Research on the environmental performance of a natural material wooden house

Hiroto Takaguchi*, Yusuke Nakajima, Kei Kawamura, Shumpei Uchida, Yutaka Tonooka, Akinori Sagane

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


In this study, we examined the advantages of houses that use a lot of wood and natural materials and that also have breathable walls. There is insufficient research literature concerning the characteristics of effects obtained by using substantial quantities of wood for interiors. Typical Japanese modern houses have a damp-proof membrane but this risks being damaged during the tenure of residents or by earthquakes. Breathable walls do not have such a damp-proof membrane. We measured the environmental performance (indoor thermal environment, thermal environment and humidity in walls, and energy consumption) of four houses that use large amounts of wood, with each house using approximately 1.5 times the amount used by a typical wooden house. Results for one of these houses using large amounts of wood, even the room that was not air conditioned was most stable in terms of relative humidity, and 73.1% of measurements were classified as being within the central range of humidity. And the humility inside the wall was low enough to avoid the mold growth. From the viewpoint of energy, generally theses houses consumption of energy were smaller than the national average, but one was bigger because of the size of family and neighborhood circumstances.

Original languageEnglish
Pages (from-to)1677-1680
Number of pages4
JournalEnergy Procedia
Publication statusPublished - 2014 Jan 1
Event6th International Conference on Applied Energy, ICAE 2014 - Taipei, Taiwan, Province of China
Duration: 2014 May 302014 Jun 2


  • Indoor-T emperature and humidity
  • Measurement
  • Natural materials
  • Wooden-house

ASJC Scopus subject areas

  • Energy(all)


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