Effect of exterior Hydrophobization on the Heat Loss through solid Masonry Walls with and without Internal Insulation

Ernst Jan de Place Hansen*, Nickolaj Feldt Jensen, Ruut Hannele Peuhkuri, Panagiota Pagoni, Eva Møller

*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

Hydrophobization reduces the water absorption by facade materials and is often suggested as an optional measure to reduce the risk of moisture problems in internally insulated facades. Studies regarding hydrophobization have mainly focused on moisture performance and whether the treatment is safe to apply to historic building facades. Little focus has been on how the treatment affects heat loss due to the walls becoming drier. This study investigated the effect of hydrophobization on heat loss for solid masonry walls. The study comprises: field measurements from a large-scale experimental set-up containing solid masonry test walls with and without internal insulation and hydrophobization, and a simulation study. Both studies showed a generally positive effect of the hydrophobic treatment on heat loss, although simulations show a low dependency on the type of insulation system compared with field measurements.

Original languageEnglish
Title of host publicationMultiphysics and Multiscale Building Physics : Proceedings of the 9th International Building Physics Conference (IBPC 2024) Volume 3: Building Systems and HVAC Technologies
EditorsUmberto Berardi
Number of pages6
PublisherSpringer
Publication dateDec 2024
Pages445-450
ISBN (Print)978-981-97-8312-0, 978-981-97-8315-1
ISBN (Electronic)978-981-97-8313-7
DOIs
Publication statusPublished - Dec 2024
EventThe 9th conference of the International Association of Building Physics - Toronto Metropolitan University, Toronto, Canada
Duration: 25 Jul 202427 Jul 2024
https://www.ibpc2024.org/

Conference

ConferenceThe 9th conference of the International Association of Building Physics
LocationToronto Metropolitan University
Country/TerritoryCanada
CityToronto
Period25/07/202427/07/2024
Internet address
SeriesLecture Notes in Civil Engineering
VolumeLNCE 554
ISSN2366-2557

Keywords

  • field measurements
  • heat loss
  • Hydrophobization
  • simulation
  • solid masonry

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