For building consent, your window supplier should give you construction R-values for every window and door, the window and door specification and details, and evidence that the joinery meets NZS 4211 for your wind zone. For code compliance (CCC), you may also need a producer statement, warranties and maintenance information. With UNO Windows & Doors, the construction R-value report and technical files come straight from UNO Hub, so your consent package is ready when you are.
Last reviewed: November 2026
Since 27 November 2026, the previous editions of H1/AS1 and H1/VM1 (and H1/AS2 and H1/VM2) can no longer be used. The Schedule Method is gone, and every project now uses the Calculation Method or the Modelling Method, so accurate construction R-values for your windows and doors are a core part of the consent file. Read more in H1 Schedule Method removed: what does this mean for New Zealand projects?
Every council and project is different, so always check your consent conditions. As a guide, these are the window and door documents that come up most often:
| Document | What it shows | Often needed for | Where to get it from UNO |
|---|---|---|---|
| Construction R-value report | The construction R-value of each window and door, for the H1 Calculation or Modelling Method | Building consent | Generated in UNO Hub |
| Window and door schedule, specification and technical details | Suites, sizes, configurations, glass, sections and installation details | Building consent | UNO Hub technical files (PDF and DWG) |
| NZS 4211 performance evidence | Confirmation the windows and doors have been tested to NZS 4211 | Building consent | UNO suites are tested to NZS 4211. For SED projects, contact UNO |
| Producer statement – design (PS1) | A professional's statement that a specific design meets the Building Code | Building consent, where council asks | Typically for commercial projects with a specific bracket design, such as UNO Commercial Flushglaze. Contact UNO |
| Producer statement – construction (PS3) | A statement for the supply of the windows, or for their installation | Code compliance (CCC), where council asks | PS3 for the supply or installation of the windows. Contact UNO |
| Glass specification, including safety glazing | Glass type and thickness per opening, including toughened or laminated glass where NZS 4223.3 requires it | Building consent | UNO Hub (glass selected for each window and door) |
| Warranty and maintenance information | Warranty terms, how to claim and how to look after the joinery | Completion (handed to the owner) | UNO Hub (warranty documentation and care guidelines) |
Sources: this table is UNO's summary of the documents that come up most often, not an official council checklist. Construction R-values: H1/AS1 6th edition (MBIE). Window and door details: what councils typically ask for in a consent application; check your council's consent checklist. NZS 4211 evidence: NZS 4211:2008 (Codehub) and Auckland Council guidance AC2206. PS1 and PS3: Producer statements (MBIE). Safety glazing: NZS 4223.3:2016 (Codehub). Warranty and maintenance information: Building (Residential Consumer Rights and Remedies) Regulations 2014 and Once building work finishes (MBIE). CCC records: Get the build signed off (MBIE).
Under H1, the window and door R-value is the construction R-value of the whole unit (frame and glass together), not just the glass. For housing and buildings up to 300 m², the H1/AS1 Calculation Method compares your design against reference windows and doors of R0.46 in climate zones 1–4 and R0.50 in zones 5–6. The Calculation Method also needs glazing to be no more than 40% of the gross wall area.
For buildings over 300 m² under H1/AS2 and H1/VM2, the reference values are R0.33 (zones 1–2), R0.37 (zones 3–4), R0.40 (zone 5) and R0.42 (zone 6). Curtain walling, including UNO Commercial 100 mm and 150 mm frames, must be modelled under H1/VM1 or H1/VM2.
Your designer or H1 engineer needs real construction R-values for the joinery you are specifying. UNO Hub generates the construction R-value report for your project, based on the actual sizes, configurations, suites and glass. For example, typical UNO Hub results with Low-E Lightbridge double glazing are:
UNO recommends Low-E Lightbridge and Low-E Xcel across all climate zones. If your design needs more, Low-E Xtreme or Performatech can lift the R-value further. See the ideal R-value for housing and H1 requirements for commercial buildings.
Council processing officers need to see what is being installed and how. That usually means a window and door schedule (sizes, suites, opening types and glass), plus section and installation details that show how the joinery sits in the wall and keeps water out. UNO Hub gives residential, multi-residential and commercial teams UNO technical files in PDF and DWG, ready to drop into your drawing set.
UNO Thermal, UNO Non Thermal and UNO Commercial have been tested to NZS 4211. For any project needing specific engineering design (SED), contact UNO at spec@unowindows.co.nz.
A producer statement is a professional's opinion that a design or piece of work meets the Building Code. A PS1 covers design. Producer statements have no particular status under the Building Act 2004, but councils can accept them as evidence of compliance at their discretion. For windows and doors, a PS1 is typically related to commercial projects where there is a specific bracket design, such as UNO Commercial Flushglaze fixed back to the structure. Confirm the requirement early in the design stage so it lines up with your engineer's and council's expectations, and contact UNO if your council has asked for one.
When the build is finished, the owner applies for a code compliance certificate. Councils want a complete and accurate record of what was actually built, and they normally ask for items such as producer statements, records of work from licensed building practitioners and installation certificates. Councils say you should apply as soon as practical after the work is complete, and they will follow up if you haven't applied within two years of the consent being granted.
For windows and doors, the CCC file usually includes:
For residential building work, the building contractor must give the client copies of any guarantees or warranties for the materials used, including how to claim, whether they transfer to a new owner and whether they must be signed and returned. The contractor must also provide information on how to maintain the work where maintenance is needed to meet the Building Code's durability requirements or to keep a warranty valid. This applies regardless of the price of the work (Building (Residential Consumer Rights and Remedies) Regulations 2014, regulation 9, made under section 362T of the Building Act). UNO's full warranty information and care guidelines are available through UNO Hub, ready to pass on at handover.
Changing a window or door specification after consent can be straightforward where an equivalent-performing alternative is proposed. In many cases, this may be treated as a minor variation, recorded by council without an amended building consent. A change that alters the structure, the weathertightness strategy or the compliance pathway may require a formal amendment.
Either way, the Building Consent Authority (BCA) makes the final call, based on the supporting performance evidence and the effect of the change on Building Code compliance. UNO does not determine whether a change is a product substitution, a minor variation or an amendment, so check with your local BCA before proceeding.
Because window R-values feed straight into your H1 calculation, regenerate your construction R-value report in UNO Hub whenever the joinery changes. We cover the process in detail in changing windows and doors after consent.
*Typical construction R-values from UNO Hub for the stated sizes and configurations, with Low-E Lightbridge double glazing (Ug 1.1, SHGC 0.56) or the UNO door panel. R-values vary with size, configuration, glass and panel. Sign up to UNO Hub to generate the construction R-values for your project.
Your window supplier. With UNO Windows & Doors, UNO Hub generates the construction R-value report for your project's actual windows and doors, ready to give to your designer or H1 engineer.
Yes, more than ever. H1 compliance now uses the Calculation Method or Modelling Method, and both rely on the construction R-values of your windows and doors.
No. A PS1 is accepted at the council's discretion and is typically related to commercial projects with a specific bracket design, such as Flushglaze. If your council asks for one, contact UNO early so it doesn't hold up your consent.
Possibly. Substituting an equivalent-performing product may be treated as a minor variation, but it's up to your BCA, who make the final call. Update your construction R-value report so your H1 compliance still stacks up.
Construction R-value reports and technical files (PDF and DWG) for UNO Thermal, UNO Non Thermal and UNO Commercial are all in UNO Hub, so your consent documents are ready when your design is. Need a PS1, PS3 or shop drawings? Contact UNO.
Disclaimer
The information in this article is provided for general information purposes only and reflects the Building Code documents and standards current at the "Last reviewed" date shown on this article. It does not constitute technical, engineering or legal guidance for any specific project. Building Code documents and standards are subject to change; readers should refer to the current version of the relevant document and confirm all requirements with their designer, engineer and Building Consent Authority before proceeding. Construction R-values and product performance are project-specific and should be confirmed using the values generated in UNO Hub for the project concerned. UNO Windows & Doors accepts no liability for any loss or outcome arising from reliance on, or interpretation of, the information provided.