Investigation of material characteristics and hygrothermal performances of different bio-based insulation composites

Alex Koh Chuen Hon; Florent Gauvin; Katrin Schollbach; H.J.H. Brouwers

doi:10.1016/j.conbuildmat.2022.128440

Investigation of material characteristics and hygrothermal performances of different bio-based insulation composites

Alex Koh Chuen Hon (Corresponding author)
, Florent Gauvin
, Katrin Schollbach
, H.J.H. Brouwers

Building Materials

Research output: Contribution to journal › Article › Academic › peer-review

53 Citations (Scopus)

1165 Downloads (Pure)

Abstract

The thermal and hygric characteristics of four bio-based insulation composites (mycelium, hemp, grass and cork) are investigated, and their hygrothermal performances including mould growth potential are simulated and analysed under typical construction details and various climates profiles. The cork composite is found to have the best hygrothermal performance and is suitable under all investigated climates without mould growth, due to its hydrophobic nature and low thermal conductivity. The mycelium composite is highly susceptible to mould growth risk; whereas medium risk is observed on both hemp and grass composites. The findings underline the suitability of using different bio-based composites according to the assembly design and the local climate conditions.

Original language	English
Article number	128440
Number of pages	13
Journal	Construction and Building Materials
Volume	346
DOIs	https://doi.org/10.1016/j.conbuildmat.2022.128440
Publication status	Published - 5 Sept 2022

Keywords

Bio-based insulation
Thermal conductivity
Moisture
Hygrothermal performance
Mould growth

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10.1016/j.conbuildmat.2022.128440

pdfFinal published version, 13.6 MBLicence: CC BY

RAAK.MKB12.018 Bio-Iso
Gauvin, F. (Project Manager), Brouwers, H. J. H. (Project member) & Berger, F. (Project member)
1/10/20 → 30/09/22
Project: Research direct

Cite this

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title = "Investigation of material characteristics and hygrothermal performances of different bio-based insulation composites",

abstract = "The thermal and hygric characteristics of four bio-based insulation composites (mycelium, hemp, grass and cork) are investigated, and their hygrothermal performances including mould growth potential are simulated and analysed under typical construction details and various climates profiles. The cork composite is found to have the best hygrothermal performance and is suitable under all investigated climates without mould growth, due to its hydrophobic nature and low thermal conductivity. The mycelium composite is highly susceptible to mould growth risk; whereas medium risk is observed on both hemp and grass composites. The findings underline the suitability of using different bio-based composites according to the assembly design and the local climate conditions.",

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AU - Koh Chuen Hon, Alex

AU - Gauvin, Florent

AU - Schollbach, Katrin

AU - Brouwers, H.J.H.

PY - 2022/9/5

Y1 - 2022/9/5

N2 - The thermal and hygric characteristics of four bio-based insulation composites (mycelium, hemp, grass and cork) are investigated, and their hygrothermal performances including mould growth potential are simulated and analysed under typical construction details and various climates profiles. The cork composite is found to have the best hygrothermal performance and is suitable under all investigated climates without mould growth, due to its hydrophobic nature and low thermal conductivity. The mycelium composite is highly susceptible to mould growth risk; whereas medium risk is observed on both hemp and grass composites. The findings underline the suitability of using different bio-based composites according to the assembly design and the local climate conditions.

AB - The thermal and hygric characteristics of four bio-based insulation composites (mycelium, hemp, grass and cork) are investigated, and their hygrothermal performances including mould growth potential are simulated and analysed under typical construction details and various climates profiles. The cork composite is found to have the best hygrothermal performance and is suitable under all investigated climates without mould growth, due to its hydrophobic nature and low thermal conductivity. The mycelium composite is highly susceptible to mould growth risk; whereas medium risk is observed on both hemp and grass composites. The findings underline the suitability of using different bio-based composites according to the assembly design and the local climate conditions.

KW - Bio-based insulation

KW - Thermal conductivity

KW - Moisture

KW - Hygrothermal performance

KW - Mould growth

U2 - 10.1016/j.conbuildmat.2022.128440

DO - 10.1016/j.conbuildmat.2022.128440

M3 - Article

SN - 0950-0618

VL - 346

JO - Construction and Building Materials

JF - Construction and Building Materials

M1 - 128440

ER -

Investigation of material characteristics and hygrothermal performances of different bio-based insulation composites

Abstract

Keywords

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RAAK.MKB12.018 Bio-Iso

Cite this