Hygrothermal performance of light steel-framed walls

Jyri Nieminen, Mikael Salonvaara

Research output: Book/ReportReportProfessional

Abstract

Hygrothermal performance of a new light-gauge steel framed building envelope system has been analyzed using 3-D thermal simulations, 2-D combined heat, air and moisture transfer simulations, laboratory testing in a calibrated and guarded hot box (ISO 8990), weather resistance tests for full-sized structures, corrosion tests and field measurements at experimental buildings in Ylöjärvi, Central Finland. The results show that a modern steel wall structure based on perforated steel profiles performs satisfactorily in the cold climate of Finland. The perforations reduce heat loss along the web of the profile significantly. The field measurements show that no condensation has occurred in the frame system. Temperature measurements and infrared surveys in demonstration buildings show that surface temperatures are sufficiently high to prevent surface condensation or even increased humidity on the surface. According to the calculations, there are no severe corrosion risks in the steel frames in the Finnish climate. The climate, however, has an important effect on the performance, and the structures should be designed with regard to climatic conditions.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages29
ISBN (Electronic)951-38-5773-5
ISBN (Print)951-38-5772-7
Publication statusPublished - 2000
MoE publication typeD4 Published development or research report or study

Publication series

NameVTT Tiedotteita - Meddelanden - Research Notes
PublisherVTT
No.2070
ISSN (Print)1235-0605
ISSN (Electronic)1455-0865

Fingerprint

Steel
Condensation
Corrosion
Heat losses
Temperature measurement
Gages
Atmospheric humidity
Moisture
Demonstrations
Infrared radiation
Testing
Air
Temperature
Hot Temperature

Keywords

  • building envelope
  • steel structures
  • light-gauge steel
  • corrosion tests
  • weather resistance
  • moisture
  • surface condensation
  • climatic conditions
  • heat transfer

Cite this

Nieminen, J., & Salonvaara, M. (2000). Hygrothermal performance of light steel-framed walls. Espoo: VTT Technical Research Centre of Finland. VTT Tiedotteita - Meddelanden - Research Notes, No. 2070
Nieminen, Jyri ; Salonvaara, Mikael. / Hygrothermal performance of light steel-framed walls. Espoo : VTT Technical Research Centre of Finland, 2000. 29 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 2070).
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Nieminen, J & Salonvaara, M 2000, Hygrothermal performance of light steel-framed walls. VTT Tiedotteita - Meddelanden - Research Notes, no. 2070, VTT Technical Research Centre of Finland, Espoo.

Hygrothermal performance of light steel-framed walls. / Nieminen, Jyri; Salonvaara, Mikael.

Espoo : VTT Technical Research Centre of Finland, 2000. 29 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 2070).

Research output: Book/ReportReportProfessional

TY - BOOK

T1 - Hygrothermal performance of light steel-framed walls

AU - Nieminen, Jyri

AU - Salonvaara, Mikael

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N2 - Hygrothermal performance of a new light-gauge steel framed building envelope system has been analyzed using 3-D thermal simulations, 2-D combined heat, air and moisture transfer simulations, laboratory testing in a calibrated and guarded hot box (ISO 8990), weather resistance tests for full-sized structures, corrosion tests and field measurements at experimental buildings in Ylöjärvi, Central Finland. The results show that a modern steel wall structure based on perforated steel profiles performs satisfactorily in the cold climate of Finland. The perforations reduce heat loss along the web of the profile significantly. The field measurements show that no condensation has occurred in the frame system. Temperature measurements and infrared surveys in demonstration buildings show that surface temperatures are sufficiently high to prevent surface condensation or even increased humidity on the surface. According to the calculations, there are no severe corrosion risks in the steel frames in the Finnish climate. The climate, however, has an important effect on the performance, and the structures should be designed with regard to climatic conditions.

AB - Hygrothermal performance of a new light-gauge steel framed building envelope system has been analyzed using 3-D thermal simulations, 2-D combined heat, air and moisture transfer simulations, laboratory testing in a calibrated and guarded hot box (ISO 8990), weather resistance tests for full-sized structures, corrosion tests and field measurements at experimental buildings in Ylöjärvi, Central Finland. The results show that a modern steel wall structure based on perforated steel profiles performs satisfactorily in the cold climate of Finland. The perforations reduce heat loss along the web of the profile significantly. The field measurements show that no condensation has occurred in the frame system. Temperature measurements and infrared surveys in demonstration buildings show that surface temperatures are sufficiently high to prevent surface condensation or even increased humidity on the surface. According to the calculations, there are no severe corrosion risks in the steel frames in the Finnish climate. The climate, however, has an important effect on the performance, and the structures should be designed with regard to climatic conditions.

KW - building envelope

KW - steel structures

KW - light-gauge steel

KW - corrosion tests

KW - weather resistance

KW - moisture

KW - surface condensation

KW - climatic conditions

KW - heat transfer

M3 - Report

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ER -

Nieminen J, Salonvaara M. Hygrothermal performance of light steel-framed walls. Espoo: VTT Technical Research Centre of Finland, 2000. 29 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 2070).