Evaluation of thermal properties of insulation systems in pitched roofs Alexey Zhukov, Armen Ter-Zakaryan, Ekaterina Bobrova, Igor Bessonov, Andrey Medvedev, Vitaly Mukhametzyanov and Alexey Poserenin E3S Web Conf., 91 (2019) 02047 Published online: 02 April 2019 DOI: 10.1051/e3sconf/20199102047