Is energy efficient housing sustainable if it has a life time of some decades?

Energy efficient housing in Finland is built with plastic based and other materials, and nobody actually knows the lifetime of these buildings. There are many problems with these buildings, some leading to them being demolished. Compared to an old log building, which isn’t as energy efficient, which is in long term more sustainable? An energy efficient building with a life time of 30 years, or a more inefficient building with a lifetime of several hundred years?