diff --git a/src/hooks/roofcover/useRoofAllocationSetting.js b/src/hooks/roofcover/useRoofAllocationSetting.js
index 69479eef..70874765 100644
--- a/src/hooks/roofcover/useRoofAllocationSetting.js
+++ b/src/hooks/roofcover/useRoofAllocationSetting.js
@@ -323,42 +323,19 @@ export function useRoofAllocationSetting(id) {
   }
 
   const drawOriginRoofLine = () => {
-    // outerLinePoints 배열을 이용하여 빨간색 Line 객체들 생성
-    if (outerLinePoints && outerLinePoints.length > 1) {
-      // 연속된 점들을 연결하여 라인 생성
-      for (let i = 0; i < outerLinePoints.length - 1; i++) {
-        const point1 = outerLinePoints[i]
-        const point2 = outerLinePoints[i + 1]
-
-        const line = new fabric.Line([point1.x, point1.y, point2.x, point2.y], {
-          stroke: 'black',
-          strokeDashArray: [5, 2],
-          strokeWidth: 1,
-          selectable: false,
-          name: 'originRoofOuterLine',
-          visible: outlineDisplay,
-        })
-
-        canvas.add(line)
-      }
-
-      // 마지막 점과 첫 점을 연결하여 폐곡선 만들기
-      if (outerLinePoints.length > 2) {
-        const lastPoint = outerLinePoints[outerLinePoints.length - 1]
-        const firstPoint = outerLinePoints[0]
-
-        const closingLine = new fabric.Line([lastPoint.x, lastPoint.y, firstPoint.x, firstPoint.y], {
-          stroke: 'red',
-          strokeWidth: 2,
-          selectable: false,
-          name: 'originRoofOuterLine',
-        })
-
-        canvas.add(closingLine)
-      }
-
-      canvas.renderAll()
-    }
+    const wallLines = canvas.getObjects().filter((obj) => obj.name === POLYGON_TYPE.WALL)
+    /** 벽면 삭제 */
+    wallLines.forEach((wallLine) => {
+      wallLine.set({
+        stroke: 'black',
+        strokeDashArray: [5, 2],
+        strokeWidth: 1,
+        selectable: false,
+        name: 'originRoofOuterLine',
+        visible: outlineDisplay,
+      })
+    })
+    canvas.renderAll()
   }
 
   /**