Hygric properties of hemp bio-insulations with differing compositions

E Latif, Simon Tucker, Mihaela Anca Ciupala, Devapriya Chitral Wijeyesekera, Darryl Newport

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The paper presents the results of a laboratory investigation on the hygric properties of five hemp insulation materials commercially available in the UK. The hemp fibre content varies between 30% and 95% in the total fibre content of the insulation materials examined. The adsorption–desorption isotherm, moisture buffer value, vapour diffusion resistance factor and water absorption coefficient were determined for the insulation materials investigated. The results showed that the hygric properties of the hemp insulation materials could vary widely depending on the constituents and fibrous structure. The considerable differences noted in the hygric properties of the insulation materials examined could potentially influence their hygrothermal performance as part of a building thermal envelope.
Original languageEnglish
Pages (from-to)702-711
JournalConstruction and Building Materials,
Early online date8 Jul 2014
Publication statusPublished - 15 Sept 2014


  • Hemp thermal insulation
  • Hygric properties
  • Thermal insulation materials


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