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  • Standards Document
    PAS Standard

PAS 2035 - Retrofitting dwellings for improved energy efficiency

PAS 2035:2023 offers comprehensive guidance for energy retrofitting in existing homes, ensuring efficiency, sustainability, and improved performance.

Conduct effective retrofits with PAS 2035

This document:

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  • PAS 2035 sets out best practice for end to end energy efficiency and 'whole house' retrofits.

  • PAS 2035 is crucial for achieving net zero targets and decarbonization of the built environment.

  • Its use is mandatory for some government funded projects, ensuring aligned energy efficiency.

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