diff --git a/src/components/floor-plan/modal/placementShape/PlacementShapeSetting.jsx b/src/components/floor-plan/modal/placementShape/PlacementShapeSetting.jsx
index a36f0cb4..7ed4e56e 100644
--- a/src/components/floor-plan/modal/placementShape/PlacementShapeSetting.jsx
+++ b/src/components/floor-plan/modal/placementShape/PlacementShapeSetting.jsx
@@ -238,11 +238,12 @@ export default function PlacementShapeSetting({ id, pos = { x: 50, y: 180 }, set
                     <div className="placement-option">
                       <div className="grid-select no-flx" style={{ width: '171px' }}>
                         <QSelectBox
+                          title={basicSetting.roofSizeSet === '3' ? getMessage('modal.placement.initial.setting.size.none.pitch') : ''}
                           ref={roofRef.roofCd}
                           options={roofMaterials.map((roof, index) => {
                             return { ...roof, name: globalLocale === 'ko' ? roof.roofMatlNm : roof.roofMatlNmJp }
                           })}
-                          value={currentRoofMaterial}
+                          value={basicSetting.roofSizeSet === '3' ? null : currentRoofMaterial}
                           onChange={(e) => handleRoofTypeChange(e.roofMatlCd)}
                           sourceKey="id"
                           targetKey="id"