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 H. Peuhkuri, Panagiota Pagoni, Eva B. Møller

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-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 in-ternally insulated facades. Studies regarding hydrophobization have mainly fo-cused on moisture performance and whether the treatment is safe to apply to his-toric 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 hydrophobi-zation on heat loss for solid masonry walls. The study comprises: field measure-ments 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 treat-ment 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)
EditorsU. Berardi
PublisherSpringer
Pages445–450
ISBN (Print)978-981-97-8312-0
ISBN (Electronic)978-981-97-8313-7
DOIs
Publication statusAccepted/In press - 2025
Event9th International Buildings Physics Conference - Toronto Metropolitan University, Toronto, Canada
Duration: 25 Jul 202427 Jul 2024

Conference

Conference9th International Buildings Physics Conference
LocationToronto Metropolitan University
Country/TerritoryCanada
CityToronto
Period25/07/202427/07/2024
SeriesLecture Notes in Civil Engineering
Volume554
ISSN2366-2557

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