Update main.py

main.py

@@ -35,7 +35,7 @@ from app.building_energy import display_building_energy_page
 from app.renewable_energy import display_renewable_energy_page
 from app.embodied_energy import display_embodied_energy_page
 from app.materials_cost import display_materials_cost_page
-from app.m_c_data import SAMPLE_MATERIALS, SAMPLE_FENESTRATIONS, DEFAULT_MATERIAL_PROPERTIES, DEFAULT_WINDOW_PROPERTIES, DEFAULT_CONSTRUCTIONS
+from app.m_c_data import SAMPLE_MATERIALS, SAMPLE_FENESTRATIONS, DEFAULT_MATERIAL_PROPERTIES, DEFAULT_WINDOW_PROPERTIES, SAMPLE_CONSTRUCTIONS
 
 class BuildSustain:
     """
@@ -96,7 +96,7 @@ class BuildSustain:
                     "project": {}
                 },
                 "constructions": {
-                    "library": dict(DEFAULT_CONSTRUCTIONS),
+                    "library": dict(SAMPLE_CONSTRUCTIONS),
                     "project": {}
                 },
                 "components": {