diff --git a/hub/city_model_structure/life_cycle_assessment/access_nrcan_catalogue.py b/hub/city_model_structure/life_cycle_assessment/access_nrcan_catalogue.py
index 0fc76705..a04c2fd2 100644
--- a/hub/city_model_structure/life_cycle_assessment/access_nrcan_catalogue.py
+++ b/hub/city_model_structure/life_cycle_assessment/access_nrcan_catalogue.py
@@ -102,9 +102,10 @@ class AccessNrcanCatalog:
       elif opaque_surface[opaque_surface_key]['type'] == component_type:
         return opaque_surface[opaque_surface_key]['layers']
 
-  @staticmethod
-  def nrcan_windows_skylight(opaque_surface_code):
-    return self.constructions['transparent_surfaces'][0][window_code]
+  def search_transparent_surfaces(
+          self, surface_type, opaque_surface_code, climate_zone):
+    return self.transparent_surfaces[
+      f'{surface_type}_{opaque_surface_code}_{climate_zone}']
 
   def find_opaque_surface(self, function, period_of_construction, climate_zone):
     """Returns the opaque_surface_name corresponding to the given arguments."""