diff --git a/Resources/Prototypes/_CP14/Entities/Structures/Roof/base.yml b/Resources/Prototypes/_CP14/Entities/Structures/Roof/base.yml
index 96fc07dd3a..c535943cb5 100644
--- a/Resources/Prototypes/_CP14/Entities/Structures/Roof/base.yml
+++ b/Resources/Prototypes/_CP14/Entities/Structures/Roof/base.yml
@@ -26,6 +26,7 @@
     key: CP14roof
     base: roof
   - type: IsRoof
+  - type: SunShadowCast
 
 - type: entity
   parent: