African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 722

Full Length Research Paper

Thermal properties of Calamus deërratus, Raphia hookeri and synthetic board in building design in Southwestern Nigeria

Alausa S. K.1, Oyesiku O. O.2*, Aderibigbe J. O.1 and Akinola O. S.1
1Department of Physics, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria. 2Department of Plant Science and Applied Zoology, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria.
Email: [email protected]

  •  Accepted: 16 March 2011
  •  Published: 30 April 2011


For a self-cooling building, alternative sources of roofing and ceiling materials in building design was investigated. The thermal property of Rattan palms (Calamus deërratus), Raffia palms (Raphia hookeri) and synthetic Nigerite asbestos sheets were determined using the Lees’ disc apparatus. Results showed that Rattan palms sheet had the lower thermal conductivity (k = 0.046 Wm-1 K-1) and a higher resistivity (r = 21.930 W-1mK) compared with Raffia palms sheet. While both palms showed lower thermal conductivity (k = 0.046 to 0.056 Wm-1K) and higher resistivity (r = 17.73 to 21.930 W-1mK) than asbestos sheet (k = 0.084 Wm-1K, r = 11.919 W-1mK). The results indicated that Rattan palms have a higher potential for heat resistivity than many other wood based heat-insulating materials and are recommended for ceiling in modern building design.


Key words: Self-cooling building, insulators, heat, Lees’ disk, Rattan, Raffia.