Hygrothermal properties of advanced bio-based insulation materials

Filip Fedorik, Jiri Zach, Marja Lehto, Hanna-Riitta Kymäläinen, Risto Kuisma, Marja Jallinoja, Kimmo Illikainen, Sanna Alitalo

Research output: Contribution to journalArticlepeer-review

Abstract

Hygrothermal performance of buildings is one key element to the sustainable design, health, and comfort of the indoor environment. Building sustainability depends on all associated lifespan stages, from build-ing design and material production to demounting and waste management. Many building materials are unsustainable in terms of their environmental impacts. One approach to reduce environmental impacts associated with buildings is the development and application of bio-based building materials. The aim of this study was to determine the hygrothermal properties of bio-based thermal insulators that promote energy efficiency and contribute in decreasing environmental impacts of buildings. Here, the hygrother-mal properties of eight new peat-, recycled paper-, wood shaving-, and feather-based insulation materials were assessed. Measurements of these material properties will improve understanding of the energy effi-ciency, permeability, and sustainability of new buildings, building retrofits, or both. Data on these new materials will provide the necessary parameters to develop a hygrothermal dynamic numerical model. The studied bio-based materials appear to provide sufficient hygrothermal performance, which is com-parable with conventional insulation materials with minimum embodied energy. (c) 2021 Elsevier B.V. All rights reserved.

Original languageEnglish
Article number111528
JournalEnergy and Buildings
Volume253
Number of pages11
ISSN0378-7788
DOIs
Publication statusPublished - 15 Dec 2021
MoE publication typeA1 Journal article-refereed

Fields of Science

  • 216 Materials engineering
  • Bio-based material
  • Renewable raw sources
  • Thermal insulation
  • Hygrothermal properties
  • Organic and recycled material
  • THERMAL INSULATION
  • BUILDING-MATERIALS
  • MOISTURE-CONTENT
  • FIBERS
  • IMPACT
  • ENERGY
  • WASTE
  • CONDUCTIVITY
  • RECOVERY

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