Evaluation of methods for measuring driving rain on buildings facades

Directed rain is one of the primary sources of humidity in building façades, triggering degradation mechanisms involving wetting and drying processes, hygrothermal variations and leakage of constituents. There are several methods of quantification of directed rain to calculate the intensity of water...

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Κύριοι συγγραφείς:	Zanoni, Vanda Alice Garcia, Sanchez, José Manoel Morales, Bauer, Elton
Μορφή:	Online
Γλώσσα:	por
Έκδοση:	Universidade Estadual de Campinas 2018
Διαθέσιμο Online:	https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650260
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id	oai:ojs.periodicos.sbu.unicamp.br:article-8650260
record_format	ojs
institution	Universidade Estadual de Campinas
collection	OJS
language	por
format	Online
author	Zanoni, Vanda Alice Garcia Sanchez, José Manoel Morales Bauer, Elton
spellingShingle	Zanoni, Vanda Alice Garcia Sanchez, José Manoel Morales Bauer, Elton Evaluation of methods for measuring driving rain on buildings facades
author_facet	Zanoni, Vanda Alice Garcia Sanchez, José Manoel Morales Bauer, Elton
author_sort	Zanoni, Vanda Alice Garcia
title	Evaluation of methods for measuring driving rain on buildings facades
title_short	Evaluation of methods for measuring driving rain on buildings facades
title_full	Evaluation of methods for measuring driving rain on buildings facades
title_fullStr	Evaluation of methods for measuring driving rain on buildings facades
title_full_unstemmed	Evaluation of methods for measuring driving rain on buildings facades
title_sort	evaluation of methods for measuring driving rain on buildings facades
description	Directed rain is one of the primary sources of humidity in building façades, triggering degradation mechanisms involving wetting and drying processes, hygrothermal variations and leakage of constituents. There are several methods of quantification of directed rain to calculate the intensity of water that is projected on the facade. These methods allow evaluating the exposure conditions that affect the durability and useful life of the buildings, as well as the intensity of the action of this phenomenon. The ISO 15927-3: 2009 and ASHRAE Standard 160: 2009 international standards are examples of reference documents that provide procedures and criteria for estimating the amount of directed rainfall projected on the vertical surface in each façade orientation. In the national scenario, Brazilian standards do not present criteria, models or calculation methods for the quantification of directed rainfall. This article presents methods and models, identified through a literature review, aiming to fill the gap in the Brazilian context. The focus of this article is the evaluation of the primary methods selected for the quantification of directed rain on the façade, based on descriptive and analytical studies that allowed the comparison between them. The results show that the semi-empirical methods evaluated result in different amounts of directed rain since the methods adopt different parameters for the coefficients that portray the conditions of exposure of the building and its insertion in the urban context.
publisher	Universidade Estadual de Campinas
publishDate	2018
url	https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650260
work_keys_str_mv	AT zanonivandaalicegarcia evaluationofmethodsformeasuringdrivingrainonbuildingsfacades AT sanchezjosemanoelmorales evaluationofmethodsformeasuringdrivingrainonbuildingsfacades AT bauerelton evaluationofmethodsformeasuringdrivingrainonbuildingsfacades AT zanonivandaalicegarcia metodosparaquantificacaodechuvadirigidaincidentenasfachadasdasedificacoes AT sanchezjosemanoelmorales metodosparaquantificacaodechuvadirigidaincidentenasfachadasdasedificacoes AT bauerelton metodosparaquantificacaodechuvadirigidaincidentenasfachadasdasedificacoes
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spelling	oai:ojs.periodicos.sbu.unicamp.br:article-86502602018-06-29T15:13:11Z Evaluation of methods for measuring driving rain on buildings facades Métodos para quantificação de chuva dirigida incidente nas fachadas das edificações Zanoni, Vanda Alice Garcia Sanchez, José Manoel Morales Bauer, Elton Condições de exposição. Chuva dirigida. Umidade. Degradação Exposure conditions. Driving rain. Moisture. Degradation. Directed rain is one of the primary sources of humidity in building façades, triggering degradation mechanisms involving wetting and drying processes, hygrothermal variations and leakage of constituents. There are several methods of quantification of directed rain to calculate the intensity of water that is projected on the facade. These methods allow evaluating the exposure conditions that affect the durability and useful life of the buildings, as well as the intensity of the action of this phenomenon. The ISO 15927-3: 2009 and ASHRAE Standard 160: 2009 international standards are examples of reference documents that provide procedures and criteria for estimating the amount of directed rainfall projected on the vertical surface in each façade orientation. In the national scenario, Brazilian standards do not present criteria, models or calculation methods for the quantification of directed rainfall. This article presents methods and models, identified through a literature review, aiming to fill the gap in the Brazilian context. The focus of this article is the evaluation of the primary methods selected for the quantification of directed rain on the façade, based on descriptive and analytical studies that allowed the comparison between them. The results show that the semi-empirical methods evaluated result in different amounts of directed rain since the methods adopt different parameters for the coefficients that portray the conditions of exposure of the building and its insertion in the urban context. A chuva dirigida é uma das principais fontes de umidade das fachadas das edificações, desencadeando mecanismos de degradação que envolvem processos de molhagem e secagem, variações higrotérmicas e perda de estanqueidade dos constituintes. Existem diversos métodos de quantificação de chuva dirigida para calcular a intensidade de água que é projetada na fachada. Esses métodos permitem avaliar as condições de exposição que afetam a durabilidade e vida útil das edificações, assim como a intensidade da ação deste fenômeno. As normas internacionais ISO 15927-3: 2009 e ASHRAE Standard 160: 2009 são exemplos de documentos de referência que fornecem procedimentos e critérios para estimar a quantidade de chuva dirigida que se projeta na superfície vertical, em cada orientação de fachada. No cenário nacional, as normas brasileiras não apresentam critérios, modelos ou métodos de cálculo para a quantificação de chuva dirigida. Considerando as lacunas existentes no contexto brasileiro, este artigo apresenta métodos e modelos identificados por meio de uma revisão de literatura. O foco deste artigo é a avaliação dos principais métodos selecionados para quantificação da chuva dirigida em fachada, embasada em estudos descritivos e analíticos que permitiram a comparação entre eles. Os resultados mostram que os métodos semiempíricos avaliados resultam em diferentes montantes de chuva dirigida, visto que os métodos adotam diferentes parâmetros para os coeficientes que retratam as condições de exposição do edifício e sua inserção no contexto urbano. Universidade Estadual de Campinas 2018-06-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Método semi-empírico Métodos semi-empíricos application/pdf https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650260 10.20396/parc.v9i2.8650260 PARC Pesquisa em Arquitetura e Construção; Vol. 9 No. 2 (2018); 122-132 PARC Pesquisa em Arquitetura e Construção; Vol. 9 Núm. 2 (2018); 122-132 PARC Pesquisa em Arquitetura e Construção; v. 9 n. 2 (2018); 122-132 1980-6809 por https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650260/18179 Copyright (c) 2018 PARC Pesquisa em Arquitetura e Construção

Evaluation of methods for measuring driving rain on buildings facades

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