Conservation Level Assessment Application to a heritage building

Fernanda Rodrigues,Jorge Fonseca,Raquel Matot,Aníbal Costa,Ana Alves,Alíce Tavares,K Prušková,P Juhás,I Juhásová Šenitková,H Fariborz,F Kulhánek,J Váchal,M Flimel,J Mareček,M Vochozka,J Oláh,J Melcher,S Šilarová

doi:10.1051/matecconf/201927901002

Abstract

An evaluation methodology to estimate the envelope’s degradation level (DL) was developed being after object of adjustment and improvement. The methodology is based on visual survey and in the application of the Failure Mode and Effects Analysis (FMEA) method allied to evaluation scales, aiming to achieve building condition assessment and prioritizing refurbishment interventions. In Portugal, the high buildings number needing refurbishment justified the evolution and improvement of the original methodology of state of conservation assessment of residential buildings at controlled costs. This methodology firstly developed and applied for residential buildings was based on an evaluation scale of eight levels, which was after adjusted to five levels. This simplification aims an easier application of this methodology and provides users with a clear understanding of his features. A summarised evolution of this methodology will be depicted in this paper and will be applied to a heritage building located in the city of Oporto, in Portugal. Beyond the evolution of this buildings conservation assessment methodology, this paper aims to show its usefulness for heritage buildings condition assessment, through the application to a case study.

Highlights

Buildings degradation is an inevitable and progressive process being the deterioration a natural path that occurs during the time due to the interaction of several factors [1]
There are other European methods for building condition assessment as: the English method of Housing Health and Safety Rating System (HHSRS) [6], the French method to assess the condition of buildings that may be declared inhabitable [7], the Dutch standard NEN 2767-1, NEN2767-2 and NEN 2767-3 [8, 9, 10], the EPIQR (Energy Performance Indoor Environmental Quality Retrofit) [11], and TOBUS (Tool for Selecting Office Building Upgrading Solutions), which were developed within European research [12, 13]
In order to establish the refurbishment operations and its priority according to the degradation level of the anomalies, the characterization of the conservation state of each constructive element of the building was done [1]

Summary

Introduction

Buildings degradation is an inevitable and progressive process being the deterioration a natural path that occurs during the time due to the interaction of several factors [1]. Some are developed to give the conservation level, evaluating the level of building repair needs based on a visual survey, such as [3] and the Portuguese method for buildings condition assessment developed by LNEC under the 2006 revision of the urban rental system [4, 5]. There are other European methods for building condition assessment as: the English method of Housing Health and Safety Rating System (HHSRS) [6], the French method to assess the condition of buildings that may be declared inhabitable [7], the Dutch standard NEN 2767-1, NEN2767-2 and NEN 2767-3 [8, 9, 10], the EPIQR (Energy Performance Indoor Environmental Quality Retrofit) [11], and TOBUS (Tool for Selecting Office Building Upgrading Solutions), which were developed within European research [12, 13]

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Results

Conclusion