Flexible Residential Test Facility: Impact of Infiltration and Ventilation on Measured Heating Season Energy and Moisture Levels

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Description

Two identical laboratory homes designed to model existing Florida building stock were sealed and tested to 2.5 ACH50. Then, one was made leaky with 70% leakage through the attic and 30% through windows, to a tested value of 9 ACH50. Reduced energy use was measured in the tighter home (2.5 ACH50) in the range of 15% to 16.5% relative to the leaky (9 ACH50) home. Internal moisture loads resulted in higher dew points inside the tight home than the leaky home. Window condensation and mold growth occurred inside the tight home. Even cutting internal moisture gains in half to 6.05 ... continued below

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33 p.

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Vieira, R.; Parker, D.; Fairey, P.; Sherwin, J.; Withers, C. & Hoak, D. September 1, 2013.

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Description

Two identical laboratory homes designed to model existing Florida building stock were sealed and tested to 2.5 ACH50. Then, one was made leaky with 70% leakage through the attic and 30% through windows, to a tested value of 9 ACH50. Reduced energy use was measured in the tighter home (2.5 ACH50) in the range of 15% to 16.5% relative to the leaky (9 ACH50) home. Internal moisture loads resulted in higher dew points inside the tight home than the leaky home. Window condensation and mold growth occurred inside the tight home. Even cutting internal moisture gains in half to 6.05 lbs/day, the dew point of the tight home was more than 15 degrees F higher than the outside dry bulb temperature. The homes have single pane glass representative of older Central Florida homes.

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33 p.

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  • Related Information: Work performed by BA-PIRC/Florida Solar Energy Center, Cocoa, Florida

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  • Report No.: DOE/GO-102013-4041
  • Grant Number: AC36-08GO28308
  • DOI: 10.2172/1096681 | External Link
  • Office of Scientific & Technical Information Report Number: 1096681
  • Archival Resource Key: ark:/67531/metadc837862

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • September 1, 2013

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

Description Last Updated

  • April 5, 2017, 6:24 p.m.

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Vieira, R.; Parker, D.; Fairey, P.; Sherwin, J.; Withers, C. & Hoak, D. Flexible Residential Test Facility: Impact of Infiltration and Ventilation on Measured Heating Season Energy and Moisture Levels, report, September 1, 2013; Golden, Colorado. (digital.library.unt.edu/ark:/67531/metadc837862/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.