Effective 6 April 2013.This edition has been updated to amalgamate Approved Document N: Glazing and also some overlapping guidance that is in Approved Document M: Access to and use of buildings. As well as these changes, Approved Document K’s references have been updated in the light of the harmonised standard related to ‘safe breaking’ and the testing methods, and the harmonised standard and National Annex related to resistance of loads for barriers. Tables and diagrams have been amended and simplified, key terms have been updated and there is now an index. There are no new technical requirements.This Approved Document has a fresh new look and has been totally re-designed into a single column format to make reading. It has also been subject to a thorough editorial review to make the text/content more reader-friendly and simpler to assimilate and understand.Contracts and Management Publications Update Service:To ensure that you have the most up-to-date Approved Document or Amendment to an Approved Document to hand, you can now join our CAMPUS service. RIBA Bookshops will automatically send you copies of new releases as and when they are published. Visit our CAMPUS page for further details.
This guide is referred to in the 2013 edition of Approved Document L2A and the 2010 edition of Approved Document L2B (as amended in 2013) for non-domestic buildings as a source of guidance on complying with Building Regulations requirements for space heating and hot water systems, mechanical ventilation, comfort cooling, fixed internal lighting and renewable energy systems.
This guide is referred to in the 2013 edition of Approved Document L1A and the 2010 edition of Approved Document L1B (as amended in 2013) for dwellings as a source of guidance on complying with Building Regulations requirements for space heating and hot water systems, mechanical ventilation, comfort cooling, fixed internal and external lighting and renewable energy systems.
Part L (2013 edition, effective 6 April 2014) requires new non-domestic buildings to be 9% more energy efficient than those built under the 2010 edition's standards. This 2013 edition contains a 'concurrent notional building specification' where, if a building is designed and built entirely to it, it would meet the required Target Emission Rate. The Approved Document advises the designer and builder that using the specification may not be the most economic solution for the building. The focus is on building fabric and efficient services being the most effective way of achieving energy efficiency targets in buildings at present. The option for quality assured building detailing has been taken out of the new documents with the only alternative to nothing now being Accredited Construction Details.
(2006 edition incorporating 2010 and 2013 amendments)Approved Document B: Fire Safety covers building work in England and Wales, such as the erection, extension or material alteration of a building, and how fire safety is designed into a building.The Approved Document has been split into two volumes, Volume 1 deals with dwellinghouses and Volume 2 deals with buildings other than dwellinghouses.Volume 1 includes updated standards for smoke alarms.Contracts and Management Publications Update Service:To ensure that you have the most up-to-date Approved Document or Amendment to an Approved Document to hand, you can now join our CAMPUS service. RIBA Bookshops will automatically send you copies of new releases as and when they are published. Visit our CAMPUS page for further details.
(2006 edition incorporating 2010 and 2013 amendments) Approved Document B: Fire Safety covers building work in England and Wales, such as the erection, extension or material alteration of a building, and how fire safety is designed into a building. The Approved Document has been split into two volumes, Volume 1 deals with dwellinghouses and Volume 2 deals with buildings other than dwellinghouses.Volume 2 includes amendments to the guidance on wall coverings and thermoplastic lighting diffusers and rooflights.Contracts and Management Publications Update Service:To ensure that you have the most up-to-date Approved Document or Amendment to an Approved Document to hand, you can now join our CAMPUS service. RIBA Bookshops will automatically send you copies of new releases as and when they are published. Visit our CAMPUS page for further details.
Effective 6 April 2013. This edition reduces the range of electrical installation work that is notifiable. In addition, installers who are not registered competent persons can now use a competent person to certify work as an alternative to using building control. The technical guidance throughout now refers to BS7671:2008 incorporating Amendment No 1:2011. This Approved Document has a fresh new look and has been totally re-designed into a single column format to make reading. It has also been subject to a thorough editorial review to make the text/content more reader-friendly and simpler to assimilate and understand. Contracts and Management Publications Update Service: To ensure that you have the most up-to-date Approved Document or Amendment to an Approved Document to hand, you can now join our CAMPUS service. RIBA Bookshops will automatically send you copies of new releases as and when they are published. Visit our CAMPUS page for further details.
Effective 1 July 2013.This edition is updated in the light of the European Construction Products Regulations 2011, and particularly confirms the requirement that building products covered by a harmonised European standard should normally have CE marking. Guidance on resistance to moisture and substances in the subsoil has been deleted as it is in Approved Document C, as have examples of materials susceptible to changes in their properties.This Approved Document has a fresh new look and has been totally re-designed into a single column format to make reading. It has also been subject to a thorough editorial review to make the text/content more reader-friendly and simpler to assimilate and understand.Contracts and Management Publications Update Service:To ensure that you have the most up-to-date Approved Document or Amendment to an Approved Document to hand, you can now join our CAMPUS service. RIBA Bookshops will automatically send you copies of new releases as and when they are published. Visit our CAMPUS page for further details.
Part L (2013 edition, effective 6 April 2014) requires new build homes to be 6% more energy efficient than those built under the 2010 edition's standards. In addition, there are new requirements for fabric energy efficiency and they come in two flavours - Dwelling Fabric Energy Efficiency and Target Fabric Energy Efficiency. Section 2 covers the requirements and provides helpful further guidance. At the same time there is a change in the way CO2 emissions are calculated using a new system which results in a 'concurrent notional dwelling specification' or the elemental recipe. Designers and builders should find this 2013 edition easier to understand and hopefully feel more confident that they will be able both to show compliance and sign off the calculations with fewer redo's. This 2013 edition also explains that 'if the actual dwelling is constructed entirely to this specification it will meet the Target Emission Rate and better the TFEE rate'. The specification assumes for example, 100% energy efficient lighting, SEDBUK 89.5% efficiency for the mains gas boiler, and natural ventilation. Section 5 provides the specification and guidance. It stresses that following the specification may not provide the most cost efficient option for the project and encourages exploration of alternative options, provided the end result complies with the 'limiting fabric parameters' elsewhere in the AD. The parameters - elemental backstops - have not changed from the 2010 edition. This Approved Document contains an abridged version of the BRE's SAP 2012 (October 2013, 9.92 edition). For use in England.
Building Regulations Part L: Approved Document L1B Conservation of fuel and power in existing dwellings (2013 edition, effective 6 April 2014) requires a 25% improvement 2006 standards for every new home. An aggregate approach for improvement of new non-domestic buildings delivers an improvement of 25% overall, rather than for each individual building. This is because there is greater variety among non-domestic buildings and some will be much easier than others to make efficient. The changes to Part L increase the minimum levels of energy efficiency for building fabric and services, so that CO2 targets cannot be achieved through renewables alone. This reflects the principle of reducing overall demand for energy. The measures also come into play when people elect to carry out work to existing buildings including extensions and conversions, fabric renovations, replacement windows and boilers.
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