Attic Conversion – Hygrothermal Assessment of Historical Roof Truss

In the City of Prague centre, an investor had the intention to convert the unused attic space of a historical palace into office and exhibition floor. It was necessary to design such a solution that would not worsen the humidity conditions and would not jeopardize the original Renaissance roof truss...

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Main Authors: Sojkova Katerina, Stanek Kamil
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/32/e3sconf_nsb2020_15008.pdf
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author Sojkova Katerina
Stanek Kamil
author_facet Sojkova Katerina
Stanek Kamil
author_sort Sojkova Katerina
collection DOAJ
description In the City of Prague centre, an investor had the intention to convert the unused attic space of a historical palace into office and exhibition floor. It was necessary to design such a solution that would not worsen the humidity conditions and would not jeopardize the original Renaissance roof truss. The requirements of the heritage protection agency and the architect predetermined the use of very efficient thermal insulation above the rafters. The paper introduces and assesses several design solutions for: (1) new roofing layers and (2) the critical detail near the eaves, including variants with active heating elements. The assessment was based on results of 2D steady-state hygrothermal modelling using two criteria: (1) the interior surface temperature under winter design boundary conditions and (2) the relative humidity in the area of the timber elements under average January boundary conditions. The results showed hygrothermal implications of different design measures and helped to identify acceptable solutions for further project phases.
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spelling doaj.art-b8b11ddb4a354d56a1eedcd550b24ae22022-12-21T22:24:35ZengEDP SciencesE3S Web of Conferences2267-12422020-01-011721500810.1051/e3sconf/202017215008e3sconf_nsb2020_15008Attic Conversion – Hygrothermal Assessment of Historical Roof TrussSojkova Katerina0Stanek Kamil1CTU in Prague, University Centre for Energy Efficient BuildingsCTU in Prague, University Centre for Energy Efficient BuildingsIn the City of Prague centre, an investor had the intention to convert the unused attic space of a historical palace into office and exhibition floor. It was necessary to design such a solution that would not worsen the humidity conditions and would not jeopardize the original Renaissance roof truss. The requirements of the heritage protection agency and the architect predetermined the use of very efficient thermal insulation above the rafters. The paper introduces and assesses several design solutions for: (1) new roofing layers and (2) the critical detail near the eaves, including variants with active heating elements. The assessment was based on results of 2D steady-state hygrothermal modelling using two criteria: (1) the interior surface temperature under winter design boundary conditions and (2) the relative humidity in the area of the timber elements under average January boundary conditions. The results showed hygrothermal implications of different design measures and helped to identify acceptable solutions for further project phases.https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/32/e3sconf_nsb2020_15008.pdf
spellingShingle Sojkova Katerina
Stanek Kamil
Attic Conversion – Hygrothermal Assessment of Historical Roof Truss
E3S Web of Conferences
title Attic Conversion – Hygrothermal Assessment of Historical Roof Truss
title_full Attic Conversion – Hygrothermal Assessment of Historical Roof Truss
title_fullStr Attic Conversion – Hygrothermal Assessment of Historical Roof Truss
title_full_unstemmed Attic Conversion – Hygrothermal Assessment of Historical Roof Truss
title_short Attic Conversion – Hygrothermal Assessment of Historical Roof Truss
title_sort attic conversion hygrothermal assessment of historical roof truss
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/32/e3sconf_nsb2020_15008.pdf
work_keys_str_mv AT sojkovakaterina atticconversionhygrothermalassessmentofhistoricalrooftruss
AT stanekkamil atticconversionhygrothermalassessmentofhistoricalrooftruss