diff --git a/hub/exports/building_energy/idf.py b/hub/exports/building_energy/idf.py
index c3a26635..c6a26d1b 100644
--- a/hub/exports/building_energy/idf.py
+++ b/hub/exports/building_energy/idf.py
@@ -780,7 +780,10 @@ class Idf:
       for surface in building.surfaces:
         if surface.type == cte.WALL:
           wwr = surface.associated_thermal_boundaries[0].window_ratio
-      #self._idf.set_wwr(wwr, construction='window_construction_1')
+      try:
+        self._idf.set_wwr(wwr, construction='window_construction_1')
+      except ValueError:
+        self._idf.set_wwr(0, construction='window_construction_1')
 
   def _add_windows_by_vertices(self, boundary):
     raise NotImplementedError