Can crawl space temperature and moisture conditions be calculated with a whole-building hygrothermal simulation tool?

Lies Vanhoutteghem, Martin Morelli, Lars Schiøtt Sørensen

Publikation: Bidrag til tidsskriftKonferenceartikel i tidsskriftForskningpeer review

1 Citation (Scopus)
123 Downloads (Pure)

Resumé

The hygrothermal behaviour of an outdoor ventilated crawl space with two different designs of the floor structure was investigated. The first design had 250 mm insulation and visible wooden beams towards the crawl space. The second design had 300 mm insulation and no visible wooden beams. One year of measurements was compared with simulations of temperature and moisture condition in the floor structure and crawl space. The measurements showed that the extra 50 mm insulation placed below the beams reduced moisture content in the beams below 20 weight% all year. A reasonable agreement between the measurements and simulations was found; however, the evaporation from the soil was a dominant parameter affecting the hygrothermal response in the crawl space and floor structure.
OriginalsprogEngelsk
TidsskriftEnergy Procedia
Vol/bind132
Sider (fra-til)688-693
Antal sider6
ISSN1876-6102
DOI
StatusUdgivet - 2017
Begivenhed11th Nordic Symposium on Building Physics - The Electro Building at Gløshaugen campus, NTNU, Trondheim, Norge
Varighed: 11 jun. 201714 jun. 2017
Konferencens nummer: 11
http://www.ntnu.edu/web/nsb2017/home
http://www.ntnu.edu/nsb2017

Konference

Konference11th Nordic Symposium on Building Physics
Nummer11
LokationThe Electro Building at Gløshaugen campus, NTNU
LandNorge
ByTrondheim
Periode11/06/201714/06/2017
Internetadresse

Fingerprint

Insulation
Moisture
Mineral wool
Solar radiation
Roofs
Temperature

Emneord

  • Outdoor ventilated crawl space
  • measurements
  • whole building simulation
  • large instulation thickness
  • temperature
  • moisture content

Citer dette

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title = "Can crawl space temperature and moisture conditions be calculated with a whole-building hygrothermal simulation tool?",
abstract = "Temperature and moisture measurements were made in a ventilated attic on a house with 200 mm mineral wool insulation. The measurements showed that 1) solar radiation had a great effect on the temperature in the attic; 2) moisture content reached a level below the risk of mold formation – no mold was seen. The measurements were compared with simulations for insulation thickness from 50 to 500 mm. The calculations indicated that the temperature was nearly the same when the attic was insulated with 200 to 500 mm; hence increased insulation was not a problem. The important assumption was that the roof was constructed with a moisture barrier.",
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Can crawl space temperature and moisture conditions be calculated with a whole-building hygrothermal simulation tool? / Vanhoutteghem, Lies; Morelli, Martin; Sørensen, Lars Schiøtt.

I: Energy Procedia, Bind 132, 2017, s. 688-693.

Publikation: Bidrag til tidsskriftKonferenceartikel i tidsskriftForskningpeer review

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AU - Morelli, Martin

AU - Sørensen, Lars Schiøtt

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N2 - Temperature and moisture measurements were made in a ventilated attic on a house with 200 mm mineral wool insulation. The measurements showed that 1) solar radiation had a great effect on the temperature in the attic; 2) moisture content reached a level below the risk of mold formation – no mold was seen. The measurements were compared with simulations for insulation thickness from 50 to 500 mm. The calculations indicated that the temperature was nearly the same when the attic was insulated with 200 to 500 mm; hence increased insulation was not a problem. The important assumption was that the roof was constructed with a moisture barrier.

AB - Temperature and moisture measurements were made in a ventilated attic on a house with 200 mm mineral wool insulation. The measurements showed that 1) solar radiation had a great effect on the temperature in the attic; 2) moisture content reached a level below the risk of mold formation – no mold was seen. The measurements were compared with simulations for insulation thickness from 50 to 500 mm. The calculations indicated that the temperature was nearly the same when the attic was insulated with 200 to 500 mm; hence increased insulation was not a problem. The important assumption was that the roof was constructed with a moisture barrier.

KW - Outdoor ventilated crawl space

KW - measurements

KW - whole building simulation

KW - large instulation thickness

KW - temperature

KW - moisture content

KW - Moisture design

KW - Roof attic

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KW - Measurements

KW - Simulations

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