diff --git a/src/hooks/common/useRoofFn.js b/src/hooks/common/useRoofFn.js
index 245739b1..31e31d13 100644
--- a/src/hooks/common/useRoofFn.js
+++ b/src/hooks/common/useRoofFn.js
@@ -138,6 +138,7 @@ export function useRoofFn() {
 
     polygon.set('fill', null)
     polygon.set('fill', pattern)
+    polygon.roofMaterial = roofMaterial
     polygon.canvas?.renderAll()
   }
   return { setSurfaceShapePattern }