| Title |
A Study on the Defect Causes Type for Poly-Urethane Waterproofing in Roof |
| Keywords |
poly-urethane membrane ; roof water proofing |
| Abstract |
Up to now, the various water proofing methods and materials have been developed. For the water proofing methods, polyurethane membrane method is one of the commonly used and increase market share in water proofing industry due to it's many advantages. However, in spite of it's many advantages over other water proofing methods, water proofing defect occurs frequently. With this respect, the study investigate water proofing defect causes in roof water proofing. The study investigate 13 water proofing construction site in Sunchon city in oder to find urethane membrane defection causes and their type. As a results of the study, the followings are founded.
1) Among various water proofing defection causes, problems of water remain phenomenon due to surface horizontal level defect which occupy 25 % of total defect causes is the most commonly occur.
2) The second defect cause which occupy 15 % of total defect causes is the swell up phenomenon due to surface dry problem.
For the prevention of water proofing defection in roof using urethane membrane, the followings are recommended.
1) Faultless surface treatment before using urethane membrane
2) Develop improved urethane membrane material
3) Improve urethane membrane construction technique |