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Insulation Details and Energy Performance of Post-Beam Timber House for Insulation Standards
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 Title & Authors
Insulation Details and Energy Performance of Post-Beam Timber House for Insulation Standards
Kim, Sejong; Park, Joo-Saeng;
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Han-green project, which pursues Korean style post and beam timber house with traditional construction technique of Han-ok, has been carried out in KFRI (Korea Forest Research Institute) since 2006. Recently, the improvement of its building energy performance was studied with energy-saving elements. This study was conducted to provide the insulation details of building envelopes in a post-beam timber house for recent enhanced insulation standards and following effect on building energy performance. The level of thermal transmittance (U-value) values of building envelopes was composed of two stages: present Korean insulation standards and passive house. To evaluate building energy performance, the building airtightness values of two stages was ACH50 = for common domestic timber house constructed recently, and ACH50 = for passive house. Consequently, four cases of the building energy performance according to the combination of U-value with airtightness were evaluated. The test house for evaluation was located in Seoul and its energy performance was evaluated with CE3 commercial building energy simulation program. The result showed that enhanced insulation from level I to II reduced of annual heating energy demand regardless of airtightness.
insulation detail;energy performance;thermal transmittance;airtightness;post-beam timber house;
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