Degradation Control of Walls with Rising Damp Problems: Numerical and Mathematical Analysis of the Evaporative Process

• Type: Chapter or Part of a Book
• Date: 2012

Authors

Ana Sofia Guimarães (Author) FEUP; J.M.P.Q. Delgado (Author) FEUP; V.P. Freitas (Author) FEUP

Book

Title: Hygrothermal Behaviour, Building Pathology and Durability

Pages: 113-140

ISBN: 978-3-642-31157-4

Electronic ISBN: 978-3-642-31158-1

Publisher: Springer

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

Other information

Abstract (EN): Degradation in walls of Historical Building with rising damp is a complex problem to solve, due to the thickness and heterogeneity of those walls. The traditionally treatment techniques used (such as watertight barriers, injection of hydrofuge products, etc.) show, sometimes, to be ineffective or too expensive, justifying the need to find a new approach. Experimental studies validate the effectiveness of a new treatment technique applied to the walls of old buildings wall base ventilation system. Building Physics Laboratory (LFC) is developing a model of this technique. The sizing of the treatment system is based on knowledge of the characteristics of the wall, of the geometry of the ventilation system and of the building being dealt with. In this work it is described the moisture transfer process between the moving air flux, inside the system, and the wall. Experimental results were used to validate the mathematical solution and the values obtained are very similar.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 27