.storyblok.com/f/79904/3125x1592/9c071be8de/sld-grid-image-01.png\",\"title\":\"\",\"source\":\"\",\"copyright\":\"\",\"meta_data\":{}}}]},{\"type\":\"heading\",\"attrs\":{\"level\":3,\"textAlign\":null},\"content\":[{\"text\":\"The Sertus SLD – Proven against the toughest criteria\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}},{\"type\":\"bold\"}]},{\"text\":\"  \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]},{\"text\":\" \",\"type\":\"text\"},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"The updated certification confirms that the \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\"Sertus SLD damper\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"/products/shaft-louvre-damper-sld\",\"uuid\":\"43c500a2-b5c8-4876-9073-52ec31b93fc9\",\"anchor\":null,\"target\":\"_self\",\"linktype\":\"story\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" achieves: \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"EI120 fire resistance\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"S1000 low leakage classification\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"C10,000 operational reliability\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"Bidirectional fire exposure (i<–>o)\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"These are the performance benchmarks specifiers and regulators should now demand as standard. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"Steve Knight, Technical Director at Sertus, said:\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"blockquote\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"The key change is that dampers must now demonstrate performance across several classifications, including fire resistance, leakage and operational durability.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"italic\"}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"type\":\"hard_break\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\"Achieving EI120, S1000 and C10,000 - while also proving performance from both fire directions – is technically demanding. Our updated certification confirms that the SLD has been tested and classified to meet these expectations.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"italic\"}]}]}]},{\"type\":\"heading\",\"attrs\":{\"level\":3,\"textAlign\":null},\"content\":[{\"text\":\"A clear message to the industry: Know what to look for    \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]},{\"text\":\" \",\"type\":\"text\"},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"It’s important to recognise that not all dampers on the market are currently able to demonstrate compliance with these requirements. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"If you are reviewing products for Gateway submissions, technical documentation or compliance checks, these are the classifications you should be actively looking for: \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"EI classification (e.g. EI120)\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" – not just “fire rated” \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"Smoke leakage (minimum S1000)\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"Reliability classification (C10,000 cycles)\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"Bidirectional fire testing (i<–>o)\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"Tested to BS EN 12101-8 and BS EN 1366-10\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"If a manufacturer cannot clearly demonstrate all of the above with test evidence and classification reports, then the product is unlikely to meet the intent of BS 9991:2024. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"type\":\"image\",\"attrs\":{\"id\":156958461826123,\"alt\":\"\",\"src\":\"https://a.storyblok.com/f/79904/1776x905/a9698c1159/sld-bs-9991-01.png\",\"title\":\"\",\"source\":\"\",\"copyright\":\"\",\"meta_data\":{}}}]},{\"type\":\"heading\",\"attrs\":{\"level\":3,\"textAlign\":null},\"content\":[{\"text\":\"Confidence for Specifiers, Contractors and Building Owners     \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]},{\"text\":\" \",\"type\":\"text\"},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"Richard White, Commercial Director at Sertus, said: \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]}]},{\"type\":\"blockquote\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"The update to BS 9991 is a significant moment for the smoke control sector. For the first time the standard clearly sets out how smoke control dampers should perform within a system. Our updated certification shows that the Sertus SLD fully aligns with these requirements, giving consultants and contractors confidence they are specifying a solution that meets the intent of the new guidance.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"italic\"}]}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"For installers and contractors, the benefit is straightforward: a clearly tested, fully classified solution that simplifies compliance. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":\"left\"},\"content\":[{\"text\":\"For building owners and asset managers, it delivers something even more important – confidence that both new and existing installations are aligned with current fire safety expectations. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]},\"component\":\"richTextContent\"},{\"_uid\":\"03ff6580-0eaf-4dcc-a8c7-4f9466e780cf\",\"text\":\"Speak directly with our technical team for guidance on damper specification, compliance requirements and system design. We’ll help you ensure your project aligns with the latest standards – with confidence.\",\"title\":\"Unsure whether your smoke control strategy meets BS 9991:2024?\",\"button\":[{\"_uid\":\"a7140874-9a2d-440e-86fc-818bafed126b\",\"link\":{\"id\":\"207a5f1f-6e4a-4d00-b471-e849cf3a2634\",\"url\":\"\",\"linktype\":\"story\",\"fieldtype\":\"multilink\",\"cached_url\":\"contact/\"},\"children\":\"Book a Discovery Meeting\",\"component\":\"ctaButton\"}],\"component\":\"bannerWithCta\",\"backgroundImage\":{\"id\":108804419355033,\"alt\":\"\",\"name\":\"\",\"focus\":\"\",\"title\":\"\",\"source\":\"\",\"filename\":\"https://a.storyblok.com/f/79904/3000x1084/8d2064d3b4/cta-banner.png\",\"copyright\":\"\",\"fieldtype\":\"asset\",\"meta_data\":{},\"is_external_url\":false}},{\"_uid\":\"35c0015a-9c47-4810-aea3-fb63817772e3\",\"content\":{\"type\":\"doc\",\"content\":[{\"type\":\"heading\",\"attrs\":{\"level\":5,\"textAlign\":null},\"content\":[{\"text\":\"About Sertus\",\"type\":\"text\"}]},{\"type\":\"heading\",\"attrs\":{\"level\":6,\"textAlign\":null},\"content\":[{\"text\":\"Sertus is a UK-based manufacturer of smoke ventilation products, dedicated to safeguarding lives and property through unequivocally compliant, expertly engineered, and reliably manufactured solutions. Driven by our vision to be the UK’s manufacturer of choice for smoke ventilation, we’re setting the standard – leading, not following – with products that combine innovation, performance, and quality. From early-stage design through to post-install support, we partner with contractors, architects, consultants, and developers to deliver smoke ventilation that works – every time.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]}]},{\"type\":\"heading\",\"attrs\":{\"level\":6,\"textAlign\":null},\"content\":[{\"text\":\"At Sertus, Make It Simple isn’t just a tagline – it’s our promise. We simplify the complex world of fire safety through intelligent design, clear guidance, and comprehensive support, helping our customers achieve compliant, high-performance buildings with confidence.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]}]},{\"type\":\"heading\",\"attrs\":{\"level\":6,\"textAlign\":null},\"content\":[{\"text\":\"Learn more at \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\"sertus.uk\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://www.sertus.uk\",\"uuid\":null,\"anchor\":null,\"target\":\"_new\",\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\". For media enquiries, contact \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\"hello@sertus.uk\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"mailto:hello@sertus.uk\",\"uuid\":null,\"anchor\":null,\"target\":null,\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" or call 01483 269999.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]}]}]},\"component\":\"richTextContent\"}],\"relatedArticles\":[{\"_uid\":\"e9e3c9b2-4aaf-4cd3-a5e6-a51be0eeb871\",\"link\":{\"name\":\"Navigating smoke shaft construction: Materials and smoke control damper compliance\",\"created_at\":\"2025-11-11T15:45:36.283Z\",\"published_at\":\"2025-11-26T11:03:08.887Z\",\"alternates\":[],\"id\":111355233525457,\"uuid\":\"8e631364-5f5d-4709-8841-0cd0b476d1ed\",\"content\":{\"_uid\":\"7272b370-27ef-42f5-89d7-197e3c8be30f\",\"image\":{\"id\":113727417389370,\"alt\":\"\",\"name\":\"\",\"focus\":\"\",\"title\":\"\",\"source\":\"\",\"filename\":\"https://a.storyblok.com/f/79904/1200x675/3e688ca5d6/1737034937057.jpeg\",\"copyright\":\"\",\"fieldtype\":\"asset\",\"meta_data\":{},\"is_external_url\":false},\"intro\":\"The Building Safety Act continues to shape how we achieve compliance in the fire safety industry, with the construction of vertical smoke shafts coming increasingly under the spotlight.\",\"author\":\"f937bef2-8afe-47d9-ae9e-1ad7cd362581\",\"category\":\"b4705651-1cc9-4a12-8af3-dee1636c0937\",\"featured\":false,\"component\":\"blogPost\",\"gridImage\":{\"id\":113727417389370,\"alt\":\"\",\"name\":\"\",\"focus\":\"\",\"title\":\"\",\"source\":\"\",\"filename\":\"https://a.storyblok.com/f/79904/1200x675/3e688ca5d6/1737034937057.jpeg\",\"copyright\":\"\",\"fieldtype\":\"asset\",\"meta_data\":{},\"is_external_url\":false},\"customTitle\":\"Navigating smoke shaft construction: Materials and smoke control damper compliance\",\"minutesToRead\":\"2\",\"seoDescription\":\"\",\"flexibleContent\":[{\"_uid\":\"34ebe0e3-d095-4167-9650-9633bd4697ab\",\"content\":{\"type\":\"doc\",\"content\":[{\"type\":\"heading\",\"attrs\":{\"level\":2,\"textAlign\":null},\"content\":[{\"text\":\"The Building Safety Act continues to shape how we achieve compliance in the fire safety industry, with the construction of vertical smoke shafts coming increasingly under the spotlight. Various options are available, and all have their own nuances when it comes to specifying the correct smoke control damper – this is why early discussions around smoke shaft construction are essential to ensure the damper specified is both compatible and compliant.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"type\":\"hard_break\"}]},{\"type\":\"heading\",\"attrs\":{\"level\":3,\"textAlign\":null},\"content\":[{\"text\":\"Five core types of smoke shaft construction\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#AC6464\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"The solutions available for smoke shaft construction is varied and far reaching, so we’ve simplified it into 5 core construction types: \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"bullet_list\",\"content\":[{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"Flexible dry-lined walls \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]},{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"Blockwork / Concrete walls \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]},{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"Metal ducted shaft \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]},{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"Calcium Silicate ducted shaft \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]},{\"type\":\"list_item\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"Prefabricated panel systems \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"heading\",\"attrs\":{\"level\":3,\"textAlign\":null},\"content\":[{\"text\":\"Demonstrating compliance through proven performance\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"There are multiple factors that demonstrate the inherent compliance of each solution. To satisfy the design traceability demanded by the \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\"Building Safety Act\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://www.legislation.gov.uk/ukpga/2022/30/contents\",\"uuid\":null,\"anchor\":null,\"target\":\"_self\",\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\", proven performance needs to be demonstrated – when considering smoke shafts, we can look at smoke leakage as a key performance measure regarding its suitability. If a construction type is missing any smoke leakage data it can be demonstrated with testing on site, otherwise third-party testing can prove compliance (look for \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\"EN 1366-8\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://knowledge.bsigroup.com/products/fire-resistance-tests-for-service-installations-smoke-extraction-ducts-1\",\"uuid\":null,\"anchor\":null,\"target\":\"_self\",\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" for multiple compartment smoke control ducts). There are also multiple requirements clearly laid out in the design standards (\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\"Approved Document B\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://www.gov.uk/government/publications/fire-safety-approved-document-b\",\"uuid\":null,\"anchor\":null,\"target\":\"_self\",\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\", \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\"BS 9999:2017\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://knowledge.bsigroup.com/products/fire-safety-in-the-design-management-and-use-of-buildings-code-of-practice\",\"uuid\":null,\"anchor\":null,\"target\":\"_self\",\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" and \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\"BS 9991:2024\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://knowledge.bsigroup.com/products/fire-safety-in-the-design-management-and-use-of-residential-buildings-code-of-practice-2\",\"uuid\":null,\"anchor\":null,\"target\":\"_self\",\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\") such as being made of A1 fire-resistant materials and protecting vertical compartmentation.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]},{\"text\":\".\",\"type\":\"text\"},{\"type\":\"hard_break\"}]},{\"type\":\"heading\",\"attrs\":{\"level\":3,\"textAlign\":null},\"content\":[{\"text\":\"Compliance risks across different shaft types\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"The infographic below highlights the compliance risks and considerations associated with each smoke shaft construction method.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]}]},{\"type\":\"heading\",\"attrs\":{\"level\":3,\"textAlign\":null},\"content\":[{\"type\":\"image\",\"attrs\":{\"id\":113735547679655,\"alt\":\"\",\"src\":\"https://a.storyblok.com/f/79904/2667x1994/9e48e773e3/compliance-matrix.png\",\"title\":\"\",\"source\":\"\",\"copyright\":\"\",\"meta_data\":{}}}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"heading\",\"attrs\":{\"level\":3,\"textAlign\":null},\"content\":[{\"text\":\"How shaft design influences damper selection\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"Whilst deciding the correct smoke shaft construction, it’s critical to remember to overlay the implications it makes on the selection of the smoke control damper. Each structure will have different testing requirements for the smoke control damper, so being aware of the spatial implications, tolerances and buildability to achieve compliance in each shaft construction will inform the best option for each project.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]}]},{\"type\":\"blockquote\",\"content\":[{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"The right shaft decision leads to the right smoke control damper solution.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}},{\"type\":\"italic\"}]}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"heading\",\"attrs\":{\"level\":3,\"textAlign\":null},\"content\":[{\"text\":\"Early collaboration delivers better compliance\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"As a market-leading manufacturer of smoke control dampers, Sertus recognises the critical importance of early-stage design decisions around smoke shaft construction. That’s why we’re committed to supporting these conversations from the outset – ensuring that the solutions we offer not only meet compliance requirements but also simplify damper selection later in the design process.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#000000\"}}]}]},{\"type\":\"horizontal_rule\"},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"heading\",\"attrs\":{\"level\":3,\"textAlign\":null},\"content\":[{\"text\":\"Ready to get smoke shaft compliance right from the start? \",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://sertus.uk/contact/?form=general-enquiries\",\"uuid\":null,\"anchor\":null,\"target\":\"_self\",\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#666666\"}}]},{\"type\":\"hard_break\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://sertus.uk/contact/?form=general-enquiries\",\"uuid\":null,\"anchor\":null,\"target\":\"_self\",\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#666666\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"Talk to our team about aligning shaft construction and smoke control damper selection early – and make compliance simple with Sertus.\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://sertus.uk/contact/?form=general-enquiries\",\"uuid\":null,\"anchor\":null,\"target\":\"_self\",\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"#666666\"}},{\"type\":\"italic\"}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"horizontal_rule\"},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"heading\",\"attrs\":{\"level\":5,\"textAlign\":null},\"content\":[{\"text\":\"About Sertus\",\"type\":\"text\"}]},{\"type\":\"heading\",\"attrs\":{\"level\":6,\"textAlign\":null},\"content\":[{\"text\":\"Sertus is a UK-based manufacturer of smoke ventilation products, dedicated to safeguarding lives and property through unequivocally compliant, expertly engineered, and reliably manufactured solutions. Driven by our vision to be the UK’s manufacturer of choice for smoke ventilation, we’re setting the standard – leading, not following – with products that combine innovation, performance, and quality. From early-stage design through to post-install support, we partner with contractors, architects, consultants, and developers to deliver smoke ventilation that works – every time.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]}]},{\"type\":\"heading\",\"attrs\":{\"level\":6,\"textAlign\":null},\"content\":[{\"text\":\"At Sertus, Make It Simple isn’t just a tagline – it’s our promise. We simplify the complex world of fire safety through intelligent design, clear guidance, and comprehensive support, helping our customers achieve compliant, high-performance buildings with confidence.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]}]},{\"type\":\"heading\",\"attrs\":{\"level\":6,\"textAlign\":null},\"content\":[{\"text\":\"Learn more at \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\"sertus.uk\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://www.sertus.uk\",\"uuid\":null,\"anchor\":null,\"target\":\"_new\",\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\". For media enquiries, contact \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\"hello@sertus.uk\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"mailto:hello@sertus.uk\",\"uuid\":null,\"anchor\":null,\"target\":null,\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]},{\"text\":\" or call 01483 269999.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]}]}]},\"component\":\"richTextContent\"}],\"relatedArticles\":[{\"_uid\":\"e9e3c9b2-4aaf-4cd3-a5e6-a51be0eeb871\",\"link\":\"0f472412-837f-4633-b057-5e37de219042\",\"component\":\"blogRelatedPost\"},{\"_uid\":\"aad35338-f4ea-49e8-ade5-786bba2de301\",\"link\":\"aeb397e3-82a9-4e09-9f5c-5c8d3b336024\",\"component\":\"blogRelatedPost\"},{\"_uid\":\"b681bb6a-5873-482b-b603-66c15b923328\",\"link\":\"cb1cc963-9f6e-47d6-8473-3845b29abb5f\",\"component\":\"blogRelatedPost\"}],\"seoSharingImage\":{\"id\":null,\"alt\":null,\"name\":\"\",\"focus\":null,\"title\":null,\"source\":null,\"filename\":\"\",\"copyright\":null,\"fieldtype\":\"asset\",\"meta_data\":{}},\"relatedArticleParagraph\":\"\"},\"slug\":\"navigating-smoke-shaft-construction\",\"full_slug\":\"blog/navigating-smoke-shaft-construction\",\"default_full_slug\":null,\"sort_by_date\":null,\"position\":-60,\"tag_list\":[],\"is_startpage\":false,\"parent_id\":15341219,\"meta_data\":null,\"group_id\":\"5ba05261-a2e5-448d-80df-d24f2a762eb1\",\"first_published_at\":\"2025-11-06T10:17:00.000Z\",\"release_id\":null,\"lang\":\"default\",\"path\":null,\"translated_slugs\":[]},\"component\":\"blogRelatedPost\"},{\"_uid\":\"aad35338-f4ea-49e8-ade5-786bba2de301\",\"link\":{\"name\":\"What is the correct construction for smoke shafts? \",\"created_at\":\"2025-07-24T10:30:27.111Z\",\"published_at\":\"2025-11-26T11:17:30.467Z\",\"alternates\":[],\"id\":72349397477501,\"uuid\":\"cd6e5ceb-68c7-4c4c-9641-0e3117eebb49\",\"content\":{\"_uid\":\"7272b370-27ef-42f5-89d7-197e3c8be30f\",\"image\":{\"id\":72753044357979,\"alt\":\"\",\"name\":\"\",\"focus\":\"\",\"title\":\"\",\"source\":\"\",\"filename\":\"https://a.storyblok.com/f/79904/1500x764/9d04ae0d44/20250703_140237.jpg\",\"copyright\":\"\",\"fieldtype\":\"asset\",\"meta_data\":{},\"is_external_url\":false},\"intro\":\"In May 2024, the SCA released a guidance document that proposed only using EN1366-8 tested ducts for smoke control shafts, which in turn prohibits the use of gypsum-based shaft wall constructions for the application in a vertical smoke shaft.\",\"author\":\"f937bef2-8afe-47d9-ae9e-1ad7cd362581\",\"category\":\"b4705651-1cc9-4a12-8af3-dee1636c0937\",\"featured\":false,\"component\":\"blogPost\",\"gridImage\":{\"id\":72753044357979,\"alt\":\"\",\"name\":\"\",\"focus\":\"\",\"title\":\"\",\"source\":\"\",\"filename\":\"https://a.storyblok.com/f/79904/1500x764/9d04ae0d44/20250703_140237.jpg\",\"copyright\":\"\",\"fieldtype\":\"asset\",\"meta_data\":{},\"is_external_url\":false},\"customTitle\":\"What is the correct construction for smoke shafts? \",\"minutesToRead\":\"5\",\"seoDescription\":\"\",\"flexibleContent\":[{\"_uid\":\"34ebe0e3-d095-4167-9650-9633bd4697ab\",\"content\":{\"type\":\"doc\",\"content\":[{\"type\":\"heading\",\"attrs\":{\"level\":2,\"textAlign\":null},\"content\":[{\"text\":\"In May 2024, the SCA released a \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\"guidance document\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://www.smokecontrol.org.uk/resources\",\"uuid\":null,\"anchor\":null,\"target\":\"_self\",\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" that proposed only using EN1366-8 tested ducts for smoke control shafts, which in turn prohibits the use of gypsum-based shaft\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" wall constructions for the application in a vertical smoke shaft.\",\"type\":\"text\"},{\"text\":\" This was further reinforced by the ASFP, who released their \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\"Advisory Note 36\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://asfp.org.uk/page/ASFPTechnicalDocuments\",\"uuid\":null,\"anchor\":null,\"target\":\"_self\",\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" in March of 2025, confirming that materials and products used for smoke control shafts should be tested to the standards outlined in EN12101-7, with the only\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"black\"}}]},{\"text\":\"satisfactory\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" alternative \",\"type\":\"text\"},{\"text\":\"to this being\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]},{\"text\":\" a fully enclosed blockwork or concrete shaft lined for air leakage\",\"type\":\"text\"},{\"text\":\". \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"This presented major challenges due to the changes required to the universally accepted methods of construction for smoke control shafts in the construction industry. The normal ‘Shaftwall’ solution is no longer allowable because of it not being a proven or tested product when used in a pressured system, and therefore the original benefit to this system of being “easier and safer to install” is completely out of the window. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"In light of these challenges, over the last 12 months we have seen a migration over to a blockwork wall being the preferred solution for vertical smoke control shafts; it has the benefit of maintaining a dry-fit installation (similar to a Shaftwall solution), utilising trades on site that are already present, and with minimal impact on product classification and added compliance complexity. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"The original proposition from the SCA guidance to utilise fully compliant smoke control duct is still a topic of major deliberation for new projects. The significant change to existing construction methods, complex and restrictive compliance options, and unproven commercial implications have meant there remains some uncertainty around the best implementation of a tested EN1366-8 smoke control duct. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null},\"content\":[{\"text\":\"If you consider this challenge on top of the changes resulting from the Building Safety Act 2022, the changes from single to two-stair buildings and the updates in the BS9991:2024 amendment, it’s clear to see why we’ve seen such an increase in early engagement for multi-storey residential and commercial projects, and more specifically around the application of smoke control dampers into shafts. \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}}]}]},{\"type\":\"horizontal_rule\"},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"heading\",\"attrs\":{\"level\":3,\"textAlign\":null},\"content\":[{\"text\":\"Get in touch to discuss how Sertus can support you with your project\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"hello@sertus.uk\",\"uuid\":null,\"anchor\":null,\"target\":\"_self\",\"linktype\":\"email\"}}]}]},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"horizontal_rule\"},{\"type\":\"paragraph\",\"attrs\":{\"textAlign\":null}},{\"type\":\"heading\",\"attrs\":{\"level\":5,\"textAlign\":null},\"content\":[{\"text\":\"About Sertus \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"\"}},{\"type\":\"bold\"}]}]},{\"type\":\"heading\",\"attrs\":{\"level\":6,\"textAlign\":null},\"content\":[{\"text\":\"Sertus is a UK-based manufacturer of smoke ventilation products, dedicated to safeguarding lives and property through unequivocally compliant, expertly engineered, and reliably manufactured solutions. Driven by our vision to be the UK’s manufacturer of choice for smoke ventilation, we’re setting the standard – leading, not following – with products that combine innovation, performance, and quality. From early-stage design through to post-install support, we partner with contractors, architects, consultants, and developers to deliver smoke ventilation that works – every time.\",\"type\":\"text\",\"marks\":[{\"type\":\"bold\"}]}]},{\"type\":\"heading\",\"attrs\":{\"level\":6,\"textAlign\":null},\"content\":[{\"text\":\"At Sertus, Make It Simple isn’t just a tagline – it’s our promise. We simplify the complex world of fire safety through intelligent design, clear guidance, and comprehensive support, helping our customers achieve compliant, high-performance buildings with confidence.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"black\"}},{\"type\":\"bold\"}]}]},{\"type\":\"heading\",\"attrs\":{\"level\":6,\"textAlign\":null},\"content\":[{\"text\":\"Learn more at \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"black\"}},{\"type\":\"bold\"}]},{\"text\":\"sertus.uk\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://www.sertus.uk\",\"uuid\":null,\"anchor\":null,\"target\":\"_new\",\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"black\"}},{\"type\":\"bold\"},{\"type\":\"underline\"}]},{\"text\":\". For media enquiries, contact \",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"black\"}},{\"type\":\"bold\"}]},{\"text\":\"hello@sertus.uk\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"mailto:hello@sertus.uk\",\"uuid\":null,\"anchor\":null,\"target\":null,\"linktype\":\"url\"}},{\"type\":\"textStyle\",\"attrs\":{\"color\":\"black\"}},{\"type\":\"bold\"},{\"type\":\"underline\"}]},{\"text\":\" or call 01483 269999.\",\"type\":\"text\",\"marks\":[{\"type\":\"textStyle\",\"attrs\":{\"color\":\"black\"}},{\"type\":\"bold\"}]}]}]},\"component\":\"richTextContent\"}],\"relatedArticles\":[{\"_uid\":\"e9e3c9b2-4aaf-4cd3-a5e6-a51be0eeb871\",\"link\":\"c14aee56-9eb1-40fd-8caf-596fa6b762ea\",\"component\":\"blogRelatedPost\"},{\"_uid\":\"aad35338-f4ea-49e8-ade5-786bba2de301\",\"link\":\"efaeab9f-5314-40f0-84d3-8c918a61a41a\",\"component\":\"blogRelatedPost\"},{\"_uid\":\"b681bb6a-5873-482b-b603-66c15b923328\",\"link\":\"dfa09e34-8380-461c-b942-9fcfcba66ced\",\"component\":\"blogRelatedPost\"}],\"seoSharingImage\":{\"id\":null,\"alt\":null,\"name\":\"\",\"focus\":null,\"title\":null,\"source\":null,\"filename\":\"\",\"copyright\":null,\"fieldtype\":\"asset\",\"meta_data\":{}},\"relatedArticleParagraph\":\"\"},\"slug\":\"what-is-the-correct-construction-for-smoke-shafts\",\"full_slug\":\"blog/what-is-the-correct-construction-for-smoke-shafts\",\"default_full_slug\":null,\"sort_by_date\":null,\"position\":80,\"tag_list\":[],\"is_startpage\":false,\"parent_id\":15341219,\"meta_data\":null,\"group_id\":\"006b9dd1-1651-4e9f-9bc2-3ba7f5e5c82e\",\"first_published_at\":\"2025-07-28T07:51:30.113Z\",\"release_id\":null,\"lang\":\"default\",\"path\":null,\"translated_slugs\":[]},\"component\":\"blogRelatedPost\"},{\"_uid\":\"b681bb6a-5873-482b-b603-66c15b923328\",\"link\":{\"name\":\"What should the fire rating of a smoke shaft be?\",\"created_at\":\"2022-09-23T06:57:53.051Z\",\"published_at\":\"2022-10-12T14:25:40.548Z\",\"alternates\":[],\"id\":193216169,\"uuid\":\"da4ca923-2fb3-421b-a99c-3f4a6a342ab5\",\"content\":{\"_uid\":\"d3e5eda7-664f-4912-b7c9-47393b4d98a5\",\"image\":{\"id\":5920721,\"alt\":\"\",\"name\":\"\",\"focus\":null,\"title\":\"\",\"filename\":\"https://a.storyblok.com/f/79904/6000x3376/a7479fd92d/nejc-soklic-xxp9rthtqcc-unsplash.jpg\",\"copyright\":\"\",\"fieldtype\":\"asset\"},\"intro\":\"Smoke shafts are a crucial part of smoke ventilation systems, and a question we frequently receive is: what should the fire rating of a smoke shaft be? Documentation is the first place to look.\",\"author\":\"fe9ac716-c424-41d1-b7d8-111702e26e97\",\"category\":\"d5249d9e-62f9-4312-a8c3-0efd726bbefd\",\"featured\":true,\"component\":\"blogPost\",\"gridImage\":{\"id\":5920721,\"alt\":\"\",\"name\":\"\",\"focus\":\"\",\"title\":\"\",\"filename\":\"https://a.storyblok.com/f/79904/6000x3376/a7479fd92d/nejc-soklic-xxp9rthtqcc-unsplash.jpg\",\"copyright\":\"\",\"fieldtype\":\"asset\",\"is_external_url\":false},\"customTitle\":\"What should the fire rating of a smoke shaft be?\",\"minutesToRead\":\"2\",\"seoDescription\":\"\",\"flexibleContent\":[{\"_uid\":\"c136ddde-13e0-4931-acf8-146b40cdd6df\",\"content\":{\"type\":\"doc\",\"content\":[{\"type\":\"paragraph\",\"content\":[{\"text\":\"Smoke shafts are a crucial part of smoke ventilation systems, and a question we frequently receive is: what should the fire rating of a smoke shaft be? Documentation is the first place to look.\",\"type\":\"text\"},{\"type\":\"hard_break\"}]},{\"type\":\"heading\",\"attrs\":{\"level\":1},\"content\":[{\"type\":\"hard_break\"},{\"text\":\"Approved Document B\",\"type\":\"text\"},{\"type\":\"hard_break\"}]},{\"type\":\"paragraph\",\"content\":[{\"type\":\"hard_break\"},{\"text\":\"Starting with the fire rating of the materials that smoke shafts are made from, Approved Document B section 3.51 part 3 states:\",\"type\":\"text\"},{\"type\":\"hard_break\"},{\"type\":\"hard_break\"},{\"text\":\"“The smoke shaft should be constructed from a class A1 material.” With Class A1 materials defined as “Materials that cannot contribute to a fire at any stage, including a fully developed fire, can be awarded Class A1”.\",\"type\":\"text\"}]},{\"type\":\"heading\",\"attrs\":{\"level\":1},\"content\":[{\"text\":\"SCA Guide\",\"type\":\"text\"},{\"type\":\"hard_break\"}]},{\"type\":\"paragraph\",\"content\":[{\"type\":\"hard_break\"},{\"text\":\"The SCA Guide aligns with Approved Document B’s sentiments, stating in section 6.4.1:\",\"type\":\"text\"},{\"type\":\"hard_break\"}]},{\"type\":\"blockquote\",\"content\":[{\"type\":\"paragraph\",\"content\":[{\"text\":\"Smoke shafts should be constructed of non-combustible material.\",\"type\":\"text\"}]}]},{\"type\":\"heading\",\"attrs\":{\"level\":1},\"content\":[{\"text\":\"BS 9991\",\"type\":\"text\"}]},{\"type\":\"paragraph\",\"content\":[{\"type\":\"hard_break\"},{\"text\":\"BS 9991, Section H, part 14.2.3.2, elaborates on these definitions with: \",\"type\":\"text\"},{\"type\":\"hard_break\"}]},{\"type\":\"blockquote\",\"content\":[{\"type\":\"paragraph\",\"content\":[{\"text\":\"The smoke shaft should be constructed either of non-combustible materials conforming to BS 476-4 or of any material which, when tested in accordance with BS 476-11, does not flame or cause any rise in the temperature on either the centre of the specimen or the furnace thermocouples.\",\"type\":\"text\"}]}]},{\"type\":\"paragraph\"},{\"type\":\"heading\",\"attrs\":{\"level\":1},\"content\":[{\"text\":\"Class A1 Materials\",\"type\":\"text\"}]},{\"type\":\"paragraph\",\"content\":[{\"type\":\"hard_break\"},{\"text\":\"These documents offer conclusive evidence that smoke shafts must not add to the effects of a fire in any way and must be constructed out of materials which meet the fire rating of Class A1. Class A1 materials are materials which have been given a ‘non-combustible’ seal of approval and can vary from concrete to A1 rated plasterboard among many other fire resistant materials.\",\"type\":\"text\"},{\"type\":\"hard_break\"},{\"type\":\"hard_break\"}]},{\"type\":\"heading\",\"attrs\":{\"level\":1},\"content\":[{\"text\":\"Fire Resistance Requirements\",\"type\":\"text\"}]},{\"type\":\"paragraph\",\"content\":[{\"type\":\"hard_break\"},{\"text\":\"With the combustibility of the material a smoke shaft should be made from now confirmed, required fire resistance needs to be understood. Approved Document B defines fire resistance by saying it is: \",\"type\":\"text\"},{\"type\":\"hard_break\"}]},{\"type\":\"blockquote\",\"content\":[{\"type\":\"paragraph\",\"content\":[{\"text\":\"Measured in minutes. This relates to time elapsed in a standard test and should not be confused with real time.\",\"type\":\"text\"}]}]},{\"type\":\"paragraph\",\"content\":[{\"type\":\"hard_break\"},{\"text\":\"Revisiting section 6.4.1 of the SCA Guide, it states: \",\"type\":\"text\"},{\"type\":\"hard_break\"}]},{\"type\":\"blockquote\",\"content\":[{\"type\":\"paragraph\",\"content\":[{\"text\":\"The fire resistance of the shaft should be equivalent to the requirements of the elements of the structure through which it passes.\",\"type\":\"text\"}]}]},{\"type\":\"paragraph\",\"content\":[{\"type\":\"hard_break\"},{\"text\":\"The guide then goes on to say: \",\"type\":\"text\"},{\"type\":\"hard_break\"}]},{\"type\":\"blockquote\",\"content\":[{\"type\":\"paragraph\",\"content\":[{\"text\":\"The fire rating of the vent should be equivalent to that of the smoke shaft or at least 60 minutes. This is to ensure that the fire resistance of the smoke shaft is maintained when the vent on the floor of fire origin is in the open position.\",\"type\":\"text\"}]}]},{\"type\":\"paragraph\",\"content\":[{\"type\":\"hard_break\"}]},{\"type\":\"heading\",\"attrs\":{\"level\":1},\"content\":[{\"text\":\"Summary\",\"type\":\"text\"}]},{\"type\":\"paragraph\",\"content\":[{\"type\":\"hard_break\"},{\"text\":\"Table 4 from BS 9991 offers guidance on the fire resistance of elements of structure, e.g. floors. For buildings of 5m, it requires 30 minutes, for buildings between 5 and 18 metres, 60 minutes, for those over 18 metres, 60 minutes and for those over 30 metres, 120 minutes.  This concludes that the smoke shaft should either be 60 or 120 minute fire rated, depending on the height of the building.\",\"type\":\"text\"}]},{\"type\":\"paragraph\",\"content\":[{\"type\":\"hard_break\"},{\"text\":\"Hopefully this answers the question of the fire rating of a smoke shaft, if you have any further knowledge on this topic please don’t hesitate to \",\"type\":\"text\"},{\"text\":\"contact us\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://sertus.uk/contact/\",\"uuid\":null,\"anchor\":null,\"target\":null,\"linktype\":\"url\"}}]},{\"text\":\" and speak to our friendly team who will be happy to talk you through the options available. If you’d like to continue learning about smoke ventilation, you’ll find some helpful resources on our \",\"type\":\"text\"},{\"text\":\"blog\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://sertus.uk/blog/\",\"uuid\":null,\"anchor\":null,\"target\":null,\"linktype\":\"url\"}}]},{\"text\":\" and \",\"type\":\"text\"},{\"text\":\"YouTube\",\"type\":\"text\",\"marks\":[{\"type\":\"link\",\"attrs\":{\"href\":\"https://www.youtube.com/channel/UCDbL1Fd0322mc-c5Byan1cA\",\"uuid\":null,\"anchor\":null,\"target\":null,\"linktype\":\"url\"}}]},{\"text\":\" channel.\",\"type\":\"text\"}]}]},\"component\":\"richTextContent\"},{\"_uid\":\"583ce639-6c82-4c17-bfa2-e06c04f85b78\",\"title\":\"What should the fire rating of a smoke shaft be?\",\"subtitle\":\"\",\"component\":\"videoSplash\",\"videoLink\":\"https://youtu.be/8_6ig7Jr61k\",\"backgroundImage\":{\"id\":5921148,\"alt\":\"\",\"name\":\"\",\"focus\":null,\"title\":\"\",\"filename\":\"https://a.storyblok.com/f/79904/1280x720/94336db32d/yt-thumb.png\",\"copyright\":\"\",\"fieldtype\":\"asset\"}}],\"relatedArticles\":[],\"seoSharingImage\":{\"id\":null,\"alt\":null,\"name\":\"\",\"focus\":null,\"title\":null,\"filename\":\"\",\"copyright\":null,\"fieldtype\":\"asset\"},\"relatedArticleParagraph\":\"\"},\"slug\":\"what-should-the-fire-rating-of-a-smoke-shaft-be\",\"full_slug\":\"blog/what-should-the-fire-rating-of-a-smoke-shaft-be\",\"default_full_slug\":null,\"sort_by_date\":null,\"position\":250,\"tag_list\":[],\"is_startpage\":false,\"parent_id\":15341219,\"meta_data\":null,\"group_id\":\"59556194-b7af-4846-bcfa-b60d87cf5c92\",\"first_published_at\":\"2022-09-23T09:00:00.000Z\",\"release_id\":null,\"lang\":\"default\",\"path\":\"\",\"translated_slugs\":[]},\"component\":\"blogRelatedPost\"}],\"seoSharingImage\":{\"id\":null,\"alt\":null,\"name\":\"\",\"focus\":null,\"title\":null,\"source\":null,\"filename\":\"\",\"copyright\":null,\"fieldtype\":\"asset\",\"meta_data\":{}},\"relatedArticleParagraph\":\"\"}","is_startpage":false,"parent_id":15341219,"group_id":"dbe0f207-c00b-48d9-9551-202db7c2be43","first_published_at":"2026-03-20T12:26:21.276Z"},"uuid":"0bdef1ff-32ea-4c30-bcd9-67b7b2f52b42","searchData":{"products":[{"id":"storyblokentry-432584285-default","slug":"products/roof-single-leaf-rsl","title":"Single Leaf Vent | Glass","description":"A precision-engineered smoke and heat vent designed for stairwells and corridors, the Roof Single Leaf Vent | Glass provides fast, compliant smoke ventilation and natural daylight for protected escape routes. 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","description":"In May 2024, the SCA released a guidance document that proposed only using EN1366-8 tested ducts for smoke control shafts, which in turn prohibits the use of gypsum-based shaft wall constructions for the application in a vertical smoke shaft.","image":"https://a.storyblok.com/f/79904/1500x764/9d04ae0d44/20250703_140237.jpg","component":"blogPost"},{"id":"storyblokentry-74130904086044-default","slug":"blog/the-off-site-shift-how-uk-construction-is-changing","title":"The off-site shift: how UK construction is changing","description":"Industrialised construction is no longer just a talking point – it’s increasingly becoming a reality across UK projects.","image":"https://a.storyblok.com/f/79904/6911x4237/7c46343de0/img_2500.jpg","component":"blogPost"},{"id":"storyblokentry-555548047-default","slug":"blog/introducing-the-roof-enviro-module-rem-the-future-of-building-ventilation","title":"Introducing the Roof Enviro Module (REM): The future of building ventilation","description":"In today’s fast-paced world, the demand for efficient, reliable, and sustainable building systems has never been higher.","image":"https://a.storyblok.com/f/79904/4808x2598/a5fde7a00c/dscf6967-copy.jpg","component":"blogPost"},{"id":"storyblokentry-447409899-default","slug":"blog/the-brand-new-sertus-roof-single-leaf-smoke-vent","title":"The brand new Sertus Roof Single Leaf Smoke Vent - why it's the best product for your project...","description":"Hello and welcome to another blog from Sertus. 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