The potential of hemp buildings in different climates: A comparison between a common passive house and the hempcrete building system
Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
The aim of this bachelor thesis was to study the potential of hemp buildings in different climates. The report examines and models two different energy efficient building concepts – the more common passive house and the environmental friendly hempcrete building system. These two buildings thermal performances were then simulated and compared in different climates followed by a brief discussion about their economic and environmental impact.
The simulation was performed with the energy calculating program VIP-energy v 2.1.1 with the two models located in Kiruna, Sundsvall, Malmo, Berlin and Rome to represent the different climates. Simulations for different wall sizes and a sensitivity analysis of some significant parameters were also made.
The hempcrete building system showed to have a thermal performance similar to that of passive houses in more southern climates. In the north of Sweden however the hempcrete building required up to 20 % more energy than the passive house to maintain comfortable indoor temperatures. This deficit could be compensated for with hemp fibre insulation to augment the building envelope and U-value. Furthermore the hygrothermal material properties that were not included in the simulation can be expected to have a significant positive impact on hemp buildings relative thermal performance.
With a passive house thermal performance, a healthy indoor environment and an economically viable and environmental friendly production process hemp building demonstrated great potential in all the fields studied.
Place, publisher, year, edition, pages
2014. , 59 p.
TVE, 14 016
Passive house, Hempcrete, VIP energy
IdentifiersURN: urn:nbn:se:uu:diva-225793OAI: oai:DiVA.org:uu-225793DiVA: diva2:722306
International Hemp Building Association
Systems in Technology and Society Programme
Widén, Joakim, ForskarassistenAllin, Steve
Wäckelgård, Ewa, Professor