The 145 year old rural case building presented in this paper has undergone a deep renovation including internal insulation of the external walls to reduce the heat loss and improve the indoor thermal comfort. The internal insulation was a PUR-based insulation with channels of calcium silicate, experiencing to some extent capillary active behaviour. Sensors were installed between the existing wall and the internal insulation to monitor the development of hygrothermal conditions. The external fa ade was later hydrophobized with a water repellent agent to minimize the wind driven rain load. Measurements show that it takes time to get rid of the built-in moisture due to the application of internal insulation, however the moisture content expressed in relative humidity is slowly decreasing, although still high about two years after hydrophobizing the wall. Simulations show that the order of hydrophobizing the wall and applying internal insulation is important to promote drying of the wall.
|IOP Conference Series: Earth and Environmental Science
|Udgivet - 26 okt. 2021
|SBE21 Sustainable Built Heritage: Renovating Historic Buildings Towards a Low-Carbon Built Heritage - Bolzano-Bozen, Italien
Varighed: 14 apr. 2021 → 16 apr. 2021
|SBE21 Sustainable Built Heritage: Renovating Historic Buildings Towards a Low-Carbon Built Heritage
|14/04/2021 → 16/04/2021
Bibliografisk noteFunding Information:
RIBuild has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 637268. The project ‘Moisture safe energy renovation of worth preserving external masonry walls’ received funding from the Danish foundations: The Landowners’ Investment Foundation, The National Building Fund and Realdania. The Danish part of IEA-SHC Task 59 received funding from the National Energy Technological Development and Demonstration program (EUDP) under grant agreement No 64017-05175.
© Published under licence by IOP Publishing Ltd.
- Deep renovation
- Historic building
- Internal insulation