Long-term on-site assessment of hygrothermal performance of interior thermal insulation system without water vapour barrier

• Published in: Energy and buildings Vol. 41; no. 1; pp. 51 - 55
• Main Authors: Toman, Jan, Vimmrová, Alena, Černý, Robert
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier B.V 2009; Elsevier
• Subjects: Applied sciences; Brick wall; Building insulation; Buildings; Buildings. Public works; Exact sciences and technology; External envelopes; Hydrophilic mineral wool; Hygrothermal performance; Interior thermal insulation system; Leakproofness; On-site assessment; Thermal insulation; Water vapour retarder; On-site assessment; Interior thermal insulation system; Hygrothermal performance; Brick wall; Hydrophilic mineral wool; Water vapour retarder; Performance evaluation; Relative humidity; Hygrothermal control; Instruments; In situ; Indoor climate; Thermal insulation; Brick masonry; Retarder; Water vapor; Long term; Building wall; Mineral wool; Water barrier
• ISSN: 0378-7788
• DOI: 10.1016/j.enbuild.2008.07.007

On-site assessment of hygric and thermal performance of an interior thermal insulation system on the basis of hydrophilic mineral wool is presented in the paper. The system is applied during the summer period on a brick-built house from the end of 19th century. Hygrothermal testing is done during the time period of 4 years. The reconstructed building envelope exhibits very good hygrothermal performance. The thermal resistance increases approximately two times. Water condensation is never observed inside the envelope during the whole testing period. A comparison with the previous experiment in semi-scale conditions which was performed for similar insulation system constructed during the winter season shows that the precedence should be given to the application of the system in summer period as it is more considerate to the old masonry.