diff --git a/src/util/qpolygon-utils.js b/src/util/qpolygon-utils.js
index 72ea0db0..bf685ad8 100644
--- a/src/util/qpolygon-utils.js
+++ b/src/util/qpolygon-utils.js
@@ -744,21 +744,21 @@ export const drawRidgeRoof = (roofId, canvas, textMode) => {
   /** baseLine을 기준으로 확인용 polygon 작성 */
   const checkWallPolygon = new QPolygon(baseLinePoints, {})
 
-  /**
-   * 외벽선이 시계방향인지 시계반대 방향인지 확인
-   * @type {boolean}
-   */
-  let counterClockwise = true
-  let signedArea = 0
-
-  baseLinePoints.forEach((point, index) => {
-    const nextPoint = baseLinePoints[(index + 1) % baseLinePoints.length]
-    signedArea += point.x * nextPoint.y - point.y * nextPoint.x
-  })
-
-  if (signedArea > 0) {
-    counterClockwise = false
-  }
+  // /**
+  //  * 외벽선이 시계방향인지 시계반대 방향인지 확인
+  //  * @type {boolean}
+  //  */
+  // let counterClockwise = true
+  // let signedArea = 0
+  //
+  // baseLinePoints.forEach((point, index) => {
+  //   const nextPoint = baseLinePoints[(index + 1) % baseLinePoints.length]
+  //   signedArea += point.x * nextPoint.y - point.y * nextPoint.x
+  // })
+  //
+  // if (signedArea > 0) {
+  //   counterClockwise = false
+  // }
 
   const drawEavesFirstLines = []
   const drawEavesSecondLines = []
@@ -780,6 +780,15 @@ export const drawRidgeRoof = (roofId, canvas, textMode) => {
     const prevAngle = calculateAngle(prevLine.startPoint, prevLine.endPoint)
     const nextAngle = calculateAngle(nextLine.startPoint, nextLine.endPoint)
 
+    // const checkLine = new fabric.Line([currentLine.x1, currentLine.y1, currentLine.x2, currentLine.y2], {
+    //   stroke: 'red',
+    //   strokeWidth: 4,
+    //   parentId: roofId,
+    //   name: 'checkLine',
+    // })
+    // canvas.add(checkLine)
+    // canvas.renderAll()
+
     const checkScale = Big(10)
     const xVector = Big(nextLine.x2).minus(Big(nextLine.x1))
     const yVector = Big(nextLine.y2).minus(Big(nextLine.y1))
@@ -3039,6 +3048,26 @@ export const drawRidgeRoof = (roofId, canvas, textMode) => {
       })
       polygonPoints = getSortedPoint(uniquePoints, baseHipLines)
 
+      /*polygonPoints.forEach((point) => {
+        const checkCircle = new fabric.Circle({
+          left: point.x,
+          top: point.y,
+          radius: 4,
+          fill: 'red',
+          parentId: roofId,
+          name: 'checkCircle',
+        })
+        canvas.add(checkCircle)
+        canvas.renderAll()
+
+        /!** 확인용 라인 제거 *!/
+        canvas
+          .getObjects()
+          .filter((obj) => obj.name === 'checkCircle' || obj.name === 'checkLine')
+          .forEach((obj) => canvas.remove(obj))
+        canvas.renderAll()
+      })*/
+
       polygonPoints.forEach((currentPoint, index) => {
         const nextPoint = polygonPoints[(index + 1) % polygonPoints.length]
         const points = [currentPoint.x, currentPoint.y, nextPoint.x, nextPoint.y]
@@ -3077,6 +3106,15 @@ export const drawRidgeRoof = (roofId, canvas, textMode) => {
     const nextLine = nextBaseLine.line
     let { x1, x2, y1, y2 } = currentBaseLine
 
+    /*const checkLine = new fabric.Line([x1, y1, x2, y2], {
+      stroke: 'red',
+      strokeWidth: 4,
+      parentId: roofId,
+      name: 'checkLine',
+    })
+    canvas.add(checkLine)
+    canvas.renderAll()*/
+
     const currentVectorX = Math.sign(currentLine.x2 - currentLine.x1)
     const currentVectorY = Math.sign(currentLine.y2 - currentLine.y1)
     const currentDegree = getDegreeByChon(currentLine.attributes.pitch)
@@ -3097,11 +3135,11 @@ export const drawRidgeRoof = (roofId, canvas, textMode) => {
         .forEach((line) => {
           const lineEdge = { vertex1: { x: line.x1, y: line.y1 }, vertex2: { x: line.x2, y: line.y2 } }
           const intersection = edgesIntersection(checkEdge, lineEdge)
-          if (intersection) {
+          if (intersection && isPointOnLine(line, intersection)) {
             intersectionRoofs.push({
               line,
               intersection,
-              size: Big(intersection.x).minus(currentMidX).abs().pow(2).plus(Big(intersection.y).minus(currentMidY).abs().pow(2)).sqrt(),
+              size: Math.sqrt(Math.pow(intersection.x - currentMidX.toNumber(), 2) + Math.pow(intersection.y - currentMidY.toNumber(), 2)),
             })
           }
         })
@@ -3115,11 +3153,11 @@ export const drawRidgeRoof = (roofId, canvas, textMode) => {
         .forEach((line) => {
           const lineEdge = { vertex1: { x: line.x1, y: line.y1 }, vertex2: { x: line.x2, y: line.y2 } }
           const intersection = edgesIntersection(checkEdge, lineEdge)
-          if (intersection) {
+          if (intersection && isPointOnLine(line, intersection)) {
             intersectionRoofs.push({
               line,
               intersection,
-              size: Big(intersection.x).minus(currentMidX).abs().pow(2).plus(Big(intersection.y).minus(currentMidY).abs().pow(2)).sqrt(),
+              size: Math.sqrt(Math.pow(intersection.x - currentMidX.toNumber(), 2) + Math.pow(intersection.y - currentMidY.toNumber(), 2)),
             })
           }
         })