Energy efficiency retrofit

Making all buildings sustainable

Discover how standards can help your construction organization work to retrofitting best practices

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Raising the bar on retrofit: Supporting sustainability through standards

Climate change and its devastating effects have led to a greater emphasis on energy efficiency in the built environment. Last June the UK government committed to a new plan for the environment: net zero carbon emissions by 2050. The EU objective is to achieve Near Zero Energy Buildings throughout Europe. Ensuring homes are energy efficient plays a significant part in this. Making existing homes more energy efficient is important, but there are many examples of poorly designed and implemented retrofit work that has had unintended consequences, from encouraging mould and condensation to increased fire risk. Some retrofit work has made buildings less sustainable and, in some cases, less energy-efficient, generating more carbon than has been saved. A more informed and professional approach is therefore necessary. To read more on the topic of achieving net zero in the built environment, click here. How Do Standards Support Retrofit Work? Retrofit standards support those objectives by promoting and defining technically robust and responsible whole-building domestic retrofit work. PAS 2030:2023 Installation of energy efficiency measures in existing dwellings. Specification and PAS 2035:2023 Retrofitting dwellings for improved energy efficiency. Specification and guidance Sponsored by the UK Government’s Department for Business, Energy, and Industrial Strategy (BEIS), PAS 2030 and PAS 2035 on retrofitting dwellings are key documents in a framework of new and existing standards on how to conduct effective energy retrofits of existing buildings. For organizations conducting energy efficiency work, the PAS 2030 and PAS 2035 standards provides vital guidance on the industry best practices for retrofit of dwellings. BS 40101 Building performance evaluation of occupied and operational buildings (using data gathered from tests, measurements, observation and user experience). Specification They say if you can measure it, you can manage it. This is why it’s so important to evaluate the performance of buildings in a systematic and standardized way. BS 40101 is the standard that provides guidance on the approaches used to evaluate actual building performance, the identification of performance parameters that warrant attention in specific circumstances, and the expertise required of individuals undertaking different degrees of building performance evaluation. The endgame is that evaluations generate information that can help close the performance gap between the intended and actual performance of buildings. The benefits of BS 40101 to your retrofit work include: Make quicker progress towards net-zero Reduce waste and running costs Improve the health and well-being of building occupants Drive improvements in how building fabric and structure perform long-term Improve the efficiency and expertise of individuals engaged in building performance evaluation BS 40101 and over 100,000 more internationally recognized standards are available for simple and flexible access with a BSI Knowledge subscription. The flexibility and visibility it provides of the best practice guidance enables you and your team to get the most from standards before, during, and after your retrofitting activities. Request to learn more. PAS 2030 and PAS 2030: A Deep Dive PAS 2030 specifies requirements for installing energy efficiency measures in existing homes and residential park homes. It includes requirements on installation processes, process management, and service provision. It also deals with criteria on installation methods, equipment, tools, and product or system and material suitability. It covers how to commission “installed measures”, and the training, skills, and vocational qualifications of the people who do these installations. Whereas PAS 2035 is the over-arching document in the retrofit standards framework introduced following the recommendations of the Each Home Counts Review. PAS 2035 essentially provides a specification for the energy retrofit of domestic buildings and details best practice guidance for domestic retrofit projects. To underline, the significant difference is that PAS 2030 is a deep dive into retrofit installations themselves, whereas PAS 2035 takes a more end-to-end look at the assessment, design, and evaluation of domestic retrofits. What are the Benefits of PAS 2030 & PAS 2035 to Organizations? Organizations that trade using the government’s Trustmark quality scheme, including commercial contractors, specialist installers, and local builders and tradespeople, will need to comply with the requirements of PAS 2035. In addition, PAS 2035 should also be used when installers want to work under the Energy Company Obligation (ECO) – a scheme where medium and large energy suppliers fund the installation of energy efficiency measures in British households. But as well, PAS 2035 in tandem with PAS 2030, is designed to be a highly useful and inspiring document. It gives guidance on retrofit building physics, covering building pathology and thermal models and calculation. It gives practical guidance on approaches to retrofit via medium-term improvement plans or at scale. It looks at retrofit coordination, risk management, whole building appraisal, and at retrofit monitoring and evaluation on three levels: basic, intermediate, and advanced. It also sets out how to advise building occupants about improvement options appropriate to their homes and the efficient and appropriate use and maintenance of their retrofitted homes. It even covers how to feedback lessons learned to all parts of the supply chain, including building occupants. Add PAS 2030 and PAS 2035 to your collection today.

Retrofit Infographic: Discover our retrofit framework

Discover the benefits of PAS 2035/2030 and BS 40101. The UK’s Climate Change Act, as amended in 2019, sets out the statutory objective of achieving net-zero greenhouse gas emissions by 2050. This will require the reduction of all greenhouse gas emissions associated with energy use in buildings to the lowest possible level, in the context of a net zero balance between energy supply and demand. Retrofitting is the act of fitting new systems designed for high energy efficiency and low energy consumption to buildings previously built without them. The act of retrofitting buildings aligns construction businesses with the UN Sustainable Development Goals, contributing to Goal 3 on good health and well-being, Goal 7 on affordable and clean energy, Goal 9 on industry, innovation and infrastructure, Goal 12 on responsible consumption and production, and Goal 13 on climate action. To help your business get to grips with the tools we have to support with retrofit work, we have launched our Retrofit Framework Infographic. Key Retrofit Standards Our Retrofit Framework Infographic highlights the key standards that offer best practice guidance when it comes to conducting energy retrofits of existing buildings. These standards include: PAS 2035/2030 Retrofitting dwellings for improved energy efficiency. Specification and guidance. Sponsored by the UK Government’s Department for Business, Energy, and Industrial Strategy (BEIS), PAS 2035/2030 on retrofitting dwellings is a key document in a framework of new and existing standards on how to conduct effective energy retrofits of existing buildings. PAS 2035/2030 on retrofitting dwellings can be adopted by all those engaged in the management, design, and installation of energy efficiency measures in existing buildings. Download our Retrofit Framework Infographic today to learn more. BS 40101:2022 Building performance evaluation They say if you can measure it, you can manage it. This is why it’s so important to evaluate the performance of buildings in a systematic and standardized way. BS 40101:2022 is a newly published standard that provides guidance on the approaches used to evaluate actual building performance, the identification of performance parameters that warrant attention in specific circumstances, and the expertise required of individuals undertaking different degrees of building performance evaluation. The endgame is that evaluations generate information that can help close the performance gap between the intended and actual performance of buildings. This standard can help stakeholders to: Make quicker progress towards net-zero Reduce waste and running costs Improve the health and well-being of building occupants Drive improvements in how building fabric and structure perform long-term Improve the efficiency and expertise of individuals engaged in building performance evaluation BS 40102 Health and well-being and indoor environmental quality in buildings The BS 40102 series of standards are currently in development, to be published in 2022. The objective of this standard series is to define robust and appropriate technical standards for thermal comfort and internal air quality, for adoption in whole building retrofit projects, in order to ensure improved health and wellbeing of residents, occupants, and visitors. The standard will establish a framework for the assessment of buildings to identify where issues occur and to set requirements for monitoring and evaluation of health and wellbeing parameters. In recent years, regulatory and commercial pressures have led designers, constructors, building owners/landlords, tenants, and maintenance teams to focus on reducing operational energy costs. It will be split into two parts. Part 1: Health and Wellbeing in Buildings will give recommendations for the measuring, monitoring, and reporting of the well-being and IEQ (indoor environmental quality) performance of an occupied building and the associated building services. It will provide an evaluation and rating system, the aim of which is to enhance IEQ, create healthier buildings and improve the well-being of building occupants. Part 2: Thermal Comfort, Indoor Air Quality and Overheating will expand on issues raised by Part 1, to develop a best practice approach to thermal comfort, overheating, and internal air quality. BS 40104 Assessment of dwellings for retrofit BS 40104, whose publication is anticipated for 2023, will aim to provide standardization of the method of retrofit assessment described in PAS 2035/2030. This assessment is completed as part of the process that records vital evidence to the stakeholders in the process. The standard will provide requirements for the level of expertise needed for the role. Our range of retrofitting standards and documents are available for simple and flexible access with a BSI Knowledge subscription. The flexibility and visibility it provides of the best practice guidance enables you and your team to get the most from standards before, during, and after your retrofitting activities. Request to learn more. Ensure your organization is working to retrofit best practices, add these key standards to your collection today.

Energy efficiency retrofit

Making all buildings sustainable

Raising the bar on retrofit: Supporting sustainability through standards

Retrofit Infographic: Discover our retrofit framework

Key Retrofit Standards

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