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Block","smoke-shaft-air-leakage-testing-first-time-pass-on-a-12-storey-residential-block","\u002Fcase-studies\u002Fsmoke-shaft-air-leakage-testing-first-time-pass-on-a-12-storey-residential-block",[44,102],{"name":45,"componentName":46,"cols":47,"colsMD":48,"customColSpan":8,"parentAlign":49,"bgImage":7,"inlineStyles":7,"bgColor":50,"group":51,"margin":7,"padding":7,"classes":52,"colSpan":7,"id":53,"originalModel":54,"borderWidth":94,"borderColor":95,"borderRadius":7,"paddingVertical":96,"blockTemplateId":97,"block_scope":98,"blockLabel":99,"blockDescription":7,"is_block":11,"paddingHorizontalSM":7,"paddingHorizontal":100,"sticky":8,"stickyTop":93,"stickyDisableSmall":8,"borderPosition":101},"Container","ColContainer","grid-cols-1","md:grid-cols-12","w-full","#ebf5f3","main","pattern_bg","f1bcde02-fe0a-4831-8ef7-833d9f4fbb17",[55],[56,62],{"colSpan":57,"colSpanSM":58,"colSpanMD":59,"colSpanLG":60,"customColSpan":8,"bgColor":7,"borderWidth":7,"borderColor":7,"borderRadius":7,"classes":7,"id":61,"borderPosition":7},"col-span-1","sm:col-span-12","md:col-span-12","lg:col-span-12","608d7c62-4a53-4ecd-90e5-9a4d00eaa4ad",{"name":63,"componentName":46,"nested":11,"cols":47,"colsMD":48,"customColSpan":8,"parentAlign":49,"bgImage":7,"inlineStyles":7,"bgColor":7,"group":64,"margin":7,"padding":7,"classes":7,"colSpan":7,"id":65,"originalModel":66,"borderWidth":7,"borderColor":7,"borderRadius":7,"containerWidth":92,"sticky":8,"stickyTop":93,"stickyDisableSmall":8,"borderPosition":7},"Nested Container","main_nested","877549aa-8bc7-474b-8261-ce43bdf39dfd",[67,83],[68,73],{"colSpan":57,"colSpanSM":69,"colSpanMD":70,"colSpanLG":71,"customColSpan":8,"bgColor":7,"borderWidth":7,"borderColor":7,"borderRadius":7,"classes":7,"id":72,"borderPosition":7},"sm:col-span-6","md:col-span-6","lg:col-span-6","f5aab5dd-4d72-423a-87fb-ae305112af49",{"name":74,"componentName":75,"group":76,"margin":7,"padding":7,"classes":7,"bgImage":7,"id":77,"originalModel":78},"WYSIWYG Editor","Wysiwyg","content","ee86e31b-348d-41ae-aea6-b0a20400b9d2",{"proseEnabled":8,"content":79,"lineHeightClass":80,"trackingClass":81,"spacingClass":82},"\u003Ch1 class=\"text-4xl md:text-5xl text-theme-dark-green font-medium mb-10 md:mb-0\" style=\"text-align: left;\">Smoke Shaft Air Leakage Testing: First-Time Pass on a 12 Storey Residential Block\u003C\u002Fh1>","leading-relaxed","tracking-normal","[&_p]:my-0 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\u003C!-- Image -->\n    \u003Cdiv class=\"relative ml-0 md:ml-10 mt-0 overflow-hidden rounded-2xl\">\n      \u003Cimg\n        src=\"{{feature_image}}\"\n        alt=\"Case study feature\"\n        class=\"block h-[260px] w-full object-cover\"\n      \u002F>\n    \u003C\u002Fdiv>\n  \u003C\u002Fdiv>\n\u003C\u002Fdiv>","max-w-6xl mx-auto",0,"border-2","05871b","py-16",12,"standard","Our Services - Green block with bg pattern","px-7","border-b",{"name":45,"componentName":46,"cols":47,"colsMD":48,"customColSpan":8,"parentAlign":49,"bgImage":7,"inlineStyles":7,"bgColor":7,"group":51,"margin":7,"padding":7,"classes":7,"colSpan":7,"id":103,"originalModel":104,"borderWidth":7,"borderColor":7,"borderRadius":7,"sticky":8,"stickyTop":93,"stickyDisableSmall":8,"paddingVertical":118,"borderPosition":7,"paddingHorizontal":119},"0634e860-5bb2-42de-aa57-b2272d325b7a",[105],[106,108],{"id":107,"colSpan":57,"colSpanSM":58,"colSpanMD":59,"colSpanLG":60,"customColSpan":8,"bgColor":7,"borderWidth":7,"borderColor":7,"borderRadius":7,"classes":7,"borderPosition":7},"769b7f36-06b0-4bcc-9fc7-b1935051d677",{"name":63,"componentName":46,"nested":11,"cols":47,"colsMD":48,"customColSpan":8,"parentAlign":49,"bgImage":7,"inlineStyles":7,"bgColor":7,"group":64,"margin":7,"padding":7,"classes":7,"colSpan":7,"id":109,"originalModel":110,"borderWidth":7,"borderColor":7,"borderRadius":7,"sticky":8,"stickyTop":93,"stickyDisableSmall":8,"containerWidth":92,"borderPosition":7},"e7c2eabd-f877-467a-89f0-aa8ef8b7f411",[111],[112,114],{"id":113,"colSpan":57,"colSpanSM":58,"colSpanMD":59,"colSpanLG":60,"customColSpan":8,"bgColor":7,"borderWidth":7,"borderColor":7,"borderRadius":7,"classes":7,"borderPosition":7},"c37da2da-dc4c-4238-938b-031fe5501f7d",{"name":74,"componentName":75,"group":76,"margin":7,"padding":7,"classes":7,"bgImage":7,"id":115,"originalModel":116},"30243da6-e294-4dbe-9226-f959bbb2a3d8",{"proseEnabled":11,"content":117,"lineHeightClass":80,"trackingClass":81,"spacingClass":82},"\u003Cdiv class=\"et_pb_column et_pb_column_2_3 et_pb_column_2_tb_body  et_pb_css_mix_blend_mode_passthrough\">\n\u003Cdiv class=\"et_pb_module et_pb_post_content et_pb_post_content_0_tb_body\">\n\u003Cdiv>\n\u003Ch2>\u003Cstrong>The Result\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cp>A 12‑storey residential block achieved a first‑time pass on smoke shaft air leakage testing because leakage routes were controlled \u003Cem>before\u003C\u002Fem> commissioning. ATSPACE completed a readiness review, carried out the smoke shaft leakage test to the project specification, and provided clear close‑out actions for minor issues. The smoke control commissioning stayed on programme and the fire engineer received clean evidence for sign‑off.\u003C\u002Fp>\n\u003Ch2>\u003Cstrong>Project Snapshot\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cp>\u003Cstrong>Service:\u003C\u002Fstrong> Smoke shaft air leakage testing\u003Cbr>\u003Cstrong>Client:\u003C\u002Fstrong> Main contractor delivering a high‑rise residential scheme\u003Cbr>\u003Cstrong>Site:\u003C\u002Fstrong> Albion Heights, 1 Meridian Square, Salford M5 3AD\u003Cbr>\u003Cstrong>Building type:\u003C\u002Fstrong> 12‑storey block with central corridor + smoke shaft\u003Cbr>\u003Cstrong>Smoke control:\u003C\u002Fstrong> Natural shaft with AOV & corridor vents, control interfaces\u003Cbr>\u003Cstrong>Programme stage:\u003C\u002Fstrong> Practical completion, commissioning phase\u003Cbr>\u003Cstrong>Compliance driver:\u003C\u002Fstrong> Building Regulations Part B + project fire strategy\u003Cbr>\u003Cstrong>ATSPACE delivery:\u003C\u002Fstrong> Readiness walkthrough, leakage testing, reporting, minor close‑out support\u003Cbr>\u003Cstrong>Engineers:\u003C\u002Fstrong> ATSPACE test engineer + compliance coordinator\u003C\u002Fp>\n\u003Ch2>\u003Cstrong>Why This Test Mattered on a 12‑Storey Block\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cp>Smoke shafts are unforgiving: on drawings they work; on site, leakage destroys performance.\u003C\u002Fp>\n\u003Cp>Leakage causes:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>insufficient airflow through the shaft\u003C\u002Fli>\n\u003Cli>corridor pressures that do not behave correctly\u003C\u002Fli>\n\u003Cli>commissioning loops, delays and retests\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>The contractor’s real risk:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>delayed smoke control commissioning\u003C\u002Fli>\n\u003Cli>programme slippage\u003C\u002Fli>\n\u003Cli>expensive remedials at height\u003C\u002Fli>\n\u003Cli>friction across M&E, fire stopping, drylining and door‑set trades\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>The aim: \u003Cstrong>prove the shaft is tight enough, and do it first time.\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Ch2>\u003Cstrong>What Smoke Shaft Air Leakage Testing Checks\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cp>The test verifies whether the shaft + its interfaces are sufficiently airtight for the smoke control system to function safely.\u003C\u002Fp>\n\u003Cp>Common leakage points:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>shaft access doors\u003C\u002Fli>\n\u003Cli>AOV frames and roof upstands\u003C\u002Fli>\n\u003Cli>vent\u002Fdamper frames\u003C\u002Fli>\n\u003Cli>incomplete builders‑work openings\u003C\u002Fli>\n\u003Cli>unsealed service penetrations\u003C\u002Fli>\n\u003Cli>incomplete shaft wall joints\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>If these are not controlled, commissioning becomes painful.\u003C\u002Fp>\n\u003Ch2>\u003Cstrong>What ATSPACE Was Asked To Do\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>confirm shaft readiness before testing\u003C\u002Fli>\n\u003Cli>deliver smoke shaft leakage testing within the commissioning window\u003C\u002Fli>\n\u003Cli>highlight leak routes that affect performance\u003C\u002Fli>\n\u003Cli>provide clear reporting for the fire strategy evidence\u003C\u002Fli>\n\u003Cli>avoid unnecessary disruption to ongoing commissioning\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2>\u003Cstrong>What ATSPACE Did On Site\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Ch3>\u003Cstrong>Step 1: Pre‑test readiness walkthrough\u003C\u002Fstrong>\u003C\u002Fh3>\n\u003Cp>We inspected all major risk points:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>AOV housing + frame continuity\u003C\u002Fli>\n\u003Cli>corridor vent frame seals\u003C\u002Fli>\n\u003Cli>access‑door seals, latching and closure pressure\u003C\u002Fli>\n\u003Cli>builders‑work openings or temporary holes\u003C\u002Fli>\n\u003Cli>wall joints, corners, structural interfaces\u003C\u002Fli>\n\u003Cli>penetrations that should not exist inside the shaft\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>This is where first‑time passes are won.\u003C\u002Fp>\n\u003Ch3>\u003Cstrong>Step 2: Confirm test setup + responsibilities\u003C\u002Fstrong>\u003C\u002Fh3>\n\u003Cp>We agreed:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>who controls access doors\u003C\u002Fli>\n\u003Cli>vent positions during testing\u003C\u002Fli>\n\u003Cli>building configuration to avoid false readings\u003C\u002Fli>\n\u003Cli>how issues would be recorded + resolved\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch3>\u003Cstrong>Step 3: Smoke shaft air leakage test\u003C\u002Fstrong>\u003C\u002Fh3>\n\u003Cp>ATSPACE executed the test to project specification and documented the conditions clearly.\u003C\u002Fp>\n\u003Ch3>\u003Cstrong>Step 4: Minor issue close‑out\u003C\u002Fstrong>\u003C\u002Fh3>\n\u003Cp>A small number of quick‑fix points were identified and converted into \u003Cem>precise\u003C\u002Fem> actions with:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>location\u003C\u002Fli>\n\u003Cli>cause\u003C\u002Fli>\n\u003Cli>what \"good\" looks like\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch3>\u003Cstrong>Step 5: Reporting for sign‑off\u003C\u002Fstrong>\u003C\u002Fh3>\n\u003Cp>A clean, unambiguous test report was delivered for commissioning records and fire‑strategy compliance packs.\u003C\u002Fp>\n\u003Ch2>\u003Cstrong>The Main Risk Points We Controlled Before Testing\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Ch3>\u003Cstrong>Risk 1: Shaft access doors\u003C\u002Fstrong>\u003C\u002Fh3>\n\u003Cp>Access doors often leak if seals are incomplete or closure pressure is poor.\u003C\u002Fp>\n\u003Cp>We checked:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>continuous seals\u003C\u002Fli>\n\u003Cli>alignment + latch engagement\u003C\u002Fli>\n\u003Cli>frame‑to‑structure sealing\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>\u003Cstrong>Why it matters:\u003C\u002Fstrong>\u003Cbr>A leaky door is effectively a permanent opening.\u003C\u002Fp>\n\u003Chr>\n\u003Ch3>\u003Cstrong>Risk 2: AOV frame + roof interface\u003C\u002Fstrong>\u003C\u002Fh3>\n\u003Cp>Roof interfaces often look complete but leak heavily.\u003C\u002Fp>\n\u003Cp>We checked:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>continuity around the AOV frame\u003C\u002Fli>\n\u003Cli>seating + closure\u003C\u002Fli>\n\u003Cli>interface seal line\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>\u003Cstrong>Why it matters:\u003C\u002Fstrong>\u003Cbr>Roof leakage is high impact and difficult to access later.\u003C\u002Fp>\n\u003Chr>\n\u003Ch3>\u003Cstrong>Risk 3: Corridor vent interfaces\u003C\u002Fstrong>\u003C\u002Fh3>\n\u003Cp>Vent frames leak if not sealed correctly.\u003C\u002Fp>\n\u003Cp>We checked:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>frame seal continuity\u003C\u002Fli>\n\u003Cli>vent seating\u003C\u002Fli>\n\u003Cli>surrounding builders‑work close‑out\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>\u003Cstrong>Why it matters:\u003C\u002Fstrong>\u003Cbr>Small gaps repeated across floors add up rapidly.\u003C\u002Fp>\n\u003Chr>\n\u003Ch3>\u003Cstrong>Risk 4: Builders‑work openings + hidden penetrations\u003C\u002Fstrong>\u003C\u002Fh3>\n\u003Cp>Temporary openings are often overlooked.\u003C\u002Fp>\n\u003Cp>We checked:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>unplanned shaft openings\u003C\u002Fli>\n\u003Cli>incomplete closure points\u003C\u002Fli>\n\u003Cli>service routes entering shaft zones\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>\u003Cstrong>Why it matters:\u003C\u002Fstrong>\u003Cbr>A single open route can dominate the leakage result.\u003C\u002Fp>\n\u003Ch2>\u003Cstrong>Outcome\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cp>The smoke shaft achieved a \u003Cstrong>first‑time pass\u003C\u002Fstrong>.\u003C\u002Fp>\n\u003Cp>The project gained:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>commissioning on programme\u003C\u002Fli>\n\u003Cli>fewer late remedials\u003C\u002Fli>\n\u003Cli>clean evidence for the fire engineer\u003C\u002Fli>\n\u003Cli>a repeatable readiness method for future phases\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2>\u003Cstrong>What This Proves\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cp>High‑rise smoke shaft success comes down to \u003Cstrong>interface control\u003C\u002Fstrong>.\u003C\u002Fp>\n\u003Cp>If builders treat the shaft as a finished element and verify key leakage points \u003Cem>before\u003C\u002Fem> the test window, first‑time passes become normal.\u003C\u002Fp>\n\u003Ch2>\u003Cstrong>Common Mistakes This Project Avoided\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>testing before doors\u002Fvents were fully sealed\u003C\u002Fli>\n\u003Cli>assuming fire stopping = airtightness\u003C\u002Fli>\n\u003Cli>leaving builders‑work openings unresolved\u003C\u002Fli>\n\u003Cli>discovering roof leaks after access equipment was gone\u003C\u002Fli>\n\u003Cli>allowing uncontrolled access during testing\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2>\u003Cstrong>CTA\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cp>If you are approaching commissioning on a residential block and need smoke shaft air leakage testing to land cleanly, ATSPACE can support with:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>readiness walkthroughs\u003C\u002Fli>\n\u003Cli>smoke shaft leakage testing\u003C\u002Fli>\n\u003Cli>remedial guidance\u003C\u002Fli>\n\u003Cli>reporting for handover + fire strategy evidence\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2>\u003Cstrong>Frequently Asked Questions\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cp>\u003Cstrong>When should smoke shaft air leakage testing take place?\u003C\u002Fstrong>\u003Cbr>During commissioning, once all interfaces and openings are closed out.\u003C\u002Fp>\n\u003Cp>\u003Cstrong>What usually causes failures?\u003C\u002Fstrong>\u003Cbr>Door seals, vent frames, AOV interfaces, and unclosed openings.\u003C\u002Fp>\n\u003Cp>\u003Cstrong>Can ATSPACE help if commissioning is already under pressure?\u003C\u002Fstrong>\u003Cbr>Yes — readiness checks and targeted close‑out prevent retest 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