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Lufttätning av utfackningsväggar på JM

Namali, Shanga and Stenberg, Hanna (2015)
Programmes in Helesingborg
Abstract
Today it is a matter of course to build airtight buildings both in terms of obtaining a good indoor climate as well as meeting the energy requirements. In the near future the energy requirements will be even tougher which demands for even better solutions than there are today. JM is one of the leading companies in its line of building energy efficient buildings but despite this they have been experiencing some difficulties to airtight their curtain walls. This report studies how JM works with air sealing their curtain walls and what improvement measures to be taken to make them more airtight in the future. Their current method is specified in the company’s assembly instructions and this have been be studied and tested in this report... (More)
Today it is a matter of course to build airtight buildings both in terms of obtaining a good indoor climate as well as meeting the energy requirements. In the near future the energy requirements will be even tougher which demands for even better solutions than there are today. JM is one of the leading companies in its line of building energy efficient buildings but despite this they have been experiencing some difficulties to airtight their curtain walls. This report studies how JM works with air sealing their curtain walls and what improvement measures to be taken to make them more airtight in the future. Their current method is specified in the company’s assembly instructions and this have been be studied and tested in this report together with a new method. The new method suggests that the plastic at the window recesses should be sealed with tape in oppose to the existing instructions that suggests the plastic to be only tacked to the wall. The report is based on a small interview study with interviews from a few employees at JM, some companies regarding exhaust ventilation, a literature study for the collection of facts for the technical background and through visits to one of JM's construction projects in Lund. Proof pressures and comparative studies between the two curtain walls have been studied at the workplace in Lund. However data from another, completed project, also built by JM, have been studied for the sake of comparing the results. The results from the proof pressure show that the difference between the new and the existing method were not as great as expected. There were inadequacies at more places than at the window-recesses which indicate an insufficiency in the sealing of the vapor barrier. Because of this some improvement measures have been suggested for JM to obtain better airtight curtain walls. These are:
• An installation barrier in the curtain walls.
• FTX-system instead of exhaust ventilation. • Evaluation study of individual projects • Having the radiator pipes in the beam layout rather than the walls
• Taping all the joins where the plastic film ends (Less)
Please use this url to cite or link to this publication:
author
Namali, Shanga and Stenberg, Hanna
organization
year
type
M2 - Bachelor Degree
subject
keywords
lufttäthet, frånluftsventilation, provtryckning, utfackningsväggar
language
Swedish
id
7852338
alternative location
http://portal.ch.lu.se/Campus.NET/Services/Publication/Export.aspx?id=2890&type=doc
date added to LUP
2015-09-02 04:13:50
date last changed
2015-09-02 04:13:50
@misc{7852338,
  abstract     = {Today it is a matter of course to build airtight buildings both in terms of obtaining a good indoor climate as well as meeting the energy requirements. In the near future the energy requirements will be even tougher which demands for even better solutions than there are today. JM is one of the leading companies in its line of building energy efficient buildings but despite this they have been experiencing some difficulties to airtight their curtain walls. This report studies how JM works with air sealing their curtain walls and what improvement measures to be taken to make them more airtight in the future. Their current method is specified in the company’s assembly instructions and this have been be studied and tested in this report together with a new method. The new method suggests that the plastic at the window recesses should be sealed with tape in oppose to the existing instructions that suggests the plastic to be only tacked to the wall. The report is based on a small interview study with interviews from a few employees at JM, some companies regarding exhaust ventilation, a literature study for the collection of facts for the technical background and through visits to one of JM's construction projects in Lund. Proof pressures and comparative studies between the two curtain walls have been studied at the workplace in Lund. However data from another, completed project, also built by JM, have been studied for the sake of comparing the results. The results from the proof pressure show that the difference between the new and the existing method were not as great as expected. There were inadequacies at more places than at the window-recesses which indicate an insufficiency in the sealing of the vapor barrier. Because of this some improvement measures have been suggested for JM to obtain better airtight curtain walls. These are:
•	An installation barrier in the curtain walls.
•	FTX-system instead of exhaust ventilation. •	Evaluation study of individual projects •	Having the radiator pipes in the beam layout rather than the walls
•	Taping all the joins where the plastic film ends},
  author       = {Namali, Shanga and Stenberg, Hanna},
  keyword      = {lufttäthet,frånluftsventilation,provtryckning,utfackningsväggar},
  language     = {swe},
  note         = {Student Paper},
  title        = {Lufttätning av utfackningsväggar på JM},
  year         = {2015},
}