This draft guidance has been developed as an action of the Climate Action Plan 2019 (Action 50d) to develop guidance for retrofitting traditional buildings. Its purpose is to update and build upon the advice and principles included in the existing Advice Series publication ‘Energy Efficiency in Traditional Buildings’ (Department of the Environment, Heritage and Local Government, 2010) in order to provide clear and robust advice to professional users, such as specifiers and installers, while being accessible to a wide audience.

More information here.