Impact of Thermal and Moisture Expansion on Design of Wooden Façade Elements for Retrofitting of Buildings

Barbora Nečasová; Pavel Liška; Michal Novotný

doi:10.4028/www.scientific.net/KEM.776.15

Paper Titles

Preface

Application of Thermal Analysis for the Quantification of Mineralization in Surface Wooden Layers
p.3

Verification of Mineral Particles Deposition in Wooden Construction Elements by Thermal Analysis
p.9

Impact of Thermal and Moisture Expansion on Design of Wooden Façade Elements for Retrofitting of Buildings
p.15

The Comparison of Moisture Balance of Diffusion-Open and Diffusion-Closed Structure of a Building Envelope
p.23

Validation of Orthotropic Parameters of Timber by Means of Elastic Layer Theory
p.29

Influence of Coarse Aggregate Grain Size on Frost Resistance of Concrete
p.37

Methods Appropriate for Determination of the Prescribed Reinforcement of the Elements of Reinforced Concrete Structures - Nowadays Used Methods
p.41

Monitoring of Selected Physical and Thermal Properties of Lightweight Concrete Based on Recycled Foam Plastics
p.46

HomeKey Engineering MaterialsKey Engineering Materials Vol. 776Impact of Thermal and Moisture Expansion on Design...

Impact of Thermal and Moisture Expansion on Design of Wooden Façade Elements for Retrofitting of Buildings

Abstract:

Building structures have been designed such that they are able to withstand the adverse effects of the environment for a certain time. The terms "for a certain time" and "the surrounding environment" are used for a purpose here, and that is because the phenomenon of ageing buildings is currently an increasingly discussed problem that is faced by every larger city. The materials used in the buildings, such as façade cladding, age just as the buildings themselves do. An immense pressure has been currently put on designers to use environmentally friendly materials not only for new buildings but also for the retrofitting of existing ones. The aim of this paper is to demonstrate that wood or wood composite materials are convenient solution for restoration of façades of administrative or commercial buildings, however, since the new cladding have to be connected with an old load-bearing structure, the designers have to overcome many limitations. One of the main difficulties is high thermal and moisture expansion of these materials which has a direct impact on the appearance of the façade. The obtained results showed that expansion properties should be studied closely when using wooden elements in the design and that a neglection can lead to a premature failure of the system.

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Periodical:

Key Engineering Materials (Volume 776)

Pages:

15-22

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.776.15

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Online since:

August 2018

Authors:

Barbora Nečasová*, Pavel Liška, Michal Novotný

Keywords:

Cladding, Expansion, Façade, Moisture, Stiffness, Thermal, Wood

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References

[1] P. Kuklík et a., Possibilities of more application of wooden multi-storey buildings as compared to multi-storey brick buildings, Forests of the Czech Republic, Hradec Králové (2017).