diff --git a/city_model_structure/facilities.py b/city_model_structure/facilities.py
index 629a2dc1..aff575c6 100644
--- a/city_model_structure/facilities.py
+++ b/city_model_structure/facilities.py
@@ -10,14 +10,18 @@ class facilities:
   facilities class
   """
 
-  def __init__(self, operation_schedules, heat_dissipation, lighting_facilities_electric_power):
+  def __init__(self, operation_schedules, convective_fraction, latent_fraction,
+               radiant_fraction, total_value_of_heat_dissipation):
     """
     Constructor
     """
 
     self._operation_schedules = operation_schedules
-    self._heat_dissipation = heat_dissipation
-    self._lighting_facilities_electric_power = lighting_facilities_electric_power
+    self._convective_fraction = convective_fraction
+    self._latent_fraction = latent_fraction
+    self._radiant_fraction = radiant_fraction
+    self._total_value_of_heat_dissipation = total_value_of_heat_dissipation
+
 
 
   @property
@@ -29,18 +33,33 @@ class facilities:
     return self._operation_schedules
 
    @property
-  def heat_dissipation(self):
+  def convective_fraction(self):
       """
-      Get heat dissipation
-      :return: heat dissipation
+      Get convective fraction value
+      :return: convective fraction
       """
-      return self._heat_dissipation
+      return self._convective_fraction
 
   @property
-  def lighting_facilities_electric_power(self):
+  def latent_fraction(self):
       """
-      Get electric power of the lightings
-      :return: lighting electric power
+      Get latent fraction value
+      :return: latent fraction
       """
-      return self._lighting_facilities_electric_power
+      return self._latent_fraction
 
+  @property
+  def radiant_fraction(self):
+      """
+      Get radiant fraction value
+      :return: radiant fraction
+      """
+      return self._radiant_fraction
+
+  @property
+  def total_value_of_heat_dissipation(self):
+      """
+      Get heat dissipation value
+      :return: heat dissipation
+      """
+      return self._total_value_of_heat_dissipation
\ No newline at end of file
diff --git a/city_model_structure/hvac_facilities.py b/city_model_structure/hvac_facilities.py
new file mode 100644
index 00000000..f4631daf
--- /dev/null
+++ b/city_model_structure/hvac_facilities.py
@@ -0,0 +1,36 @@
+"""
+Building module
+SPDX - License - Identifier: LGPL - 3.0 - or -later
+Copyright © 2020 Project Author Sanam Dabirian sanam.dabirian@mail.concordia.ca
+"""
+
+
+class hvac_facilities:
+  """
+  HVAC facilities class
+  """
+
+  def __init__(self, temperature_setpoints, hvac_schedules):
+    """
+    Constructor
+    """
+
+    self._temperature_setpoints = temperature_setpoints
+    self._hvac_schedules = hvac_schedules
+
+  @property
+  def temperature_setpoints(self):
+    """
+    Get temperature setpoints
+    :return: temperature setpoints
+    """
+    return self._temperature_setpoints
+
+  @property
+  def hvac_schedules(self):
+      """
+      Get HVAC schedules
+      :return: HVAC schedules
+      """
+      return self._hvac_schedules
+