diff --git a/src/hooks/module/useTrestle.js b/src/hooks/module/useTrestle.js
index 19da5b4e..fad9a810 100644
--- a/src/hooks/module/useTrestle.js
+++ b/src/hooks/module/useTrestle.js
@@ -799,6 +799,7 @@ export const useTrestle = () => {
       const parent = canvas.getObjects().find((obj) => obj.id === surface.parentId)
       const { directionText, roofMaterial, moduleCompass, surfaceCompass } = parent
       const slope = Number(roofMaterial.pitch)
+      const angle = Number(roofMaterial.angle)
       const roofMaterialIndex = parent.roofMaterial.index
       const { nameJp: roofMaterialIdMulti } = roofMaterial
       const moduleSelection = moduleSelectionData?.roofConstructions?.find((construction) => construction.roofIndex === roofMaterialIndex)
@@ -836,7 +837,7 @@ export const useTrestle = () => {
         supportMeaker,
         slope: +roofSizeSet === 3 ? 0 : slope,
         classType: currentAngleType === 'slope' ? '0' : '1',
-        angle: +roofSizeSet === 3 ? 0 : getDegreeByChon(slope),
+        angle: +roofSizeSet === 3 ? 0 : angle,
         azimuth: getAzimuth(parent),
         moduleList,
       }