Determining moisture levels in straw bale construction

Written by esba

The use of straw bales for the construction of buildings in the UK has to date generally been limited to the self-build fringe sector. In order to bring this form of construction into the mainstream sector, to benefit from its inherent low carbon and high insulation characteristics, it is necessary to guarantee the long-term durability of the straw. Maintaining low moisture levels is critical to the long-term resistance of straw to biological decomposition.

This paper presents results from a study on moisture monitoring in straw bale construction and includes the development of an empirical equation that relates straw moisture content to surrounding microclimate relative humidity and temperature. This knowledge allows continuous non-invasive condition monitoring of the straw in ongoing research work and potentially as part of future managed maintenance of straw bale buildings.

Authors:

  1. Lawrence, Mike
  2. Heath, Andrew
  3. Walker, Pete

Link: http://www.sciencedirect.com/science/article/pii/S0950061809000919

About the author

esba

The European Straw Building Association is an independent European association, devoid of any profit making motive. The object of the Association is to promote and develop the use of straw, as a sustainable way of building in all the senses of the term “sustainable”: renewable, ecological, healthy, energy and climate efficient, social and economic.
The Association is a federation composed of organisations and people particularly concerned with the use of straw in buildings.