The paper analyses the insulation expediency of the external envelopes of the building with reference to 2E (energy – primary energy consumption and environmental – CO2 emissions) criteria and presents an overview of thermal insulation and studies on other structural elements based on life cycle analysis. The object of research is a typical residential building. The article determines different insulation materials of external envelopes, primary energy consumption and CO2 emissions by insulating walls from F to B and from B to A ++ class. Graphical interpretation shows primary energy, CO2 and the payback period of 60 years. Also, the paper considers primary energy and CO2 emissions distributed at various life cycle stages.

Article in: Lithuanian

Article published: 2014-10-24