A Numerical Study of Methods to Improve Moisture Safety of Ventilated Wooden Roofs

Thumbnail Image
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2024-02-19
Major/Subject
Mcode
Degree programme
Language
en
Pages
12
Series
Journal of Sustainable Architecture and Civil Engineering, Volume 34, issue 1, pp. 101-112
Abstract
The hygrothermal performance of highly insulated, prefabricated wooden roof structures is likely to deteriorate due to the low heat flux to the ventilation cavity. This article evaluates the possibility to improve the moisture safety of such roofs in a Nordic climate by using different control methods for the ventilation rate of the roof and by using thermal insulation above the roof sheathing. The results support the use of adaptive roof ventilation as it decreases the probability of mould growth in the roof. The use of thermal insulation above roof sheathing decreases the probability of mould growth only slightly in a roof with elevated amount of built-in moisture.
Description
Publisher Copyright: © 2024, Kauno Technologijos Universitetas. All rights reserved.
Keywords
controlled ventilation, hygrothermal performance, Nordic climate, wooden roof
Other note
Citation
Viljanen, K & Felius, L 2024, ' A Numerical Study of Methods to Improve Moisture Safety of Ventilated Wooden Roofs ', Journal of Sustainable Architecture and Civil Engineering, vol. 34, no. 1, pp. 101-112 . https://doi.org/10.5755/j01.sace.34.1.35512