Deep renovation of an old single-family house including application of an water repellent agent - A case story

E. J. De Place Hansen*, T. K. Hansen, V. Soulios

*Corresponding author for this work

Research output: Contribution to journalConference article in JournalResearchpeer-review

1 Citation (Scopus)
8 Downloads (Pure)

Abstract

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.

Original languageEnglish
Article number012034
JournalIOP Conference Series: Earth and Environmental Science
Volume863
Issue number1
ISSN1755-1307
DOIs
Publication statusPublished - 26 Oct 2021
EventSBE21 Sustainable Built Heritage: Renovating Historic Buildings Towards a Low-Carbon Built Heritage - Bolzano-Bozen, Italy
Duration: 14 Apr 202116 Apr 2021

Conference

ConferenceSBE21 Sustainable Built Heritage: Renovating Historic Buildings Towards a Low-Carbon Built Heritage
Country/TerritoryItaly
CityBolzano-Bozen
Period14/04/202116/04/2021

Bibliographical note

Publisher Copyright:
© Published under licence by IOP Publishing Ltd.

Keywords

  • Deep renovation
  • Historic building
  • Hydrophobization
  • Internal insulation

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