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Moisture Safety of Tall Timber Facades—LCA and LCC Calculations of Damage Scenarios

  • Joakim NorénEmail author
  • Anna Pousette
  • Karin Sandberg
Conference paper
Part of the Springer Proceedings in Energy book series (SPE)

Abstract

The use of timber structures in tall buildings increases the demand of moisture safety in facades. Moisture in the facade could result in unwanted consequences such as mold, decay and distortions in wood materials. This might have impact on the indoor climate and the building quality. The aim of this study was to evaluate the moisture safety regarding the composition of the façade and connection details such as windows and balconies. Scenarios with possible damages were evaluated with LCC (Life Cycle Cost) and LCA (Life Cycle Assessment). The scenarios were developed based on experiences from manufacturers and insurance companies and on research investigations of damages. LCC and LCA includes replacement of damaged building materials, transports of new materials and damaged materials for recycling or energy recovery and the use of energy for drying of moisture in the structure. Both light frame structures and CLT (Cross Laminated Timber) structures were included. Improvements of detail connections to increase moisture safety were also evaluated regarding risk of damage, costs and environmental impact. The results show that even small and inexpensive improvements will increase the moisture safety and significantly reduce the risk of damage.

Keywords

Timber facades Moisture safety LCA LCC 

Notes

Acknowledgement

This study was supported by WoodWisdomNet+ research program; project Tall Timber Facades (TallFacades). We would like to thank Martinsons Byggsystem, Moelven Byggmodul and Vinnova for supporting the work.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.RISE Research Institutes of SwedenStockholmSweden
  2. 2.RISE Research Institutes of SwedenSkellefteåSweden

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