PVC waterproofing sheet is applied in exposed form on the rooftop of building. However, existing reinforcing fiber is would be occurred defect of waterproofing layer tear, because it has a anisotropy.
As a result of test, while A-specimen and C-specimen have not the anisotropy, B-specimen has the anisotropy. B-specimen which is applied patterns of reinforcing fiber of I-type, is wide variations in the mechanical properties. C-specimen which is applied patterns of reinforcing fiber of Z-type, is not wide variations in the mechanical properties because it has the anisotropy.

• 이선규((주)BK방수ㆍ방식연구소, 연구원, 공학석사) | Lee, Sun Gyu
• 이정훈((주)BK방수ㆍ방식연구소, 연구원, 공학석사) | Lee, Jung Hoon
• 송제영((주)BK방수ㆍ방식연구소, 소장, 공학석사) | Song, Je Young
• 최은규(서울과학기술대학교 건설기술연구소, 연구원, 공학석사) | Choi, Eun Kyu
• 오상근(서울과학기술대학교 건축학부 교수, 공학박사) | Oh, Sang Keun 교신저자