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Residential renovations across Australia are no longer just about aesthetics – they are performance-critical upgrades that must align with evolving energy efficiency standards.
Whether you are undertaking a major extension, deep retrofit, or multi-residential upgrade, airtightness testing is now a key validation tool to ensure your building envelope performs as designed.
At Aerotight, we don’t just test – we Aerotight your renovation strategy, embedding measurable airtightness outcomes aligned with NCC requirements, ISO testing standards, and Green Star performance pathways to improve your building performance.
Renovation projects introduce complexity that new builds often avoid—interfaces between old and new construction, unknown leakage pathways, and inconsistent detailing.
Without verification, these risks result in:
The NCC explicitly requires that building envelopes are sealed to minimise uncontrolled air leakage and improve energy efficiency outcomes .
Aerotight testing ensures your:
Large-scale renovations often expose weaknesses in:
Aerotight ensures the upgraded building envelope performs as a continuous airtight system, not a patchwork of old and new.
For projects targeting Passive House or low-energy certification, airtightness is non-negotiable.
Aerotight delivers:
In Class 2 buildings, airtightness becomes more complex due to:
Our Aerotight methodology defines:
While residential renovations may fall under different compliance pathways depending on scope, airtightness plays a growing role across:
Airtightness testing is increasingly used to:
Aerotight integrates directly into your Green Star submission strategy, providing measurable performance evidence.
All Aerotight testing is performed in accordance with:
This ensures your results are:
The National Construction Code (NCC) is changing how building envelopes are designed and delivered across Australia.
Renovation and retrofit projects must now address both energy efficiency and condensation risk.
Aerotight helps project teams meet these requirements through verified airtightness testing and envelope diagnostics.
We verify the performance of vapour-permeable membranes in Climate Zones 4–8, ensuring moisture escapes the wall cavity while the air seal remains intact.
For commercial buildings, air leakage can significantly affect HVAC performance and energy modelling outcomes. Blower door testing provides measured airtightness data that supports compliance with building sealing provisions.
We help you hit specific targets, from standard compliance (5 m3/hr/m2 ) to Passive Hous+e EnerPHit standards (<1.0 ACH50).
We don’t just test buildings – we Aerotight outcomes.
The earlier, the better. Ideal engagement points:
Waiting until completion introduces unnecessary risk – and limits your ability to fix defects cost-effectively.
Real-world airtightness results across Australia, delivered by Aerotight. Explore how precision testing, compliance expertise, and proven outcomes help projects meet strict performance standards with confidence.
Hear directly from builders, architects, and project teams across Australia who trust Aerotight for accurate testing, smooth compliance, and dependable results on every project.
Testing is conducted under AS/NZS ISO 9972, referenced by the NCC for verifying building sealing performance.
Yes - particularly for applicable Class 2+ or mixed-use developments, supporting building sealing verification and modelling.
We go beyond testing - delivering Aerotight strategies, diagnostics, and compliance-driven outcomes tailored to your project.
If your project involves:
Then airtightness testing is no longer optional – it’s essential.
Partner with Aerotight to ensure your renovation performs as designed, complies with Australian standards, and delivers measurable results.
Need airtightness testing for compliance or project verification? Submit the form and our team will reach out to you shortly.
