diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
new file mode 100644
index 00000000..03d9549e
--- /dev/null
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="Eslint" enabled="true" level="WARNING" enabled_by_default="true" />
+  </profile>
+</component>
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/profiles_settings.xml b/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 00000000..105ce2da
--- /dev/null
+++ b/.idea/inspectionProfiles/profiles_settings.xml
@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 00000000..ef318927
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.9 (hub)" project-jdk-type="Python SDK" />
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 00000000..8d1428ff
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/hub.iml" filepath="$PROJECT_DIR$/.idea/hub.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 00000000..35eb1ddf
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/hub/exports/building_energy/idf.py b/hub/exports/building_energy/idf.py
index 3aa95d95..7fb866a6 100644
--- a/hub/exports/building_energy/idf.py
+++ b/hub/exports/building_energy/idf.py
@@ -39,6 +39,7 @@ class Idf:
   _WINDOW_MATERIAL_SIMPLE = 'WINDOWMATERIAL:SIMPLEGLAZINGSYSTEM'
   _ROUGHNESS = 'MediumRough'
   _INFILTRATION = 'ZONEINFILTRATION:DESIGNFLOWRATE'
+  _VENTILATION = 'ZONEVENTILATION:DESIGNFLOWRATE'
 
   _HOURLY_SCHEDULE = 'SCHEDULE:DAY:HOURLY'
   _COMPACT_SCHEDULE = 'SCHEDULE:COMPACT'
@@ -415,6 +416,21 @@ class Idf:
                            Design_Flow_Rate_Calculation_Method='AirChanges/Hour',
                            Air_Changes_per_Hour=thermal_zone.infiltration_rate_system_off
                            )
+  def _add_ventilation(self, thermal_zone, zone_name):
+    # for zone in self._idf.idfobjects["ZONE"]:
+    #  if zone.Name == f'{zone_name}_infiltration':
+    #    return
+    schedule = f'Ventilation schedules {thermal_zone.usage_name}'
+    # if schedule not in self._idf.idfobjects[self._HOURLY_SCHEDULE]:
+    #  return
+    # todo: revise ventilation with Pilar
+    self._idf.newidfobject(self._VENTILATION,
+                           Name=f'{zone_name}_ventilation',
+                           Zone_or_ZoneList_Name=zone_name,
+                           Schedule_Name=schedule,
+                           Design_Flow_Rate_Calculation_Method='Flow/Zone',
+                           Flow_Rate_per_Zone_Floor_Area=thermal_zone.infiltration_rate_system_off
+                           )
 
   def _add_dhw(self, building, thermal_zone, zone_name):
     peak_flow_rate = thermal_zone.domestic_hot_water.peak_flow * thermal_zone.total_floor_area