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New in-line Solar PV and Air Permeable Underlay Guidance

  • dcb1960
  • 2 days ago
  • 1 min read

New guidance means housebuilders can now use integrated (or in-line) solar PV together with Proctor Air®, confident that they are meeting all relevant technical requirements. We have an alternative BBA approved solution which negates the requirement for double battening and ventilation to help meet the 2024 changes to *NHBC Technical Standards, provided A Proctor Group and BBA recommendations are followed.


Illustration of roof ventilation with pink insulation, blue arrows indicating airflow, and dark solar panels. Text reads "NOIR."

Backed by leading moisture experts in the UK and Europe, the guidance is also reflected in an update to Proctor Air’s BBA certificate. That means designers and specifiers can follow the guidance in the knowledge that it has been assessed by an independent third party.


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