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target=\"_blank\" class=\"group relative block w-full h-full rounded-xl border border-emerald-400 bg-[#f6f3ea]\n         p-8 transition-all duration-200 ease-out\n         hover:-translate-y-1 hover:shadow-lg\" draggable=\"false\">\n\u003Cdiv class=\"relative z-10 grid grid-cols-1 gap-6 md:grid-cols-12\">\u003C!-- LEFT CONTENT -->\n\u003Cdiv class=\"md:col-span-8\">\u003C!-- Icon -->\n\u003Cdiv class=\"mb-4 inline-flex h-10 w-10 items-center justify-center rounded-sm bg-emerald-500\">\u003C!-- document icon --> \u003Csvg viewBox=\"0 0 24 24\" class=\"h-6 w-6 text-white\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\">\n          \u003Cpath d=\"M14 2H7a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h10a2 2 0 0 0 2-2V8z\">\u003C\u002Fpath>\n          \u003Cpath d=\"M14 2v6h6\">\u003C\u002Fpath>\n          \u003Cpath d=\"M9 13h6M9 17h6\">\u003C\u002Fpath>\n        \u003C\u002Fsvg>\u003C\u002Fdiv>\n\u003C!-- Title -->\n\u003Ch3 class=\"mb-3 text-xl font-semibold text-teal-900\">Download our 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class=\"et_pb_column et_pb_column_1_2 et_pb_column_9  et_pb_css_mix_blend_mode_passthrough\">\n\u003Cdiv class=\"et_pb_module et_pb_text et_pb_text_4  et_pb_text_align_left et_pb_bg_layout_light\">\n\u003Ch2 class=\"et_pb_text_inner tt-font\">\u003Cstrong>Frequently asked questions\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003C\u002Fdiv>\n\u003C\u002Fdiv>",{"name":339,"componentName":340,"group":203,"id":341,"componentConfig":342,"blockTemplateId":607,"block_scope":608,"blockLabel":609,"blockDescription":7,"is_block":11},"FAQs","Faqs","b1bbb570-32ea-473c-b012-1b2c303383b7",{"selectedFaqIds":343,"selectedFaqs":394,"tagFilters":595,"excludedFaqIds":596,"autoFaqOrderIds":597,"allowMultiple":11,"openFirst":11,"variant":598,"titleColor":599,"activeTitleColor":600,"bodyColor":599,"boxBackgroundColor":601,"boxBorderColor":602,"iconColor":603,"itemSpacing":312,"titleFontSize":604,"bodyFontSize":605,"maxVisibleItems":606},[344,345,346,347,348,349,350,351,352,353,354,355,356,357,358,359,360,361,362,363,364,365,366,367,368,369,370,371,372,373,374,375,376,377,378,379,380,381,382,383,384,385,386,387,388,389,390,391,392,393],1900,191,192,1901,1902,1903,1904,1905,1906,1907,1908,1909,1910,1911,1912,1913,1914,1915,1916,1917,1918,1919,1920,1921,1922,1923,1924,1925,1926,1927,1928,1929,1930,1931,1932,1933,1934,1935,1936,1937,1938,1939,1940,1941,1942,1943,1944,1945,1946,1947,[395,399,403,407,411,415,419,423,427,431,435,439,443,447,451,455,459,463,467,471,475,479,483,487,491,495,499,503,507,511,515,519,523,527,531,535,539,543,547,551,555,559,563,567,571,575,579,583,587,591],{"id":344,"question":396,"answer":397,"tags":398},"What is diagnostic air leakage testing?","Diagnostic air leakage testing is an investigative airtightness survey used to find where uncontrolled air is leaking, not just how much is leaking. The building is put under a pressure difference so leakage paths become easier to detect, then tools such as smoke, thermal imaging and airflow probes are used to pinpoint the problem areas. It is the practical fault-finding stage that helps teams fix leaks before or after a formal air test.",[],{"id":345,"question":400,"answer":401,"tags":402},"How is diagnostic air leakage testing different from a formal air test?","Diagnostic air leakage testing is for fault-finding; a formal air test is for compliance. A diagnostic visit is there to locate leakage paths, explain why the building is leaking and guide remedial works. A formal Part L pressure test is the one used to produce the measured air permeability result for compliance and Building Control evidence. The two work best together: diagnostics help you fix the problem, and the formal test proves the finished result.",[],{"id":346,"question":404,"answer":405,"tags":406},"When should diagnostic air leakage testing be used?","Diagnostic air leakage testing should be used before the formal test if you want the best chance of a first-time pass, and immediately after a failed test if you need targeted remedials fast. It is also useful during retrofit planning, on existing buildings with draught complaints, and on complex sites where airtightness details are hard to verify visually. The earlier it is used, the easier the fixes usually are.",[],{"id":347,"question":408,"answer":409,"tags":410},"Is diagnostic air leakage testing mandatory under Part L?","No. Diagnostic air leakage testing is not itself the Part L requirement; it is an optional but highly practical support service. The regulations focus on formal pressure testing for compliance, such as testing every new dwelling in England and formal testing of new non-domestic buildings unless a specific alternative route applies. Diagnostics sit alongside that process to reduce risk, not replace it.",[],{"id":348,"question":412,"answer":413,"tags":414},"Can diagnostics be done before a formal Part L air test?","Yes, and that is one of the smartest times to use them. Interim testing is most effective when most of the air barrier has been formed but is still accessible enough to repair properly. That lets the site team fix real leakage paths before dry-lining, ceilings, joinery or fit-out hide the problem and before the compliance test becomes a critical-path event.",[],{"id":349,"question":416,"answer":417,"tags":418},"Can diagnostics help after a failed air test?","Yes. After a failed air test, diagnostics are usually the fastest way to move from a fail result to a workable remedial plan. Both dwelling and non-domestic guidance require the building to be improved and retested until it meets the relevant criteria, and all failures still have to be reported to Building Control. A diagnostic visit turns that pressure into targeted action rather than guesswork.",[],{"id":350,"question":420,"answer":421,"tags":422},"Is diagnostic testing accepted by Building Control as a compliance air test?","No. Building Control sign-off depends on a valid formal pressure test result and the associated compliance evidence, not on a diagnostic survey alone. Diagnostic fans and interim leak-finding tools are useful for identifying problems, but they are not a substitute for a compliant final test result. In plain terms, diagnostics help you get the pass, but they are not the pass.",[],{"id":351,"question":424,"answer":425,"tags":426},"What happens during a diagnostic air leakage survey?","During a diagnostic survey, the engineer installs a fan setup, creates a controlled pressure difference and then checks the building for leakage paths using smoke, thermal imaging, airflow tools and physical inspection. The goal is to map where air is getting through and explain why. On a good diagnostic visit, the team also gets practical remedial advice and, where possible, rechecks of the repaired areas before the engineer leaves.",[],{"id":352,"question":428,"answer":429,"tags":430},"What equipment is used for air leakage diagnostics?","The core equipment is usually a blower door or similar fan system to create the pressure difference, supported by smoke, thermal imaging, vane anemometers, noise detectors and simple hands-on inspection. Different tools suit different defects. Smoke is excellent for showing airflow visually, while thermography and airflow measurement can help confirm weaker or less obvious leakage routes.",[],{"id":353,"question":432,"answer":433,"tags":434},"Does diagnostic testing use pressurisation or depressurisation?","It can use either, and on better investigations it may use both. CIBSE TM23 recommends both positive and negative testing where that is practicable, while good-practice guidance notes that depressurisation is often especially useful for leak-finding because the pressure difference accelerates airflow through leakage points and makes them easier to identify. The right approach depends on the building detail and what you are trying to prove.",[],{"id":354,"question":436,"answer":437,"tags":438},"Can smoke testing be used to find air leaks?","Yes. Smoke testing is one of the clearest ways to show where air is entering or escaping under a pressure difference. On site, it is particularly effective because it turns an invisible problem into something the contractor, site manager and installer can all see immediately. That makes remedials faster, more targeted and far less reliant on “seal everything and hope” thinking.",[],{"id":355,"question":440,"answer":441,"tags":442},"Does thermal imaging help locate air leakage?","Yes. Thermal imaging is a very useful diagnostic tool for identifying areas affected by air leakage, especially when used alongside a pressure difference. It does not replace proper airtightness testing, but it can help the team spot weak details, track leakage paths and focus remedials more efficiently than visual inspection alone. Used properly, it speeds up diagnosis and reduces unnecessary rework.",[],{"id":356,"question":444,"answer":445,"tags":446},"Can you carry out interim diagnostic testing while the air barrier is still accessible?","Yes, and that is often the best time to do it. Good-practice guidance is very clear that interim testing should happen when the air barrier can still be reached, because that is when defects can actually be fixed properly rather than disguised or worked around. It is one of the most effective ways to protect programme, quality and final test performance.",[],{"id":357,"question":448,"answer":449,"tags":450},"Can site teams do their own leak checks between formal visits?","Yes, to a point. Good-practice guidance notes that on larger sites it can be practical to rent fans and train site operatives to carry out leak checking between specialist visits, which can add flexibility and save money. But that is not the same as formal certification. The final compliance test still needs to be carried out by someone with the right training and registration for that class of building.",[],{"id":358,"question":452,"answer":453,"tags":454},"What is the best stage of build for diagnostic air leakage testing?","The best stage is when the main airtightness layer is largely complete but still visible and reachable. That usually means after the key envelope and service interfaces are in place, but before follow-on trades close everything up. If you leave diagnostics until the building looks finished, you often turn simple sealing jobs into invasive remedials and lose the main advantage of the service.",[],{"id":359,"question":456,"answer":457,"tags":458},"Can diagnostics be carried out before dry-lining, ceilings or fit-out close the building up?","Yes, and that is exactly where diagnostic testing earns its keep. Approved Document L for dwellings expects on-site audits before elements are concealed by subsequent work, and interim airtightness guidance says testing should happen while the air barrier is still accessible. In practical terms, this is the stage that helps you find the real problem before plasterboard, ceilings and fit-out turn a simple fix into rework.",[],{"id":360,"question":460,"answer":461,"tags":462},"Can diagnostic air leakage testing be used on offices, warehouses, retail units and schools?","Yes. Diagnostic air leakage testing is just as useful on commercial buildings as it is on dwellings, especially where the envelope is large, the details repeat, or the project has awkward interfaces between structure, façade and services. Offices, warehouses, retail units and schools often benefit from partial or localised diagnostics because fixing a problem early on one area is far better than repeating it across a whole building.",[],{"id":361,"question":464,"answer":465,"tags":466},"Can diagnostic air leakage testing be done on existing homes?","Yes. Existing homes are often tested diagnostically to investigate draughts, plan retrofit work and reduce uncontrolled heat loss before money is spent on remedials. That is particularly relevant because the UK housing stock is highly variable in airtightness, with a 2025 DESNZ study finding a mean air permeability of 8.6 m³\u002Fh·m² at 50Pa across the GB stock and a very wide overall range.",[],{"id":362,"question":468,"answer":469,"tags":470},"Can diagnostic air leakage testing be done on existing commercial buildings?","Yes. Approved Document L Volume 2 applies to both new and existing buildings other than dwellings, and diagnostic airtightness work can be very useful on refurbishments, landlord improvement programmes and problem buildings with comfort or energy-use complaints. The important point is not just tightening the building, but understanding how any reduction in infiltration interacts with the ventilation strategy and the building’s actual use.",[],{"id":363,"question":472,"answer":473,"tags":474},"Is diagnostic testing useful for retrofit projects?","Yes. Diagnostic testing is extremely useful in retrofit because it tells you where the building is actually leaking before you start sealing indiscriminately. Recent DESNZ research found that service penetrations, poor sealing and poor workmanship are typical airtightness failure points, and that sealing openings, windows, doors and service penetrations can be effective. The catch is that ventilation still has to be reviewed alongside airtightness improvements.",[],{"id":364,"question":476,"answer":477,"tags":478},"Does Approved Document F support using air permeability testing when tightening an existing dwelling?","Yes. Approved Document F says that when energy efficiency measures are carried out on an existing dwelling, the ventilation assessment can be done by seeking expert advice, and that expert advice may include carrying out an air permeability test following the Approved Document L dwelling procedures. That is a strong reason diagnostic airtightness testing is valuable on retrofit and upgrade work, not just on new-build plots.",[],{"id":365,"question":480,"answer":481,"tags":482},"Can diagnostic testing help flats and apartment blocks?","Yes, but the pressure boundary has to be understood properly. In buildings containing more than one dwelling, the flats are treated as dwellings, while heated common areas and non-dwelling spaces fall under the non-domestic guidance. Diagnostic testing is useful because it helps teams work out whether leakage is happening through the flat envelope, the communal areas, service risers or the interfaces between them.",[],{"id":366,"question":484,"answer":485,"tags":486},"Can diagnostic testing help mixed-use developments?","Yes. Mixed-use schemes are exactly the kind of projects where diagnostics can prevent confusion and rework, because the dwelling parts and the non-dwelling parts sit under different Approved Documents. Leakage problems on these jobs often come from blurred boundaries between flats, heated common areas and commercial units. Diagnostic testing helps make those boundaries real in practice rather than just theoretical on the drawings.",[],{"id":367,"question":488,"answer":489,"tags":490},"Can diagnostic testing help shell-and-core and fit-out projects?","Yes. Shell-and-core projects are a strong use case for diagnostics because the base-build envelope, the fit-out assumptions and the final pressure boundary all need to line up. Approved Document L Volume 2 sets out separate shell-and-core and first fit-out procedures, so it makes sense to use diagnostics before those boundaries become disputes. Done early, it helps protect both landlord handover and tenant fit-out compliance.",[],{"id":368,"question":492,"answer":493,"tags":494},"Can diagnostic testing be used on large or complex buildings?","Yes, and on large or complex buildings it is often even more valuable than on simple ones. Approved Document L Volume 2 allows a strategy route where pressure testing is impractical, but that strategy has to justify why testing is impractical and show how a continuous air barrier will still be achieved, with expert advice in line with CIBSE TM23. Diagnostics help turn that strategy into something real on site.",[],{"id":369,"question":496,"answer":497,"tags":498},"What is partial testing in air leakage diagnostics?","Partial testing means testing only certain areas or volumes of a building to identify likely failure points, rather than waiting for a full building test. Good-practice guidance says this can be necessary on complex projects and may be used to isolate problem areas. On live commercial sites, that can be the difference between a manageable fix on one wing or floor and a much bigger problem later.",[],{"id":370,"question":500,"answer":501,"tags":502},"What is localised testing and when is it useful?","Localised testing is a very focused diagnostic check on a particular detail, element or build-up rather than on a whole building or whole zone. It is especially useful for proving repeatable details early, such as the first window installation, a tricky junction or a mock-up. That lets the team confirm the detail works before the same mistake is repeated across the rest of the job.",[],{"id":371,"question":504,"answer":505,"tags":506},"What are the most common air leakage failure points?","The most common failure points are the air barrier itself, junctions, window and door seals, service penetrations and areas affected by poor workmanship. Recent DESNZ research also highlights overreliance on secondary sealing as a repeated issue because those secondary seals degrade over time. In plain site terms, most leaks come from interfaces and execution, not from some mysterious problem hidden deep in the building.",[],{"id":372,"question":508,"answer":509,"tags":510},"Why are service penetrations such a common problem?","Service penetrations are such a common problem because every penetration breaks the continuity of the air barrier unless it is designed and sealed properly. Approved Document L for dwellings says incoming services should be grouped to minimise penetrations and sealed with grommets, collars, tape or sealant, and DESNZ research confirms service penetrations are one of the most typical airtightness failure points. Late changes by M&E trades only make that worse.",[],{"id":373,"question":512,"answer":513,"tags":514},"Why does dry-lining create hidden air leakage?","Dry-lining creates hidden air leakage because it can leave a concealed cavity that connects multiple leakage routes behind the plasterboard. ATTMA’s dwelling guidance flags this as one of the most common issues, especially where air gets in along or under skirtings or behind kitchen units where there is no skirting at all. The plot can look finished, but the air barrier behind it is still incomplete.",[],{"id":374,"question":516,"answer":517,"tags":518},"Are windows and doors common leakage points?","Yes. Windows and doors are classic leakage points because they sit at the junction between the manufactured unit and the primary air barrier. Approved Document L requires continuity at these openings, with units connected to the main air barrier and frames taped to surrounding structural openings. Diagnostic testing is particularly useful here because depressurisation can reveal weak casement seals and badly detailed frame interfaces very quickly.",[],{"id":375,"question":520,"answer":521,"tags":522},"Can loft hatches, meter boxes, sockets and small service holes cause major leakage?","Yes. Small-looking defects can contribute a surprising amount of leakage, especially when they link into hidden voids. Good-practice airtightness guidance lists loft hatches, meter boxes, sockets, spotlights, pipe penetrations and WC or bath service points among the places leaks are commonly found in both new and existing housing. These are exactly the details diagnostic testing is good at exposing before the formal test result suffers.",[],{"id":376,"question":524,"answer":525,"tags":526},"Why is overreliance on mastic or temporary sealing a bad idea?","Because it usually treats the symptom, not the defect. ATTMA warns against the temporary sealing or mastic trap, saying it is a short-term fix that can lead to later problems and that temporary sealing can falsify results and breach the scheme rules. DESNZ research also found that overreliance on secondary sealing is poor long-term practice because those materials dry out, shrink and crack over time.",[],{"id":377,"question":528,"answer":529,"tags":530},"Can you diagnose air leaks without waiting for the building to be fully complete?","Yes. Pre-tests and interim diagnostics are specifically useful because they allow the team to benchmark what has been built so far and identify defects while the construction is still open enough to fix. Good-practice guidance says testing should happen while the air barrier is accessible, and pre-test sealing of incomplete elements can be acceptable for benchmarking completed work even though it would not be valid for the final compliance test.",[],{"id":378,"question":532,"answer":533,"tags":534},"How long does diagnostic air leakage testing take?","There is no single fixed duration because diagnostic testing can range from a focused local detail check to a more involved partial or whole-zone investigation. The main time drivers are building size, access, number of areas being checked, whether smoke or thermal imaging is being used, and whether the engineer is rechecking remedials during the same visit. On diagnostics, scope matters more than a generic headline time.",[],{"id":379,"question":536,"answer":537,"tags":538},"What affects the cost of diagnostic air leakage testing?","Cost is mainly driven by scope rather than a simple pass\u002Ffail test fee. A short localised investigation on one window detail is very different from a full diagnostic visit involving multiple zones, smoke testing, thermography, photographs, written findings and repeat checks after remedials. Complexity, access, travel, building size and whether you need a same-visit recheck all affect the price. The right question is usually “what scope do we need to solve the problem properly?”",[],{"id":380,"question":540,"answer":541,"tags":542},"What do you get after a diagnostic air leakage visit?","You usually get a practical findings report rather than a compliance certificate. A good diagnostic visit should identify the main leakage paths, include photos or clear notes, explain likely causes and prioritise remedial actions so the site team knows what to fix first. If you need Building Control acceptance, remember that a separate formal pressure test and compliance evidence are still required.",[],{"id":381,"question":544,"answer":545,"tags":546},"Can diagnostic testing reduce rework and programme delay?","Yes. That is one of its biggest commercial benefits. Approved Document L expects checks before details are concealed, and ATTMA is blunt that fixing problems later is more time-consuming and costlier than designing and building correctly in the first place. Diagnostics move the problem forward to a stage where it can still be solved cleanly instead of becoming a handover delay or failed-test fire drill.",[],{"id":382,"question":548,"answer":549,"tags":550},"Can diagnostic testing improve first-time pass rates?","Yes. Interim and diagnostic testing are among the best ways to improve first-time pass performance because they let you find and fix leakage paths before the formal test. Good-practice guidance says interim testing is essential for airtight buildings and should happen while the air barrier is still accessible. That is how projects stop a tight target becoming a late-stage surprise.",[],{"id":383,"question":552,"answer":553,"tags":554},"Does diagnostic testing replace the final compliance retest?","No. Diagnostic testing helps you understand and improve the building, but it does not replace the formal compliance retest required after a failure. Approved Document L says the building or dwelling must be improved and retested until it meets the relevant criteria, and diagnostic tools used to create pressure differences for leak-finding are not, by themselves, compliance measurements.",[],{"id":384,"question":556,"answer":557,"tags":558},"Can diagnostics help prioritise remedial works rather than sealing everything?","Yes. That is exactly what they are for. A good diagnostic survey identifies the main leakage paths, shows which defects are materially affecting the result and lets the team fix the highest-impact areas first. That is far more efficient than blanket sealing. It also means the fan equipment can then be used again to check whether those specific remedials have actually worked.",[],{"id":385,"question":560,"answer":561,"tags":562},"Can the same fan setup be used to re-check repairs on the day?","Yes, often it can. Good-practice airtightness guidance specifically notes that fan equipment can be used to check the effectiveness of remedial sealing works once repairs have been made. On live sites, that is valuable because it gives immediate feedback instead of forcing the team to wait for a later visit to find out whether the fix actually solved the leakage path.",[],{"id":386,"question":564,"answer":565,"tags":566},"Do weather and site conditions affect diagnostic air leakage testing?","Yes. Wind and unstable pressure conditions can affect the reliability of both formal and diagnostic testing, so weather still matters. The BRE\u002FPassivhaus airtightness guide says testing should not be undertaken when wind speeds are above 6 m\u002Fs and cautions that even lighter winds begin to introduce error. Site conditions also matter because openings, traps and ventilation routes have to be prepared correctly before the survey begins.",[],{"id":387,"question":568,"answer":569,"tags":570},"Can diagnostics be carried out in live or occupied buildings?","Yes, sometimes. Airtightness testing can be undertaken on buildings in use, but occupied buildings need more careful management of access, openings, pressure boundaries and occupant activities. The guidance recognises testing in use, and even notes practical issues such as adjacent occupied dwellings where pressure equalisation cannot be achieved in the normal way. In other words, it is possible, but it needs planning rather than guesswork.",[],{"id":388,"question":572,"answer":573,"tags":574},"Can diagnostic testing still help if the building is already finished?","Yes. It is usually most cost-effective earlier, but it can still be very useful on finished buildings where the aim is to investigate draughts, discomfort, retrofit opportunities or poor energy performance. Existing-building consultancy commonly uses site visits and reports with photographs to identify likely leakage paths before any formal retest or improvement work. The main difference is that access to the root cause can be harder once finishes are complete.",[],{"id":389,"question":576,"answer":577,"tags":578},"Does making a building tighter create ventilation risks?","Yes, it can, if the ventilation strategy is not reviewed at the same time. Approved Document F for both dwellings and non-domestic buildings warns that reducing infiltration can reduce indoor air quality below the required standard. Recent DESNZ work reaches the same broad conclusion: most unintended consequences linked to tighter homes are really consequences of poor ventilation, not airtightness itself. Tightening and ventilation have to be designed together.",[],{"id":390,"question":580,"answer":581,"tags":582},"What happens if a dwelling turns out much tighter than designed?","If a naturally ventilated dwelling ends up so airtight that it becomes a “highly airtight dwelling”, the ventilation design may need to change. Approved Document F defines a highly airtight dwelling as one with design air permeability below 5 or as-built air permeability below 3 m³\u002F(h·m²) at 50Pa, and says expert advice should be sought or a continuous mechanical extract system should be installed in certain cases.",[],{"id":391,"question":584,"answer":585,"tags":586},"Can diagnostic testing improve comfort and reduce draught complaints?","Yes. Uncontrolled infiltration is, by definition, unwanted air exchange through gaps and cracks, and it is a common cause of draught discomfort. Diagnostic testing helps identify the exact routes causing that problem so sealing can be targeted rather than random. Existing-building airtightness consultancy also notes that poor airtightness can increase energy demand and reduce occupant comfort, which is why diagnostics are so useful on complaint-led investigations.",[],{"id":392,"question":588,"answer":589,"tags":590},"Who should carry out diagnostic air leakage testing?","It should be carried out by an experienced airtightness specialist who understands both testing and building defects. On regulated projects, that matters even more because the formal pressure test certificate relied on by Building Control must come from a person with appropriate training who is registered to test that class of building. In practice, the best diagnostic engineers are the ones who can both find the leak and explain how to fix it.",[],{"id":393,"question":592,"answer":593,"tags":594},"What is the best way to use diagnostic air leakage testing to get it right first time?","Use it early, use it while the air barrier is still accessible, and use it to verify real fixes rather than cosmetic sealing. The strongest approach is to carry out interim diagnostics before the formal test, target the major leakage paths, re-check the remedials and only then move to final sign-off testing. That is how teams avoid failed tests, reduce rework and keep completion moving.",[],[],[],[],"boxed","#0a615a","#08cf65","#ebf5f3","#8cf09b","#64748b",18,14,5,21,"widget","FAQs Styled","mb-10","faqs",{"name":168,"componentName":169,"cols":170,"colsMD":171,"customColSpan":8,"parentAlign":172,"bgImage":7,"inlineStyles":7,"bgColor":286,"group":174,"margin":7,"padding":7,"classes":7,"colSpan":7,"id":613,"originalModel":614,"borderWidth":7,"borderColor":7,"borderRadius":7,"sticky":8,"stickyTop":195,"paddingVertical":660,"stickyDisableSmall":8,"blockTemplateId":661,"block_scope":254,"blockLabel":662,"blockDescription":7,"is_block":11,"borderPosition":7,"paddingHorizontal":321,"htmlId":663,"html_id":663,"bgColorOpacity":185,"bgImageVisibility":186,"bgImageSize":187,"bgImagePosition":188,"bgImageRepeat":189,"bgImageAttachment":190,"bgImageOpacity":185,"bgImageVisibilitySM":7,"bgImageVisibilityMD":7,"bgImageVisibilityLG":7,"bgImageSizeSM":7,"bgImageSizeMD":7,"bgImageSizeLG":7,"bgImagePositionSM":7,"bgImagePositionMD":7,"bgImagePositionLG":7,"equalHeightRows":8,"fillParentHeight":8},"ab4c54a2-424d-40d3-8b56-2b9ce1619d72",[615],[616,618,638],{"id":617,"colSpan":180,"colSpanSM":181,"colSpanMD":182,"colSpanLG":183,"customColSpan":8,"bgColor":7,"borderWidth":7,"borderColor":7,"borderRadius":7,"classes":7,"borderPosition":7,"bgColorOpacity":185,"bgImage":7,"bgImageVisibility":186,"bgImageSize":187,"bgImagePosition":188,"bgImageRepeat":189,"bgImageAttachment":190,"bgImageOpacity":185,"bgImageVisibilitySM":7,"bgImageVisibilityMD":7,"bgImageVisibilityLG":7,"bgImageSizeSM":7,"bgImageSizeMD":7,"bgImageSizeLG":7,"bgImagePositionSM":7,"bgImagePositionMD":7,"bgImagePositionLG":7},"38e00417-c231-4100-a898-160be6ccfcf0",{"name":192,"componentName":169,"nested":11,"cols":170,"colsMD":171,"customColSpan":8,"parentAlign":172,"bgImage":7,"inlineStyles":7,"bgColor":7,"group":193,"margin":7,"padding":7,"classes":7,"colSpan":7,"id":619,"borderWidth":7,"borderPosition":7,"borderColor":7,"borderRadius":7,"sticky":8,"stickyTop":195,"stickyDisableSmall":8,"originalModel":620,"containerWidth":210,"paddingBottom":635,"blockTemplateId":604,"blockLabel":636,"blockDescription":7,"block_scope":637,"is_block":11,"bgColorOpacity":185,"bgImageVisibility":186,"bgImageSize":187,"bgImagePosition":188,"bgImageRepeat":189,"bgImageAttachment":190,"bgImageOpacity":185,"bgImageVisibilitySM":7,"bgImageVisibilityMD":7,"bgImageVisibilityLG":7,"bgImageSizeSM":7,"bgImageSizeMD":7,"bgImageSizeLG":7,"bgImagePositionSM":7,"bgImagePositionMD":7,"bgImagePositionLG":7,"equalHeightRows":8,"fillParentHeight":8},"e5ab58a1-eda5-47c9-8ad6-0012799cb125",[621,628],[622,624],{"id":623,"colSpan":180,"colSpanSM":217,"colSpanMD":218,"colSpanLG":219,"customColSpan":8,"bgColor":7,"borderWidth":7,"borderPosition":7,"borderColor":7,"borderRadius":7,"classes":7,"bgColorOpacity":185,"bgImage":7,"bgImageVisibility":186,"bgImageSize":187,"bgImagePosition":188,"bgImageRepeat":189,"bgImageAttachment":190,"bgImageOpacity":185,"bgImageVisibilitySM":7,"bgImageVisibilityMD":7,"bgImageVisibilityLG":7,"bgImageSizeSM":7,"bgImageSizeMD":7,"bgImageSizeLG":7,"bgImagePositionSM":7,"bgImagePositionMD":7,"bgImagePositionLG":7},"78a797e6-3478-4935-a151-81562deb50fd",{"name":201,"componentName":202,"group":203,"margin":7,"padding":7,"classes":7,"bgImage":7,"id":625,"originalModel":626},"01365215-9999-438e-901d-c595459e521f",{"proseEnabled":8,"content":627,"lineHeightClass":207,"trackingClass":208,"spacingClass":209,"margin":7,"marginSM":7,"marginMD":7,"marginLG":7,"marginTop":7,"marginTopSM":7,"marginTopMD":7,"marginTopLG":7,"marginRight":7,"marginRightSM":7,"marginRightMD":7,"marginRightLG":7,"marginBottom":7,"marginBottomSM":7,"marginBottomMD":7,"marginBottomLG":7,"marginLeft":7,"marginLeftSM":7,"marginLeftMD":7,"marginLeftLG":7,"padding":7,"paddingSM":7,"paddingMD":7,"paddingLG":7},"\u003Ch2 class=\"text-2xl md:text-3xl text-theme-dark-green font-medium mb-4\">Videos for diagnostic air leakage testing\u003C\u002Fh2>\n\u003Cp>\u003Cstrong>Explore our videos for quick, engaging insights on building compliance. From step-by-step guides to expert advice, our video library simplifies complex topics, making it easier for you to take action and stay informed. Perfect for when you need clarity in minutes!\u003C\u002Fstrong>\u003C\u002Fp>",[629,631],{"id":630,"colSpan":180,"colSpanSM":217,"colSpanMD":218,"colSpanLG":219,"customColSpan":8,"bgColor":7,"borderWidth":7,"borderPosition":7,"borderColor":7,"borderRadius":7,"classes":7,"bgColorOpacity":185,"bgImage":7,"bgImageVisibility":186,"bgImageSize":187,"bgImagePosition":188,"bgImageRepeat":189,"bgImageAttachment":190,"bgImageOpacity":185,"bgImageVisibilitySM":7,"bgImageVisibilityMD":7,"bgImageVisibilityLG":7,"bgImageSizeSM":7,"bgImageSizeMD":7,"bgImageSizeLG":7,"bgImagePositionSM":7,"bgImagePositionMD":7,"bgImagePositionLG":7},"9ae6ccd4-077d-4c48-a62a-5d38e06f29f2",{"name":201,"componentName":202,"group":203,"margin":7,"padding":7,"classes":7,"bgImage":7,"id":632,"originalModel":633},"5c8444c7-b536-45a3-a2ae-d9d84a57df3a",{"proseEnabled":11,"content":634,"lineHeightClass":207,"trackingClass":208,"spacingClass":209,"margin":7,"marginSM":7,"marginMD":7,"marginLG":7,"marginTop":7,"marginTopSM":7,"marginTopMD":7,"marginTopLG":7,"marginRight":7,"marginRightSM":7,"marginRightMD":7,"marginRightLG":7,"marginBottom":7,"marginBottomSM":7,"marginBottomMD":7,"marginBottomLG":7,"marginLeft":7,"marginLeftSM":7,"marginLeftMD":7,"marginLeftLG":7,"padding":7,"paddingSM":7,"paddingMD":7,"paddingLG":7},"\u003Cdiv 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334.5z\">\u003C\u002Fpath>\u003C\u002Fsvg>\u003Ch4 class=\"text-lg \" style=\"color:#08CF65\">Case studies\u003C\u002Fh4>\n\u003Cp class=\"mt-2 theme-dark-green-lighter text-theme-dark-green tracking-wide subtle-bold-spaced\">Learn from real-world examples that highlight challenges, solutions, and 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class=\"et_pb_column et_pb_column_4_4 et_pb_column_7  et_pb_css_mix_blend_mode_passthrough et-last-child\">\n\u003Cdiv class=\"et_pb_module et_pb_text et_pb_text_2  et_pb_text_align_left et_pb_bg_layout_light\">\n\u003Ch2 class=\"et_pb_text_inner\">Choose a category below\u003C\u002Fh2>\n\u003C\u002Fdiv>\n\u003C\u002Fdiv>",{"name":694,"componentName":695,"group":203,"id":895,"originalModel":896},"f888707a-b2c9-4695-8a60-3f76536a337b",{"pageTypeId":161,"tags":897,"orderMode":706,"orderBy":707,"orderDirection":708,"manualPageIds":898,"selectedPageIds":899,"excludedPageIds":900,"autoPageOrderIds":901,"maxItems":7,"itemClass":902,"template":903,"columns":904},[],[],[],[],[],"relative","\u003Cdiv style=\"display:flex; align-items:center;\">\n    \u003Ca href=\"{{full_url}}\" class=\"link-lift\" style=\"display:flex; align-items:center; font-size:18px; text-decoration:none; transition: transform 0.15s ease;\" style=\"color:#0284c7\">\n        \u003Cimg src=\"{{icon}}\" style=\"height:40px; \" alt=\"{{ title }}\" class=\"object-contain\">\n        \u003Cspan style=\"margin-left:10px\">{{ title }}\u003C\u002Fspan>\n    \u003C\u002Fa>\n\u003C\u002Fdiv>",{"lg":161,"md":319,"sm":282},"2026-02-05T09:58:50.000000Z","2026-06-16T10:20:37.000000Z","Knowledge Hub Welcome to the knowledge hub—your all-in-one resource for mastering building compliance. We’ve designed this space to educate and empower you in five key ways. Whether you prefer to watch, read, or apply hands-on tools, the knowledge hub has everything you need to navigate compliance with confidence.. Videos Watch concise, expert-led tutorials and guides to quickly grasp complex topics. FAQs Get clear answers to common questions, saving you time and uncertainty. Checklists Use practical, downloadable tools to simplify your compliance journey. Blogs Stay informed with actionable insights, tips, and the latest industry updates. Case studies Learn from real-world examples that highlight challenges, solutions, and successes. Choose a category below {{ title }}","\u003Ch1 class=\"text-center text-5xl md:text-6xl leading-[1.2em]  text-theme-dark-green mb-4\" style=\"text-align: left;\">Knowledge Hub\u003C\u002Fh1>\n\u003Cdiv class=\"et_pb_module et_pb_text et_pb_text_1  et_pb_text_align_left et_pb_bg_layout_light\">\n\u003Cdiv class=\"et_pb_text_inner lead\">Welcome to the knowledge hub—your all-in-one resource for mastering building compliance. We’ve designed this space to educate and empower you in five key ways. Whether you prefer to watch, read, or apply hands-on tools, the knowledge hub has everything you need to navigate compliance with confidence..\u003C\u002Fdiv>\n\u003C\u002Fdiv>\n\u003Csvg xmlns=\"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg\" viewBox=\"0 0 640 640\" style=\"max-height: 50px;\" fill=\"#04454d\">\u003Cpath d=\"M581.7 188.1C575.5 164.4 556.9 145.8 533.4 139.5C490.9 128 320.1 128 320.1 128C320.1 128 149.3 128 106.7 139.5C83.2 145.8 64.7 164.4 58.4 188.1C47 231 47 320.4 47 320.4C47 320.4 47 409.8 58.4 452.7C64.7 476.3 83.2 494.2 106.7 500.5C149.3 512 320.1 512 320.1 512C320.1 512 490.9 512 533.5 500.5C557 494.2 575.5 476.3 581.8 452.7C593.2 409.8 593.2 320.4 593.2 320.4C593.2 320.4 593.2 231 581.8 188.1zM264.2 401.6L264.2 239.2L406.9 320.4L264.2 401.6z\"\u002F>\u003C\u002Fsvg>\n\u003Ch4 class=\"text-lg \"style=\"color:#08CF65\">Videos\u003C\u002Fh4>\n\u003Cp class=\"mt-2 theme-dark-green-lighter text-theme-dark-green tracking-wide subtle-bold-spaced\" >Watch concise, expert-led tutorials and guides to quickly grasp complex topics.\u003C\u002Fp>\n\u003Csvg xmlns=\"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg\" viewBox=\"0 0 640 640\" style=\"max-height: 50px;\" fill=\"#04454d\">\n\u003Cpath d=\"M416 208C416 305.2 330 384 224 384C197.3 384 171.9 379 148.8 370L67.2 413.2C57.9 418.1 46.5 416.4 39 409C31.5 401.6 29.8 390.1 34.8 380.8L70.4 313.6C46.3 284.2 32 247.6 32 208C32 110.8 118 32 224 32C330 32 416 110.8 416 208zM416 576C321.9 576 243.6 513.9 227.2 432C347.2 430.5 451.5 345.1 463 229.3C546.3 248.5 608 317.6 608 400C608 439.6 593.7 476.2 569.6 505.6L605.2 572.8C610.1 582.1 608.4 593.5 601 601C593.6 608.5 582.1 610.2 572.8 605.2L491.2 562C468.1 571 442.7 576 416 576z\"\u002F>\u003C\u002Fsvg>\n\u003Ch4 class=\"text-lg \"style=\"color:#08CF65\">FAQs\u003C\u002Fh4>\n\u003Cp class=\"mt-2 theme-dark-green-lighter text-theme-dark-green tracking-wide subtle-bold-spaced\" >Get clear answers to common questions, saving you time and uncertainty.\u003C\u002Fp>\n\u003Csvg xmlns=\"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg\" viewBox=\"0 0 640 640\" style=\"max-height: 50px;\" fill=\"#04454d\">\u003Cpath d=\"M197.8 100.3C208.7 107.9 211.3 122.9 203.7 133.7L147.7 213.7C143.6 219.5 137.2 223.2 130.1 223.8C123 224.4 116 222 111 217L71 177C61.7 167.6 61.7 152.4 71 143C80.3 133.6 95.6 133.7 105 143L124.8 162.8L164.4 106.2C172 95.3 187 92.7 197.8 100.3zM197.8 260.3C208.7 267.9 211.3 282.9 203.7 293.7L147.7 373.7C143.6 379.5 137.2 383.2 130.1 383.8C123 384.4 116 382 111 377L71 337C61.6 327.6 61.6 312.4 71 303.1C80.4 293.8 95.6 293.7 104.9 303.1L124.7 322.9L164.3 266.3C171.9 255.4 186.9 252.8 197.7 260.4zM288 160C288 142.3 302.3 128 320 128L544 128C561.7 128 576 142.3 576 160C576 177.7 561.7 192 544 192L320 192C302.3 192 288 177.7 288 160zM288 320C288 302.3 302.3 288 320 288L544 288C561.7 288 576 302.3 576 320C576 337.7 561.7 352 544 352L320 352C302.3 352 288 337.7 288 320zM224 480C224 462.3 238.3 448 256 448L544 448C561.7 448 576 462.3 576 480C576 497.7 561.7 512 544 512L256 512C238.3 512 224 497.7 224 480zM128 440C150.1 440 168 457.9 168 480C168 502.1 150.1 520 128 520C105.9 520 88 502.1 88 480C88 457.9 105.9 440 128 440z\" style=\"align:left\" \u002F>\u003C\u002Fsvg>\n\u003Ch4 class=\"text-lg \"style=\"color:#08CF65\">Checklists\u003C\u002Fh4>\n\u003Cp class=\"mt-2 theme-dark-green-lighter text-theme-dark-green tracking-wide subtle-bold-spaced\" >Use practical, downloadable tools to simplify your compliance journey.\u003C\u002Fp>\n\u003Csvg xmlns=\"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg\" viewBox=\"0 0 640 640\" style=\"max-height: 50px;\" fill=\"#04454d\" >\u003C!--!Font Awesome Free v7.2.0 by @fontawesome - https:\u002F\u002Ffontawesome.com License - https:\u002F\u002Ffontawesome.com\u002Flicense\u002Ffree Copyright 2026 Fonticons, Inc.-->\u003Cpath d=\"M320 205.3L320 514.6L320.5 514.4C375.1 491.7 433.7 480 492.8 480L512 480L512 160L492.8 160C450.6 160 408.7 168.4 369.7 184.6C352.9 191.6 336.3 198.5 320 205.3zM294.9 125.5L320 136L345.1 125.5C391.9 106 442.1 96 492.8 96L528 96C554.5 96 576 117.5 576 144L576 496C576 522.5 554.5 544 528 544L492.8 544C442.1 544 391.9 554 345.1 573.5L332.3 578.8C324.4 582.1 315.6 582.1 307.7 578.8L294.9 573.5C248.1 554 197.9 544 147.2 544L112 544C85.5 544 64 522.5 64 496L64 144C64 117.5 85.5 96 112 96L147.2 96C197.9 96 248.1 106 294.9 125.5z\"\u002F>\u003C\u002Fsvg>\u003Ch4 class=\"text-lg \"style=\"color:#08CF65\">Blogs\u003C\u002Fh4>\n\u003Cp class=\"mt-2 theme-dark-green-lighter text-theme-dark-green tracking-wide subtle-bold-spaced\" >Stay informed with actionable insights, tips, and the latest industry updates.\u003C\u002Fp>\n\u003Csvg xmlns=\"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg\" style=\"max-height: 50px;\" fill=\"#04454d\" viewBox=\"0 0 640 640\">\u003C!--!Font Awesome Free v7.2.0 by @fontawesome - https:\u002F\u002Ffontawesome.com License - https:\u002F\u002Ffontawesome.com\u002Flicense\u002Ffree Copyright 2026 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theme-dark-green-lighter text-theme-dark-green tracking-wide subtle-bold-spaced\">Learn from real-world examples that highlight challenges, solutions, and successes.\u003C\u002Fp>\n\u003Cdiv class=\"et_pb_column et_pb_column_4_4 et_pb_column_7  et_pb_css_mix_blend_mode_passthrough et-last-child\">\n\u003Cdiv class=\"et_pb_module et_pb_text et_pb_text_2  et_pb_text_align_left et_pb_bg_layout_light\">\n\u003Ch2 class=\"et_pb_text_inner\">Choose a category below\u003C\u002Fh2>\n\u003C\u002Fdiv>\n\u003C\u002Fdiv>\n\u003Cdiv style=\"display:flex; align-items:center;\">\n    \u003Ca href=\"{{full_url}}\" class=\"link-lift\" style=\"display:flex; align-items:center; font-size:18px; text-decoration:none; transition: transform 0.15s ease;\" style=\"color:#0284c7\">\n        \u003Cimg src=\"{{icon}}\" style=\"height:40px; \" alt=\"{{ title }}\" class=\"object-contain\">\n        \u003Cspan style=\"margin-left:10px\">{{ title }}\u003C\u002Fspan>\n    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