Overview
Français
ABSTRACT
The purpose of this case study is to understand the pathology which occurred, in a period of less than 10 years, on the perimeter walls of a housing area with an R+1 energy grading from a scientific viewpoint. The hygrothermal study aims at providing the diagnostic of causes for the disorders, and the definition of curative solutions in order to eradicate the causes producing the observed effects. A visual analysis conducted both inside and outside of the structure allows for carrying out assessments in order to identify the dominant pathology. The analysis of Glaser diagrams, based on the variation of the exterior temperature, allows for the determination of causes and the validation of potential solutions.
Read this article from a comprehensive knowledge base, updated and supplemented with articles reviewed by scientific committees.
Read the articleAUTHOR
-
Paul DAHAN: ETP engineer, European engineer, former professor at ESTP
INTRODUCTION
The aim of this case study is to use a scientific approach to understand the pathology that has occurred, in less than 10 years, on the perimeter walls of an R + 1 (first floor + 1 storey) residential complex.
Note: the physical characteristics of building materials, Regnault tables and conventional surface exchange coefficients can be consulted in the file [Form ].
The Ultimate Scientific and Technical Reference
KEYWORDS
building | humidity
This article is included in
Pathologies and building rehabilitation
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Moisture pathology. Coated walls in buildings
Study support
Standards and norms
- Building work – Restoration of facades in service using polymer-based waterproof coatings – Part 1-1: Technical specifications – Part 1-2: General material selection criteria – Part 2: Special clauses – Commercial reference for parts P 1-1, P 1-2 and P 2 of NF DTU 42.1, November 2007 (classification index: P 84-404). - NF DTU 42.1 - 2007
- Paints and varnishes – Paint products and coating systems for exterior masonry...
Statistical and hygrothermal data
-
Readings from Météo France
Météo France has departmental centers throughout France, which are able to provide climatological information on the location of the building, which must be the subject of a hygrothermal study.
On written request, each center provides climatic data (temperature and relative humidity) at the desired intervals....
The Ultimate Scientific and Technical Reference
