Advanced

Fuktberäkning av väggar med framtida klimatdata

Ekelund, Sebastian and Wennerkvist, William (2016)
LTH School of Engineering in Helsingborg
Abstract
The purpose of this report was to study how two common types of wood stud walls in Sweden will handle the future climate in Sweden, Gothenburg, out of a hydrothermal point of view. These two walls were analyzed with simulations in the hydrothermal calculation software WUFI with varying parameters. The first cases of the simulations were the so called base cases where moisture- and heat-sources was simulated to imitate normal conditions. The next step of the report was to evaluate how the walls handle varying conditions. The cases that was simulated were: • Seepage of moisture from the inside of the house.
• Reduced air circulation in the air gap.
• Increased absorption of wind-driven rain. • North façade.
• Varying thickness of the façade... (More)
The purpose of this report was to study how two common types of wood stud walls in Sweden will handle the future climate in Sweden, Gothenburg, out of a hydrothermal point of view. These two walls were analyzed with simulations in the hydrothermal calculation software WUFI with varying parameters. The first cases of the simulations were the so called base cases where moisture- and heat-sources was simulated to imitate normal conditions. The next step of the report was to evaluate how the walls handle varying conditions. The cases that was simulated were: • Seepage of moisture from the inside of the house.
• Reduced air circulation in the air gap.
• Increased absorption of wind-driven rain. • North façade.
• Varying thickness of the façade insulation. The approach to evaluate the risk of mould growth were co-using the Mould Resistance Design (MRD) with the folos-diagram and a diagram that describe the longest period when RH exceeds RHcrit. These three methods complete each other so it could be possible to make a conclusion. Both wall system will cope with the future climate if they are built in a proper professional manner. But it is of utmost importance to construct dense façades so that the wind-driven rain does not penetrate for larger amounts, and it is a well-functioning air gap that can wick away moisture. (Less)
Please use this url to cite or link to this publication:
author
Ekelund, Sebastian and Wennerkvist, William
organization
year
type
M2 - Bachelor Degree
subject
keywords
fuktanalys, mögel, mrd, wufi, träregelväggar, framtida klimatdata
language
Swedish
id
8889605
alternative location
https://portal.ch.lu.se/Campus.NET/Services/Publication/Export.aspx?id=3001&type=doc
date added to LUP
2016-08-28 04:08:24
date last changed
2016-08-28 04:08:24
@misc{8889605,
  abstract     = {The purpose of this report was to study how two common types of wood stud walls in Sweden will handle the future climate in Sweden, Gothenburg, out of a hydrothermal point of view. These two walls were analyzed with simulations in the hydrothermal calculation software WUFI with varying parameters. The first cases of the simulations were the so called base cases where moisture- and heat-sources was simulated to imitate normal conditions. The next step of the report was to evaluate how the walls handle varying conditions. The cases that was simulated were: •	Seepage of moisture from the inside of the house.
•	Reduced air circulation in the air gap.
•	Increased absorption of wind-driven rain. •	North façade.
•	Varying thickness of the façade insulation. The approach to evaluate the risk of mould growth were co-using the Mould Resistance Design (MRD) with the folos-diagram and a diagram that describe the longest period when RH exceeds RHcrit. These three methods complete each other so it could be possible to make a conclusion. Both wall system will cope with the future climate if they are built in a proper professional manner. But it is of utmost importance to construct dense façades so that the wind-driven rain does not penetrate for larger amounts, and it is a well-functioning air gap that can wick away moisture.},
  author       = {Ekelund, Sebastian and Wennerkvist, William},
  keyword      = {fuktanalys,mögel,mrd,wufi,träregelväggar,framtida klimatdata},
  language     = {swe},
  note         = {Student Paper},
  title        = {Fuktberäkning av väggar med framtida klimatdata},
  year         = {2016},
}