diff --git a/src/tile.cc b/src/tile.cc
index af68a39..4bee912 100644
--- a/src/tile.cc
+++ b/src/tile.cc
@@ -654,6 +654,17 @@ static void tileRefreshGame(Rect* rect, int elevation)
     gTileWindowRefreshProc(&rectToUpdate);
 }
 
+// 0x4B1634
+void tile_toggle_roof(bool refresh)
+{
+    gTileRoofIsVisible = !gTileRoofIsVisible;
+
+    if (refresh) {
+        // NOTE: Uninline.
+        tileWindowRefresh();
+    }
+}
+
 // 0x4B166C
 int tileRoofIsVisible()
 {
diff --git a/src/tile.h b/src/tile.h
index ae227d2..97acc8f 100644
--- a/src/tile.h
+++ b/src/tile.h
@@ -26,6 +26,7 @@ void tileEnable();
 void tileWindowRefreshRect(Rect* rect, int elevation);
 void tileWindowRefresh();
 int tileSetCenter(int tile, int flags);
+void tile_toggle_roof(bool refresh);
 int tileRoofIsVisible();
 int tileToScreenXY(int tile, int* x, int* y, int elevation);
 int tileFromScreenXY(int x, int y, int elevation, bool ignoreBounds = false);