News 7 Building Regulations Part L updated


AFTER A LONG wait, the 2014 Approved Documents L1A and L2A have arrived, providing guidance on conservation of fuel and power in new buildings. However, as with previous changes, the 2010 documents continue to apply to projects where work started or an application was made before that date.


According to BSRIA, the most noticeable change for new dwellings is a requirement to calculate the fabric energy efficiency. This is in addition


to calculating CO2 emissions, which has been a requirement since 2006. Fabric energy


efficiency is measured in kWh/ m2 of floor area, and takes into account the space heating and cooling demand.


The CO2 emissions, on the other hand, are measured in


kg of CO2 per square metre of floor area and the calculation only takes cooling into account for dwellings that use mechanical cooling. To achieve compliance, both the fabric


energy efficiency and CO2 emissions must be below those of a notional dwelling. This notional dwelling has been redefined such that an emissions reduction of 6% is achieved, compared with


dwellings that meet 2010 standards. The methods of compliance for new non- dwellings have not changed


significantly, however the CO2 emissions reduction is greater than for dwellings – 9%. This means more energy efficiency measures will need to be incorporated, and even though renewables are not a requirement, more designs may incorporate them as a means of


achieving the CO2 target. Some of the minimum plant efficiencies, set out in the Non-domestic Building Services Compliance Guide have been upgraded – for example the


minimum efficacy of lighting in office, industrial and storage areas has been upgraded from 55 to 60 luminaire lumens per circuit-watt.


Changes to the Approved Documents for existing buildings – L1B and L2B – are minimal, says BSRIA. So much so, that they have been issued as an amendment slip. However, the association has been assured that consolidated versions of these Approved Documents will be issued before they come into effect on 6 April. BSRIA offers Building Regulations training including updates on the changes.


Chris Monson named honorary member of BSRIA


CHRIS MONSON of Trend has been awarded Honorary Membership of BSRIA. This is only the eighth time this honour has been awarded in the 58-year history of the association and the award is made to recognise an extraordinary contribution to the association and the independent promotion of best practice in the building services industry.


A leading figure in the building controls industry, Mr Monson has always been a supporter of best practice, values he shares with BSRIA. After helping to develop and run the BEMS Centre at BSRIA, he joined Council in 1989, and then the BSRIA Research Panel.


He was quickly recruited to the board and served uninterrupted from 1994 till 2010; in 1999 Mr Monson took on the role of chairman and served the association with distinction.


Commenting on the award Anne King, marketing director at BSRIA, said “I have worked with Chris throughout the time of his association with BSRIA. He has always been an excellent supporter of the association and a fantastic colleague on all the boards and committees where he has served. He is highly respected by everybody associated with BSRIA, as is demonstrated by his nomination for this award by his peers from across the industry at the BSRIA


Chris Monson (left) with Leslie Smith, BSRIA chairman.


Council.”


Arman Saeidnia, Trend’s managing director, commented: “This is an amazing achievement for Chris and I speak on behalf of all his colleagues here in congratulating him. He is a true ambassador for the


industry and is always striving to find new ways to enhance the vital role of building controls. His knowledge and experience are greatly valued at Trend and I’m delighted that he has received wider recognition through Honorary Membership of BSRIA.”


daikin.co.uk/acr efficiency redefined


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