diff --git a/.idea/Model.iml b/.idea/Model.iml
index 4413bb06..b0f9c00d 100644
--- a/.idea/Model.iml
+++ b/.idea/Model.iml
@@ -7,7 +7,7 @@
       <sourceFolder url="file://$MODULE_DIR$/open_uprn" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/recommendations" isTestSource="false" />
     </content>
-    <orderEntry type="jdk" jdkName="Python 3.10 (backend)" jdkType="Python SDK" />
+    <orderEntry type="jdk" jdkName="Python 3.10 (model_data)" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
   <component name="PyNamespacePackagesService">
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 6f308057..1122b380 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -3,7 +3,7 @@
   <component name="Black">
     <option name="sdkName" value="Python 3.10 (backend)" />
   </component>
-  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.10 (backend)" project-jdk-type="Python SDK" />
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.10 (model_data)" project-jdk-type="Python SDK" />
   <component name="PythonCompatibilityInspectionAdvertiser">
     <option name="version" value="3" />
   </component>
diff --git a/recommendations/tests/test_window_recommendations.py b/recommendations/tests/test_window_recommendations.py
index 359dd962..ac461594 100644
--- a/recommendations/tests/test_window_recommendations.py
+++ b/recommendations/tests/test_window_recommendations.py
@@ -40,7 +40,7 @@ class TestWindowRecommendations:
              'starting_u_value': None, 'new_u_value': None, 'sap_points': None, 'total': 5721.943248,
              'subtotal': 4768.28604, 'vat': 953.6572080000001, 'contingency': 340.59186, 'preliminaries': 340.59186,
              'material': 1275.75, 'profit': 681.18372, 'labour_hours': 45.5, 'labour_cost': 994.8624,
-             'labour_days': 2.84375}]
+             'labour_days': 2.84375, 'is_secondary_glazing': False}]
 
     def test_partial_double_glazed(self):
         """
@@ -75,7 +75,7 @@ class TestWindowRecommendations:
              'starting_u_value': None, 'new_u_value': None, 'sap_points': None, 'total': 4087.10232,
              'subtotal': 3405.9186, 'vat': 681.18372, 'contingency': 243.2799, 'preliminaries': 243.2799,
              'material': 911.25, 'profit': 486.5598, 'labour_hours': 32.5, 'labour_cost': 710.6160000000001,
-             'labour_days': 2.03125}]
+             'labour_days': 2.03125, 'is_secondary_glazing': False}]
 
     def test_fully_double_glazed(self):
         """
@@ -158,7 +158,7 @@ class TestWindowRecommendations:
              'starting_u_value': None, 'new_u_value': None, 'sap_points': None, 'total': 1089.893952,
              'subtotal': 908.24496, 'vat': 181.64899200000002, 'contingency': 64.87464, 'preliminaries': 64.87464,
              'material': 729.0, 'profit': 129.74928, 'labour_hours': 13.0, 'labour_cost': 568.4928,
-             'labour_days': 0.8125}]
+             'labour_days': 0.8125, 'is_secondary_glazing': True}]
 
     def test_single_glazed_restricted_measures(self):
         property_6 = Property(
@@ -192,7 +192,7 @@ class TestWindowRecommendations:
              'total': 1907.314416, 'subtotal': 1589.42868, 'vat': 317.885736,
              'contingency': 113.53062, 'preliminaries': 113.53062,
              'material': 1275.75, 'profit': 227.06124, 'labour_hours': 22.75,
-             'labour_cost': 994.8624, 'labour_days': 1.421875}
+             'labour_cost': 994.8624, 'labour_days': 1.421875, 'is_secondary_glazing': True}
         ]
 
     def test_full_triple_glazed(self):
@@ -250,4 +250,4 @@ class TestWindowRecommendations:
              'starting_u_value': None, 'new_u_value': None, 'sap_points': None, 'total': 1634.840928,
              'subtotal': 1362.36744, 'vat': 272.47348800000003, 'contingency': 97.31196, 'preliminaries': 97.31196,
              'material': 364.5, 'profit': 194.62392, 'labour_hours': 13.0, 'labour_cost': 284.2464,
-             'labour_days': 0.8125}]
+             'labour_days': 0.8125, 'is_secondary_glazing': False}]