| Title |
A Study on the Evaluation of the Heat Transmission Performance and Improvement of Thermal Insulation of Stone Finished Curtain Wall System |
| Authors |
Seok Ho-Tae ; Jung Ji-Na ; Song Seung-Yeong |
| Keywords |
Curtain Wall ; Fastener ; Heat Transmission ; Stone Panel |
| Abstract |
With the recent trend in building tall, light-weight structures, stone is often used as the finishing material. The stone curtain wall is widely used not only in commercial buildings but also in the outer wall of residential buildings due to its economic efficiency and easy installation requirements. Moreover, using stone adds beauty and luxury to the structure and provides excellent durability, which are requirements of high-rise structures.
This study aims to evaluate the performance of heat transmission and to present a proposal for the improvement of thermal insulation using a mock-up test and two models: the stone curtain wall and the stone panel curtain wall. This study analyzed the heat transmission performance of each model and application. It was determined that thermal insulation can still be further improved. As for the stone curtain wall, the heat bridge occurs along the main structure as the continuous construction of the insulating material is not feasible because the construction should be done inside the steel frame, which causes a difference in temperature between materials in the wall. To intercept the heat bridge, the insulating paint coating method, the hard urethane pad insertion method and the urethane form coating method were suggested for fastening the unit that connects the wall and slab. The result shows that the insulating paint coating method and the hard urethane pad insertion method improve the thermal insulation performance of the fastening unit.
The results showed that using the double outer insulation construction were not effective in insulating the stone panel curtain wall because the internal materials. However, it was shown that the insulation paint coating method and hard urethane pad insertion method were more effective than the existing method in improving the insulation performance of the wall in the fastening unit where the direct method to improve the thermal insulation performance was adopted. |