20 South West Building & Construction


June 2010 EXETER AND CREDITON AREA Key changes in Part L regulations JAMES Blackburn of


Carbon.gc Ltd highlights some of the key changes under the new 2010 Approved Documents for Part L (conservation of fuel and power) of the Building Regulations


1. 25 per cent less CO2 emissions than in 2006. Part L1A 2010 - for new


dwellings - aims to reduce CO2 emissions by 25 per cent over Part L1A 2006. This is a 40 per cent improvement over a dwelling built to the 2002 regulations and corresponds roughly with the trigger point for Code for Sustainable Homes Level 3, in line with the Government’s strategy for getting


new build dwellings to zero carbon by 2016. 2. Air Permeability - more


pressure testing. The volume of pressure testing required will roughly double. A pressure test should be carried out on three units of each dwelling type or 50 per cent of the instances of the dwelling type, whichever is the smaller. 3. Low energy lighting - 100 per cent counts towards meeting the target emissions rate. A minimum of 75 per cent of


light fittings must be low energy. If further light fittings are also


low energy, the full 100 per cent will contribute towards meeting the target emissions rate (TER). 4. New limiting U-values - including for party walls. Roof (2006 figure followed by 2010 requirement), 0.25, 0.20; external wall, 0.35, 0.30; party wall, N/A, 0.20; floor, 0.25, 0.25; windows, 2.20, 2.00; and air permeability, 10, 10. *James Blackburn is a director at Carbon.gc Ltd. To contact Carbon.gc Ltd for more information and design/Part L consultation, call 01392 248567 or email info@carbongc.com.


Geotechnical consultancy


Ground Investigation Services 65 Langaton Lane, Pinhoe, Exeter EX1 3SP


Tel: 01392 678082


Email: mail@ruddlesden.co.uk Web: www.ruddlesden.co.uk


Geotechnical & Environmental Consultancy


RUDDLESDEN geotechnical ltd provides geotechnical and environmental consultancy and site investigation services. The Exeter-based company carries out work on behalf of a wide client base from developers and building contractors to local authorities and private individuals. The projects Ruddlesden geotechnical provides consultancy for range from single dwellings and extensions to housing estates, industrial units, roads, schools and hospitals. Tel 01392 678082. Email: mail@ruddlesden.co.uk. Web www.ruddlesden.co.uk.


01392 248567 Call us for an instant quote or advice


The South Wests only end to end Part L professionals.


Commercial ● SBEM Calculations ● New Build Commercial EPC's ● BREEAM Assessments ● Commercial Energy Statements ● Commercial EPC ● Energy Audits ● DECs


Residential ● SAP Calculations ● New Build EPC's ● Air tightness testing ● Code For Sustainable Homes ● Residential Energy Statements ● Domestic EPC ● Extensions


Call us to find out how we can help you www.carbongc.com


Hems Court, Longbrook St, Exeter, EX4 6AP T. 01392 421600 F. 01392 422891 Email: sands@sands-consultants.co.uk


www.sands-consultants.co.uk


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24