Probabilistic risk assessment methodology of exterior surfaces defacement caused by algae growth

• Type: Article in International Scientific Journal
• Date: 2014

Authors

N. M. M. Ramos (Author) FEUP; E. Barreira (Author) FEUP; M. L. Simões (Author) FEUP; J. M. P. Q. Delgado (Author) FEUP

Journal

Title: Journal of Construction Engineering and Management - ASCE

Vol. 140 No. 12

Pages: 1-7

ISSN: 0733-9364

Publisher: ASCE

Indexing

ISI Web of Knowledge - 2 Citations

ISI Web of Science

Scopus - 5 Citations

INSPEC

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences

Other information

Authenticus ID: P-009-Z8E

DOI: 10.1061/(asce)co.1943-7862.0000909

Abstract (EN): This paper presents the development of a risk assessment methodology applicable to the analysis of exterior surfaces defacement from algae growth. The specific case of external thermal insulation composite systems (ETICS) is frequently associated with a higher perceived risk if compared with other facade solutions. The design of the proposed methodology includes: the scope of the risk analysis definition, the determination of the parameters involved using a qualitative analysis of the problem, the collection of relevant data, and a quantitative probabilistic risk analysis based in Monte Carlo simulations. The detailed implementation of the methodology involved the preparation of a meta-model, response surface methodology, that was developed and compared with a hygrothermal simulation tool. The meta-model allowed a faster application of the Monte Carlo method, providing results of the methodology application to the use of ETICS in selected locations and a sensitivity analysis of the stochastic parameters.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7