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Mark Nelson Business Engagement Officer, MaCaW Project, University of Central Lancashire


@MaCaWLancs company/macaw-project


FOUR ESSENTIALS FOR A LOW


CARBON RETROFIT Upgrading or renovating a commercial or domestic building? It’s the perfect opportunity to upgrade the carbon performance too.


Passivhaus Development


Mark Nelson is business engagement officer with MaCaW, the University of Central Lancashire’s Making Carbon Work project, part- funded by the European Regional Development Fund (ERDF) and supported by Boost, Lancashire’s business growth hub.


He explains:


1. Define the opportunities Every building will offer different opportunities and challenges. To understand them, you’ll need to assess the entire building, rather than focusing on a single area, because so many elements affect others. A full audit is essential.


2. Balance risk and benefit Caroline Jackson


building up our knowledge of Passivhaus construction. The process itself is not hugely technical, but it is very clever.”


Though cost is an issue now, he believes that, as the technology is developed and becomes more common, prices will fall to a point where the finances stack up for large scale homebuilders.


Cath Purdy, chief executive of SLH, says the aim of Passivhaus building is to help achieve “affordable warmth” while reducing the environmental impact.


She says: “We must all play a part if we are to decarbonise our economy and we need homes that are fit for purpose, that are affordable to heat, that are comfortable and healthy, which is so important to many families.”


The decarbonising path the construction sector is taking is clear. New homes and buildings in England will have to produce significantly less CO2


under new rules


announced by the government in December to help the country move towards net zero.


Under the new regulations, CO2 emissions


from new build homes must be around 30 per cent lower than current standards


Philip Helm


and emissions from other new buildings, including offices and shops, must be cut by 27 per cent.


Heating and powering buildings currently makes up 40 per cent of the UK’s total energy use.


The government says installing low carbon technology, such as solar panels and heat pumps, and using materials in a more energy efficient way to keep in heat will help cut emissions – lowering the cost of energy bills for families and helping deliver the UK’s climate change ambitions.


Under the new regulations, which will come into effect from June this year, all new residential buildings, including homes, care homes, student accommodation and children’s homes, must also be designed to reduce overheating, making sure they are fit for the future and protect the most vulnerable people.


Improvements to ventilation will be introduced to support the safety of residents in newly built homes and to prevent the spread of airborne viruses in new non- residential buildings.


Continued on page 50 LANCASHIREBUSINESSVIEW.CO.UK


Not every energy saving tool that works in a new build may work for a retrofit, such as solid wall insulation, so it’s important to ensure the measures you propose work in harmony with the building, protecting ventilation and guarding against damp.


3. Retrofit in the right order


Plan the refit to avoid waste and cost. Installing a new, energy efficient boiler or heat pump and insulating the building? Make the building more energy efficient first so the equipment can be matched to the new heating requirements of the building, not the old.


4. Engage the occupants


The simplest way to reduce carbon is to conserve energy. That can only be done by the people who’ll be using the building day to day. Ensure they build on the good work of the retrofit by engaging them on ways they can minimise their carbon footprint.


For help in making your low carbon


retrofit more successful, talk to us on 01772 893963 or macaw@uclan.ac.uk or visit www.macawlancs.co.uk


49


CONSTRUCTION


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