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4. Discussion
The most efficient way to decrease the energy consumption of buildings is to increase the
insulation of the building thermal envelope (ceilings, walls, and floors) and improve the thermal
performance of windows and doors.
Recently, phenolic foam board, low‐emissivity insulation, and vacuum insulation panel have
widely been used as insulations for low energy buildings in Korea.
The thermal transmittance of wall assembly with 150mm concrete + 100mm Low‐E Insulation +
40mm air space + 4mm Al. Panel (or 30mm granite or 90mm brick) was 0.12W/m2∙K
Vacuum Insulation Panel is used as building insulation on the inside and outside of a wall and
under the ceiling and on the floor of buildings.
5. Conclusions
To achieve the U value of 0.12W/m2K for the zero energy building envelopes, EPS, phenolic foam
board, low‐emissivity insulation and vacuum insulation panel is respectively used as thick as 280mm,
170mm, 100mm and 20mm.
Funding: This research was supported by National Research Foundation of Korea (NRF) (No.
2017R1D1A3B03028249).
Acknowledgments: The test reports for fiber glass core material vacuum insulation panel were provided by Green
Insulator Co. and the test reports for the low‐e insulation were provided by several Korean reflective insulation
companies.
References
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Norbert Lechner. HEATING, COOLING, LIGHTING Sustainable Design Methods for Architects, 4 th ed. New
Jersey: John Wiley & Sons., USA, 2015, p.2.
Karsten Voss and Eike Musall. NET ZERO ENERGY BUILDINGS, Detail, Munich, Germany, 2013, p.12
Kwon, Y.C. Insulation Applications for Buildings in Korea, Proceedings of 7th Global Insulation Conference, Riga,
Latvia, 2012.
Kwon, Y.C.; Kim, Y.O.; Lee, G.Y. An Innovative Low‐Emissivity Insulation Developed in Korea, STP 1574
Next‐Generation Thermal Insulation Challenges and Opportunities, ASTM International, New York, USA, 2014,
pp101‐118.
OCI Technical Data
Tae Min Industrial Test Reports
Kwon, Y.C.; Kim, S. Research on the Architectural Applications of High‐Performance Vacuum Insulation
Panel, LHI Journal 2019, Vol.37, pp.31‐40.
Green Insulator Technical Data
State of The Art Insulation Technology for Zero Energy Buildings
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