38 INSULATION
PREPARING FOR THE FUTURE HOMES STANDARD
The construction industry is facing a number of significant regulation changes over the coming years, including the recently completed consultation to Part L which will introduce significant energy efficiency challenges. James Hulbert of Knauf Insulation looks at how housebuilders should respond to the new agenda.
standards and requirements in prepara- tion for the Future Homes Standard – which is planned to be fully implemented by 2025. Option one requires a 20 per cent
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reduction in CO2 emissions compared to the current standard for an average home.
It is suggested this will be achievable through fabric improvements alone, and effectively represents the Future Homes Standard fabric. Option two, the Government’s preferred choice, requires a 31 per cent reduction in
he Approved Document L (ADL 2020) consultation proposes two options to uplift energy efficiency
carbon emissions compared to the current standard. This will be achieved through carbon-saving technology such as photo- voltaic panels, low and zero carbon technologies and better fabric standards, albeit not as high as in option one. At first glance, Regulation 25B within the Consultation – ‘Where a building is erected, it must be a nearly zero-energy building’ – may seem alarming. However, both options in the consultation will meet the definition of ‘nearly zero-energy building.’
The consultation includes four key
metrics: • Primary energy: incorporating the latest
evidence on primary energy and CO2 emissions of fuels, and removing fuel
factors in the calculation for high- carbon fossil fuels and electricity
• CO2 – the metric remains the same • Affordability: while electricity becomes
ever greener, wholescale adoption now would result in higher energy bills for occupants
• Minimum fabric standards: the fabric energy efficiency standard will be removed, instead the consultation lowers the limiting ‘backstop’ area weighted values for each [thermal] element. So, between the close of the consultation
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