Thermal Performance of Sandwich Insulation System According to the Type of Form-Tie

2013 ◽  
Vol 689 ◽  
pp. 269-272 ◽  
Author(s):  
Yu Min Kim ◽  
Yong Jun Lee ◽  
Gyeong Seok Choi ◽  
Jae Sik Kang

Highly insulated envelope or external insulation systems are being applied in recent energy saving buildings to reduce the heat loss through envelope. Internal insulation systems are applied to most apartments in Korea because they are inexpensive and convenient to construct. However, the internal insulation systems have poor performance due to the heat bridges through structures such as slabs. The external insulation systems have better thermal performance because the heat bridges through the structure are rarely formed. But it has problems regarding the external insulator separation due to strong winds, spread of fire due to insulator combustion in case of fire, formation of heat bridges through the connectors between structure and external insulation. To supplement the weaknesses of the internal and the external insulation systems, a sandwich insulation system has been suggested. In this study, the thermal performance of sandwich insulation system for apartment buildings was evaluated according to two type of the form-tie material.

2014 ◽  
Vol 1073-1076 ◽  
pp. 1263-1270 ◽  
Author(s):  
Feng Qian

The text elaborates on the significance and profile of insulation system for external wall of residential buildings in our country, makes comprehensive comparison among the external wall's self-insulation system, external wall's internal insulation system, sandwich composite insulation system and external wall's external insulation system, and reveals that the external wall's external insulation system has the advantage of strong feasibility, law cost, effective heat insulation break bridge and protective structure, which offers great potential for existing buildings in energy-saving rebuilding, thus finding a widest application and enjoying a promising market prospects.


2012 ◽  
Vol 174-177 ◽  
pp. 988-992
Author(s):  
Shuang Mei Cao

This thesis analyzes the current situation of the heat insulation system of composite wall in China. Through comparison, it points out that heat insulation system is the trend of the development for heat preservation and energy saving, and meanwhile, it gives direction for further research to several different new type heat insulation systems.


2011 ◽  
Vol 374-377 ◽  
pp. 1438-1441
Author(s):  
Zhen Sha ◽  
Nian Ping Li ◽  
Bai Jun Wang ◽  
Yong Yang ◽  
Zhen Hui Xiao

The mathematical analysis model of LCC of self-thermal insulation system of external wall that is applicable to Changsha region is established by using degree days and present worth factor. And the LCC of three commonly used self-thermal insulation systems in Changsha is analyzed by using this model. Analysis results have proven that self-thermal insulation system of external wall has very significant comprehensive economic benefits compared with the wall that energy-saving measures are not taken, and it has an important practical significance to promote the development of energy-saving building in Changsha, China.


2015 ◽  
Vol 19 (sup5) ◽  
pp. S5-1049-S5-1053
Author(s):  
S. H. Cho ◽  
H. Y. Lee ◽  
J. S. Kang ◽  
Y. J. Lee ◽  
G. S. Choi

Buildings ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 63
Author(s):  
Xinwen Zhang ◽  
Gun-Joo Jung ◽  
Kyu-Nam Rhee

Most apartment buildings in South Korea use internal insulation systems to reduce building energy demand. However, thermal bridges such as balcony slabs in apartment buildings still lead to significant heat loss in winter, because the internal insulation system is not continuous in the balcony slab structure, and floor heating systems are commonly used in residential buildings. Therefore, this study investigates two types of thermal break elements, namely thermal break (TB) and thermal break-fiber glass reinforced polymer (TB-GFRP), to improve the thermal resistance of a balcony thermal bridge. To understand the effects of balcony thermal bridges with and without thermal break elements, the linear thermal transmittances of different balcony thermal bridges were analyzed using Physibel simulations. Then, the heating demand of a model apartment under varying thermal bridge conditions was evaluated using TRNSYS simulations. To understand the effect of insulation systems on heat loss through a balcony thermal bridge, apartments with internal and external insulation systems were studied. Whether the apartment was heating was also considered in the thermal transmittance analysis. Thus, the linear thermal transmittance of the thermal bridges with thermal break elements was reduced by more than 60%, and the heating energy demands were reduced by more than 8%.


2012 ◽  
Vol 476-478 ◽  
pp. 1596-1602
Author(s):  
Xiao Yan Wu ◽  
Yi Ying Luo

A weathering resistance test was made to exterior wall external insulation systems with foamed glass decorated with coating and facing brick in this paper. The results show that the change of ambient temperature has large effect on the external insulation systems. Because of the phenomenon of stress concentration, there are many cracks in the windows position. On the other hand, the system decorated with facing brick has much less cracks than the system with coating, and its surface layer has no hollowing. So from the perspective of weathering resistance, the exterior wall external insulation systems with foamed glass decorated with facing brick is better than the system decorated with coating.


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