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Moisture Levels in Historic Timber Walls Insulated with Hemp-Lime

Strandberg, Paulien LU and Balksten, Kristin (2021) International conference on Earthen and wood vernacular heritage and climate change p.122-127
Abstract
The European Union has a low-carbon roadmap that aims at reducing greenhouse gas emissions to
prevent further climate change and achieve climate-neutrality by 2050. Many of the historical buildings that we
have today will still be around in 2050. Hence, there is a need to improve their energy performance. A way to do
this is to use hemp-lime as a material for renovation. Hemp shiv, the woody core parts of the hemp stem, can be
used in combination with building limes to create a sustainable building material. Visby (a UNESCO World Heritage
Site) is the capital of the Swedish island Gotland. It is dominated by historical timber houses with post-and-plank
walls. To improve air tightness and to reduce fire risks these... (More)
The European Union has a low-carbon roadmap that aims at reducing greenhouse gas emissions to
prevent further climate change and achieve climate-neutrality by 2050. Many of the historical buildings that we
have today will still be around in 2050. Hence, there is a need to improve their energy performance. A way to do
this is to use hemp-lime as a material for renovation. Hemp shiv, the woody core parts of the hemp stem, can be
used in combination with building limes to create a sustainable building material. Visby (a UNESCO World Heritage
Site) is the capital of the Swedish island Gotland. It is dominated by historical timber houses with post-and-plank
walls. To improve air tightness and to reduce fire risks these timber houses were historically rendered with a thick
lime render.
The aim of this paper was to study moisture levels in two walls; one with a lime render and another with a hemplime render to determine the feasibility of using hemp-lime as an insulation material for retrofitting historic postand-plank walls. Two full-scale façades were constructed at Lund University, with a post-and-plank wall with a
thick lime render and a similar wall with a hemp-lime render. The façades had two different surface finishes: an
air lime and a natural hydraulic lime, allowing for a comparison between the two. Moisture levels inside the
façades were monitored for more than one year. (Less)
Please use this url to cite or link to this publication:
author
and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Proceedings of the International Conference on Earthen and Wood Vernacular Heritage and Climate Change
editor
Dabaieh, Marwa
pages
122 - 127
publisher
Lund University
conference name
International conference on Earthen and wood vernacular heritage and climate change
conference location
Lund, Sweden
conference dates
2021-08-29 - 2021-08-30
ISBN
978-91-7267-446-2
language
English
LU publication?
yes
id
494f5569-5827-486e-b8ba-923fbf30876e
date added to LUP
2022-10-11 11:54:24
date last changed
2023-04-25 10:00:42
@inproceedings{494f5569-5827-486e-b8ba-923fbf30876e,
  abstract     = {{The European Union has a low-carbon roadmap that aims at reducing greenhouse gas emissions to<br/>prevent further climate change and achieve climate-neutrality by 2050. Many of the historical buildings that we<br/>have today will still be around in 2050. Hence, there is a need to improve their energy performance. A way to do<br/>this is to use hemp-lime as a material for renovation. Hemp shiv, the woody core parts of the hemp stem, can be<br/>used in combination with building limes to create a sustainable building material. Visby (a UNESCO World Heritage<br/>Site) is the capital of the Swedish island Gotland. It is dominated by historical timber houses with post-and-plank<br/>walls. To improve air tightness and to reduce fire risks these timber houses were historically rendered with a thick<br/>lime render.<br/>The aim of this paper was to study moisture levels in two walls; one with a lime render and another with a hemplime render to determine the feasibility of using hemp-lime as an insulation material for retrofitting historic postand-plank walls. Two full-scale façades were constructed at Lund University, with a post-and-plank wall with a<br/>thick lime render and a similar wall with a hemp-lime render. The façades had two different surface finishes: an<br/>air lime and a natural hydraulic lime, allowing for a comparison between the two. Moisture levels inside the<br/>façades were monitored for more than one year.}},
  author       = {{Strandberg, Paulien and Balksten, Kristin}},
  booktitle    = {{Proceedings of the International Conference on Earthen and Wood Vernacular Heritage and Climate Change}},
  editor       = {{Dabaieh, Marwa}},
  isbn         = {{978-91-7267-446-2}},
  language     = {{eng}},
  pages        = {{122--127}},
  publisher    = {{Lund University}},
  title        = {{Moisture Levels in Historic Timber Walls Insulated with Hemp-Lime}},
  url          = {{https://lup.lub.lu.se/search/files/145165621/EJ_SPRIDNING_Moisture_levels_in_historic_timber_walls_insulated_with_hemp_lime.pdf}},
  year         = {{2021}},
}