The risk
The rated window isn't the installed window — the label describes a standard-size sample that often gets swapped.
From the window on paper to the building that passes.
A compliant window isn't a compliant building. Between the two sits the install — and in Australia, that's exactly where responsibility falls through the gap. Here's the whole pathway from specified window to signed-off building, and who actually closes it.
The gap nobody owns
Everyone points somewhere else.
Ask who's responsible for getting a window installed to compliance and you end up going in a circle. The standards and the industry bodies point you to the manufacturer's installation instructions. The manufacturers point back to the industry guides. Round it goes — and the builder and installer are left in the middle, expected to carry the NCC and AS 2047 requirements for the window and its flashings on their own.
Standards & industry bodies
"Install per the manufacturer's instructions."
→
Manufacturers
"Refer to the industry installation & fixing guides."
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Left holding it
The builder and the installer — expected to know, detail and prove the NCC and AS 2047 requirements for the window and its flashings, for this project, in this climate, with no one independent standing behind the as-installed result.
It's not that nobody wrote anything down — there are install and fixing guides, and they're useful. It's that none of them take responsibility for your junction, on your site, to the evidence a certifier will actually accept. A whole chunk of the chain quietly fell between the cracks. That's the gap this pathway closes.
The pathway
Four stages from spec to signed-off — and where each one actually gets proven.
Specify the window
Closed by — BTW
Model the real window to ISO 15099: project-specific Uw, SHGC, Tvis, plus a built-in fRsi condensation screen.
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Install it
The risk
The interface leaks — water, air and heat move through the junction. Ad-hoc sealing, no documented method, no QA trail. This is the gap above.
Closed by — OPTISEALED
Map, train and certify the install to a required performance — product-neutral, and FGIA-credentialed.
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Verify it
The risk
Condensation, mould and air leakage you can't see until it's a callback — concentrated at the sealed interface.
Closed by — TIRS
TIRS MI-6 delivers the Mould Index evidence the NCC needs; Full TIRS adds the full-season picture; airtightness supported.
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Comply
The requirements
NCC energy (Section J), weatherproofing (F3 / H2), condensation (F8 / H4), and AS 2047.
The outcome
Certifier-ready evidence at every stage — so the certifier signs off on proof, not assumption.
Independent, end to end
The only party that covers both ends of the chain.
Most of the industry owns one link — the product, the sealant, the certificate — and hands the rest on. AFRC Lab is the independent third party that models the window and proves the installed interface, with the credential to stand behind the install side: one of only 41 FGIA (Fenestration and Glazing Industry Alliance) InstallationMasters Accredited Instructors worldwide, and the only one in Australia. We don't supply, sell or endorse products — we make the whole pathway defensible, whoever you buy from.
Independent & product-neutral. AFRC Lab provides verification data, method and training — it does not supply, sell or endorse any product or brand. Modelling and verification are project-specific thermal simulation to ISO 15099 / NFRC 100, with condensation assessed via the Mould Index (TIRS); results are indicative to the systems, details and conditions provided, and final NCC compliance is determined by your assessor or certifier. References to AS 2047 and NCC Parts are provided as general guidance to the applicable requirements, not as a compliance determination. The FGIA figure is as listed in the FGIA InstallationMasters Accredited Instructors directory and may change. AFRC Lab (Advanced Fenestration Research & Certification) is an independent company; it is not the AFRC and is not affiliated with WERS or the Australian Fenestration Rating Council. BTW and TIRS™ are trademarks of AFRC Lab Pty Ltd.