Moisture performance of sealed attics in the mixed-humid climate

Boudreaux, Philip; Pallin, Simon; Jackson, Roderick

doi:10.2172/1113688

Cited by 7 publications

(17 citation statements)

References 8 publications

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“…On January 16, 2012 a Carrier Greenspeed unit capable of variable-speed control of the indoor blower and compressor was put into operation for comfort conditioning the retrofit home (CC2). Boudreaux et al (2013) however found in CC2 and in four other homes with sealed attics compared to four control homes with vented attics, that the attic and interiors were more humid, on average, in the homes with sealed-attic construction as compared to homes with vented attics.…”

Section: The Semi-conditioned Attic In Cc2 (Retrofit House)mentioning

confidence: 65%

“…There was no indication of mold or material degradation in the spray foam sealed attic or conditioned space during the course of study. The roof sheathing moisture content stayed below 20% as measured midway between the soffit and ridge by Boudreaux et al (2013). Also, the relative humidity at the roof sheathing stayed within the ASHRAE 160 design criteria except for a short time during the 2011/2012 winter when the ductwork was not operating in the attic.…”

Section: Executive Summarymentioning

confidence: 82%

“…Jackson et al (2014) and Boudreaux et al (2013) have conducted a thorough study of the sealed attic concept, and the interested reader is referred to their work for more information.…”

Section: The Semi-conditioned Attic In Cc2 (Retrofit House)mentioning

confidence: 99%

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Final review of the Campbell Creek demonstrations showcased by Tennessee Valley Authority

Gehl¹,

Munk²,

Jackson³

et al. 2015

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Section: The Semi-conditioned Attic In Cc2 (Retrofit House)mentioning

confidence: 65%

Section: Executive Summarymentioning

confidence: 82%

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Final review of the Campbell Creek demonstrations showcased by Tennessee Valley Authority

Gehl¹,

Munk²,

Jackson³

et al. 2015

Self Cite

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“…Large diurnal swings in absolute and relative humidity were observed in the attics of all six monitored test homes (four in LaFayette and two in Savannah). The fluctuations of the absolute humidity levels in the attics are believed to be highly influenced by the "sponge" effect of ocSPF rooflines, which is due to moisture loads driven in and out of the foam and roof structure by solar heating and night cooling (Boudreaux, Pallin, and Jackson 2014). The moisture levels in the sealed attics at all six sites show similar daily moisture levels throughout the year.…”

Section: Impact On Encapsulated Attic Air Temperature and Humiditymentioning

confidence: 94%

Advancing Replicable Solutions for High-Performance Homes in the Southeast

Roberts¹,

Sweet²,

Francisco³

2016

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The work presented in this report does not represent performance of any product relative to regulated minimum efficiency requirements. The laboratory and/or field sites used for this work are not certified rating test facilities. The conditions and methods under which products were characterized for this work differ from standard rating conditions, as described. Because the methods and conditions differ, the reported results are not comparable to rated product performance and should only be used to estimate performance under the measured conditions. v Contents List of Figures .

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“…No intentional space conditioning was provided in the unvented attic space; the space will be run at conditions between interior set point and exterior conditions, which is common for this type of roof assembly. This was done to look at worst-case conditions in terms of humidity buildup (per Boudreaux et al 2013 andLstiburek 2014).…”

mentioning

confidence: 99%