In Hanoks which are Korean traditional houses, gudeuls (ondols) are more important than other elements. Recently, demand for Hanoks has been rapidly increasing thanks to the effects of Korean waves and rediscovery of traditions. This paper traced the process of development of gudeul construction technology to examine the definitions of terns and changes in the types of gudeuls and discussed the prospect of future gudeul construction technology.

Abstract
 Ⅰ. Introduction
 Ⅱ. Definition, Structure, and Future of Gudeul
 Ⅲ. Conclusion
 Reference

• Kim Jun Bong(Beijing Institute of Technology, President of ISO)
• Yoo Uoo Sang(School of Architecture, Chonnam National University)
• Jin Wu Zhe(Lotte Chian Director)