Effect of forced convection on the hygrothermal performance of a wood frame wall with wood fibre insulation

Wood-based thermal insulation materials have interesting hygroscopic characteristics because of their high moisture capacity. The present paper investigates the conditions in wood-frame walls with wood fibre insulation. effect forced convection moist air into construction is studied particular. Laboratory measurements were carried out on a full-scale wall model divided five sections various configurations. had different combinations exterior barrier, and interior vapour retarder. Each section was prepared an leakage to simulate supply through convection. measurement results provided insight internal distribution sections. show that may same risk levels as mineral wool However, indicate absorbs condensation melting water, while does not. Hence, imply has benefit distributing over larger volume than Furthermore, investigations using barrier resistance generally lower level construction, which can be considered favourable regarding mould growth. • Wood or glass give walls. temporarily absorbing free water. Wind barriers levels.