old wood windows

Durability of airtightness – and more generally of thermal performances – is an important question at both building and component levels. Its assessment is complicated in practice mainly due to the logistical aspects of those long duration studies and experiments. One can conduct laboratory tests with artificial ageing or deduce information from repeated in-situ tests or data analysis of existing components. In this paper, we describe two projects relevant in this context. On one hand, HAMSTER is a new bi-climatic chamber installed in 2022 in Brussels.