BSEN15978:2011Incorporating corrigendum November 2011BSI Standards PublicationSustainability of constructionworks一Assessment ofenvironmental performanceof buildings -CalculationmethodNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSEN15978:2011BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 15978:2011.CEN Correction Notice 23 November 2011 provided arevised English language text,incorporating the followingeditoral corrections:in tables 6,7,8 and 9,B3 has been corrected to read 'Repair'and B4 has been corrected to read 'Replacement';two sentences have been added to the beginning of Clause9.4.2The UK participation in its preparation was entrusted to TechnicalCommittee B/558,Sustainability of construction works.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract.Users are responsible for its correctapplication.The British Standards Institution 2012ISBN9780580774034Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2011.Amendments/corrigenda issued since publicationDateText affected31 January 2012Implementation of CEN Correction Notice23 November 2011