NatHERS Technical Note (Version June 2019)
The final of the new NatHERS Technical Note (version June 2019) is now available on the NatHERS website.
Key changes in this final version include:
- Revised text for the previous clause 2.4 (now moved to clause 9.4) to clarify the intent regarding electrical documentation.
- Amended text for clause 8.3 to include custom window substitution guidance.
Assessors must use Technical Note (version June 2019) for all NatHERS assessments commenced from 1 June 2019. For NatHERS assessments commenced prior to 1 June 2019, assessors may use the requirements outlined in Technical Note 1 (version 1.2 –; 2014) or Technical Note (version May 2019). If the Certificate is produced after 1 June 2019, but the assessment was commenced prior to 1 June 2019 and Technical Note 1 (version 1.2 –; 2014) or Technical Note (version May 2019) was used, this should be noted in the ‘additional notes’ section of the NatHERS Certificate.
Important Note: The NatHERS Star Newsletter distributed on Wednesday 22 May 2019 included an extract of the proposed changes to Clause 8.3 regarding custom windows substitution. There was an error in this draft text, which has been corrected in Clause 8.3 of the new NatHERS Technical Note (version June 2019).
Please email the NatHERS Administrator at firstname.lastname@example.org or contact your Assessor Accrediting Organisation if you have any questions on using the new NatHERS Technical Note.