diff --git a/src/util/skeleton-utils.js b/src/util/skeleton-utils.js
index bce7dd16..412b40b4 100644
--- a/src/util/skeleton-utils.js
+++ b/src/util/skeleton-utils.js
@@ -1024,7 +1024,7 @@ if((roof.moveUpDown??0 > 0) ) {
       } else if (getOrientation(roofLine) === 'horizontal') { //red
 
         if (['top', 'bottom'].includes(mLine.position)) {
-          if(wallLine.y1 === wallBaseLine.y1) {
+          if(Math.abs(wallLine.y1 - wallBaseLine.y1) < 0.1) {
             return false
           }
           const positionType =
@@ -1067,20 +1067,19 @@ if((roof.moveUpDown??0 > 0) ) {
 
               if(isStartEnd.end){
                 const moveDist = Big(wallLine.y2).minus(wallBaseLine.y2).abs().toNumber()
-                sPoint = {x: wallBaseLine.x2, y: wallBaseLine.y2};
-                newPEnd.x = wallBaseLine.x2;
-
+                sPoint = { x: wallBaseLine.x2, y: wallBaseLine.y2 }
+                newPEnd.x = wallBaseLine.x2
 
                 const newPointY = Big(roofLine.y1).plus(moveDist).toNumber()
 
                 const pDist = Big(wallLine.y1).minus(roofLine.y1).abs().toNumber()
                 const pLineX = Big(roofLine.x2).minus(0).abs().toNumber()
-                let idx = (roofLine.length < index + 1)?0:index
-                const pLineY = roofLines[idx+1].y2
+                let idx = roofLine.length < index + 1 ? 0 : index
+                const pLineY = roofLines[idx + 1].y2
                 getAddLine({ x: newPEnd.x, y: newPEnd.y }, { x: sPoint.x, y: sPoint.y }, 'blue')
-                findPoints.push({ x: sPoint.x, y: sPoint.y });
+                findPoints.push({ x: sPoint.x, y: sPoint.y })
 
-                if(Math.abs(wallBaseLine.x2 -  wallLine.x2) < 0.1) {
+                if (Math.abs(wallBaseLine.x2 - wallLine.x2) < 0.1) {
                   getAddLine({ x: pLineX, y: pLineY }, { x: pLineX, y: newPointY }, 'green')
                   getAddLine({ x: pLineX, y: newPointY }, { x: sPoint.x, y: sPoint.y }, 'pink')
                 }
@@ -1090,22 +1089,26 @@ if((roof.moveUpDown??0 > 0) ) {
               break;
             case 'top_out':
               console.log("findInteriorPoint result:::::::", isStartEnd);
+              if (isStartEnd.start ) {
+                const moveDist = Big(wallLine.y1).minus(wallBaseLine.y1).abs().toNumber()
+                const dist = Math.abs(roofLine.y1 - wallLine.y1)
+                const aStartX = Big(newPStart.x).plus(moveDist).toNumber()
+                const bStartX = Big(wallLine.x1).plus(moveDist).toNumber()
 
-              const moveY = Math.abs(wallLine.y1 - wallBaseLine.y1)
-              const dist = Math.abs(roofLine.y1 - wallLine.y1)
-              const aStartX = Math.abs(newPStart.x + moveY)
-              const bStartX = Math.abs(wallLine.x1 + moveY)
+                //newPStart.x += moveX
+                //wallLine.x1 += moveX
+                findPoints.push({ x: aStartX, y: newPEnd.y });
+                const inLine = findLineContainingPoint(innerLines, { x: aStartX, y: newPEnd.y })
+                console.log("startLines:::::::", inLine);
+                getAddLine({ x: bStartX, y: wallLine.y1 }, { x: roofLine.x1, y: wallLine.y1 }, 'darkblue')
+                getAddLine({ x: bStartX, y: wallLine.y2 }, { x: inLine.x2, y: inLine.y2 }, 'pink')
+                const eLineX = Big(bStartX).minus(wallLine.x1).abs().toNumber()
+                newPEnd.x += eLineX
+                newPStart.x = aStartX
+              }
+              if(isStartEnd.end){
 
-              //newPStart.x += moveX
-              //wallLine.x1 += moveX
-              findPoints.push({ x: aStartX, y: newPEnd.y });
-              const inLine = findLineContainingPoint(innerLines, { x: aStartX, y: newPEnd.y })
-              console.log("startLines:::::::", inLine);
-              getAddLine({ x: bStartX, y: wallLine.y1 }, { x: roofLine.x1, y: wallLine.y1 })
-              getAddLine({ x: bStartX, y: wallLine.y2 }, { x: inLine.x2, y: inLine.y2 }, 'pink')
-              const eLineX = Math.abs(bStartX - wallLine.x1)
-              newPEnd.x += eLineX
-              newPStart.x = aStartX
+              }
               break;
             case 'bottom_in':