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A parametric study of the energy and moisture performance in Passive House exterior walls

Berggren, Björn LU ; Wall, Maria LU and Håkan, Stenström (2011) 4th Nordic Passive House Conference, 2011
Abstract
Adding insulation to improve the energy performance of a building with a traditional Swedish wooden construction may increase the risk of mould growth in the wooden construction.

There is a need to address this potential problem since the amount of passive houses and low energy buildings are increasing as a means to reduce energy use, energy dependency and greenhouse gas emissions.

This paper evaluates energy performance and moisture performance simultaneously in order to create a more holistic approach. Space heating demand, peak load for space heating and risk for mould growth are evaluated.

The analysis of these three different aspects shows that there is no contradiction between moisture safety design and... (More)
Adding insulation to improve the energy performance of a building with a traditional Swedish wooden construction may increase the risk of mould growth in the wooden construction.

There is a need to address this potential problem since the amount of passive houses and low energy buildings are increasing as a means to reduce energy use, energy dependency and greenhouse gas emissions.

This paper evaluates energy performance and moisture performance simultaneously in order to create a more holistic approach. Space heating demand, peak load for space heating and risk for mould growth are evaluated.

The analysis of these three different aspects shows that there is no contradiction between moisture safety design and energy efficient design. It may however not be suitable to increase the amounts of insulation in traditional wooden constructions without considering risk of mould growth. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to conference
publication status
published
subject
keywords
Passive house, Energy, Moisture, Performance, Mould, Hygrothermal, WUFI, IDA ICE
conference name
4th Nordic Passive House Conference, 2011
language
English
LU publication?
yes
id
e5199f05-8552-496b-86ec-03a58a0c3657 (old id 3515950)
date added to LUP
2014-03-06 13:41:10
date last changed
2016-04-16 12:33:44
@misc{e5199f05-8552-496b-86ec-03a58a0c3657,
  abstract     = {Adding insulation to improve the energy performance of a building with a traditional Swedish wooden construction may increase the risk of mould growth in the wooden construction. <br/><br>
There is a need to address this potential problem since the amount of passive houses and low energy buildings are increasing as a means to reduce energy use, energy dependency and greenhouse gas emissions.<br/><br>
This paper evaluates energy performance and moisture performance simultaneously in order to create a more holistic approach. Space heating demand, peak load for space heating and risk for mould growth are evaluated.<br/><br>
The analysis of these three different aspects shows that there is no contradiction between moisture safety design and energy efficient design. It may however not be suitable to increase the amounts of insulation in traditional wooden constructions without considering risk of mould growth.},
  author       = {Berggren, Björn and Wall, Maria and Håkan, Stenström},
  keyword      = {Passive house,Energy,Moisture,Performance,Mould,Hygrothermal,WUFI,IDA ICE},
  language     = {eng},
  title        = {A parametric study of the energy and moisture performance in Passive House exterior walls},
  year         = {2011},
}