When will I need to comply with these changes?
Government is expected to publish the final document containing new Part L and Part F Regulations mid-2020, including any consultation changes to their original proposal. This is then expected to become legally enforceable before the end of the year.
What are the proposed compliance metrics?
The consultation proposed four compliance metrics for new developments: primary energy, carbon emissions, affordability and minimum standards for building fabric and building services.
What’s the difference between Option 1 and Option 2?
Industry was given the chance to review how challenging they wanted the update to Part L to be, by stating whether they would prefer a 20% or 31% uplift in carbon emission targets compared to 2013 standards. This will not change the minimum standards for U-values.
The need for a new strategy
The Government’s proposed update to Part L and Part F is driven by four main goals, all of which affect HVAC specification and aid towards the achievement of future environmental targets:
- Align with future targets for new houses (a 75-80% carbon reduction target in 2025)
- Simplify guidance to make the Building Regulations clearer to understand
- Reduce the performance gap of new dwellings
- Comply with the Energy Performance of Buildings Directive
In order to do this, there are significant changes to the requirements for new dwellings; including the introduction of four compliance targets and a shift in the way ventilation systems are specified and designed.
Begin to create new HVAC strategies ready for Part L and Part F 2020
Research hybrid solutions where hot water can be produced in a low carbon and low primary energy way, such as hot water heat pumps
Understand potential Part F applications for natural and mechanical ventilation
For larger developments, understand what the 2025 requirements may be as this could affect dwellings being planned today
Request our CPD to further discuss the changes
Request our Future Homes Standard CPD
Using the supporting SAP 10 BETA software, we have created a new CPD analysing the potential impact of the Future Homes Standard consultation on 2020 HVAC specification.