BUILDING FABRIC 53
GET ON TOP OF THE PART L CHALLENGE
Changes to Part L of the Building Regulations are planned to come into eff ect later this year as part of the Future Homes Standard, meaning a 31% reduction in new build carbon emissions. Stuart Nicholson of Marley explores why the inclusion of solar PV roofi ng could be a key solution.
W
ith the climate emergency once again having been highlighted at COP26 in Glasgow, the UK’s Net Zero Strategy – to be achieved by 2050 – is now beginning its transforma- tion from plans, policies, and aspiration into an everyday reality that will in u- ence and impact the way we live, move around, connect and work.
According to the Government’s Climate hange ommittee, the built environment accounts for around 0 of green- house gas emissions, with approximately 1 of this coming from the 2 million homes in the . As a major contributor to carbon emission damage, the role of households, and the need to make the nation’s housing stock more energy effi - cient, is central to the Net Zero Strategy, and that puts the future construction of sustainable new homes front and centre. As part of the move towards the crea- tion of more energy effi cient homes, 2022 sees changes implemented to Part L of the uilding egulations. hey come into force (with a one-year transition period where the old art rules can still be followed with the primary objective to direct the construction of new homes so they produce 1 lower carbon emis- sions.
he art changes are among a raft of other amendments in preparation for the introduction of the uture omes tandard in 202. rom that point, housebuilders and developers will be required to ensure all new homes are specifi ed and constructed to be highly energy effi cient, use low carbon heating solutions, and, ultimately, be ‘zero carbon ready.’
As a result, housebuilding teams, along with architects and specifi ers, need to de- sign sustainably and seek out the product solutions that will allow them to meet the robust carbon emission targets the sector is now faced with. he decisions currently being taken, as well as those over the coming months and years, will help to defi ne future achievement and the
housebuilding industry needs to be fully acquainted with the range of sustainable product answers it can access today.
THE ROLE OF SUSTAINABLE ROOFING SOLUTIONS
Improvement in new home energy effi ciency and resulting lower carbon emissions – cannot simply be delivered by enhancing the building fabric alone. It is widely anticipated the specifi cation of solar , with an effi cient gas boiler or a heat pump, will be the route favoured by housebuilders to achieve the required levels stipulated by art for this year. ousebuilders need to recognise that, in the short term, solar PV on the roof combined with an effi cient gas boiler appears to be the most time effi cient and cost-effective way for the sector to meet the new 2022 art carbon reduction obligations. his is in part because some
will already have a supply chain and trust- ed installers in place to enable an increase in specifi cation to be implemented.
SOLAR PV – FOR NOW AND THE FUTURE While many in the sector may have had prevailing concerns about the aesthetic appearance of solar PV, innovative ad- vances in both the look and performance of solar PV means legacy concerns can be overcome.
he latest and fully integrated solar roof systems offer a more visually appeal- ing, cost effective, and easier to install option. he integration benefi t means solar panels can simply replace a section of existing roof tiles to create a sleek aes- thetic, and deliver a seamless solution as part of the overall roof visual appeal. his type of integrated solar panel can also be installed at the same time as the roof tiles and dovetail with the busy build sched-
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