diff --git a/README.md b/README.md
index 89c0927..f538e99 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@ The following assumptions are taken:
 - All buildings have basement but those are not heated
 - The construction details come from nrel
 - The usage details come from comnet
+- The heated volume is 85% of the total volume, assuming that the rest is occupied by internal walls
 
 #### Dependencies
  
diff --git a/monthly_energy_balance.py b/monthly_energy_balance.py
index f9300ba..7c63351 100644
--- a/monthly_energy_balance.py
+++ b/monthly_energy_balance.py
@@ -1,5 +1,5 @@
 """
-InselMonthlyEnergyBalance exports models to insel format
+Monthly energy balance using Insel workflow
 SPDX - License - Identifier: LGPL - 3.0 - or -later
 Copyright © 2022 Concordia CERC group
 Project Coder Pilar Monsalvete Alvarez de Uribarri pilar.monsalvete@concordia.ca
@@ -23,10 +23,10 @@ class MonthlyEnergyBalance:
     for building in self._city.buildings:
       building.attic_heated = attic_heated_case
       building.basement_heated = basement_heated_case
-    self.sanity_check()
-    self.workflow()
+    self._sanity_check()
+    self._workflow()
 
-  def sanity_check(self):
+  def _sanity_check(self):
     levels_of_detail = self._city.level_of_detail
     if levels_of_detail.geometry is None:
       raise Exception(f'Level of detail of geometry not assigned')
@@ -48,7 +48,7 @@ class MonthlyEnergyBalance:
           if cte.HOUR not in surface.global_irradiance:
             raise Exception(f'Building {building.name} does not have global irradiance on surfaces assigned')
 
-  def workflow(self):
+  def _workflow(self):
     for building in self._city.buildings:
       if cte.MONTH not in building.external_temperature:
         building.external_temperature[cte.MONTH] = MonthlyValues(). \
@@ -57,7 +57,7 @@ class MonthlyEnergyBalance:
       for surface in building.surfaces:
         if surface.type != cte.GROUND:
           if cte.MONTH not in surface.global_irradiance:
-            surface.global_irradiance[cte.MONTH] = MonthlyValues().get_total_month(surface.global_irradiance[cte.HOUR])
+            surface.global_irradiance[cte.MONTH] = MonthlyValues().get_mean_values(surface.global_irradiance[cte.HOUR])
 
     tmp_path = (Path(__file__).parent / 'tmp').resolve()
     EnergyBuildingsExportsFactory('insel_monthly_energy_balance', self._city, tmp_path).export()
diff --git a/tmp/.gitignore b/tmp/.gitignore
new file mode 100644
index 0000000..86d0cb2
--- /dev/null
+++ b/tmp/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore
\ No newline at end of file
diff --git a/unittests/test_monthly_energy_balance_workflow.py b/unittests/test_monthly_energy_balance_workflow.py
index 6c3db93..5b8c2bd 100644
--- a/unittests/test_monthly_energy_balance_workflow.py
+++ b/unittests/test_monthly_energy_balance_workflow.py
@@ -81,8 +81,8 @@ class TestMonthlyEnergyBalanceWorkflow(TestCase):
 
     for building in city.buildings:
       building.year_of_construction = 2006
-      if building.function is None:
-        building.function = cte.LARGE_OFFICE
+      building.function = cte.LARGE_OFFICE
+      print(building.function)
 
     ConstructionFactory(construction_format, city).enrich()
     UsageFactory(usage_format, city).enrich()
diff --git a/unittests/tests_outputs/.gitignore b/unittests/tests_outputs/.gitignore
new file mode 100644
index 0000000..86d0cb2
--- /dev/null
+++ b/unittests/tests_outputs/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore
\ No newline at end of file