diff --git a/honeybee_display/cli/__init__.py b/honeybee_display/cli/__init__.py
index 23934c3..de0b95b 100644
--- a/honeybee_display/cli/__init__.py
+++ b/honeybee_display/cli/__init__.py
@@ -148,7 +148,7 @@ def model_to_vis_set_cli(
         text_labels = not color_attr
         show_grid = not hide_grid
 
-        # pass the input to the function in order to convert the 
+        # pass the input to the function in order to convert the model to a visualization
         model_to_vis_set(model_file, color_by, exclude_wireframe, faces, hide_color_by,
                          room_attrs, face_attrs, text_labels, grid_display_mode,
                          show_grid, grid_data, grid_data_display_mode, active_grid_data,
diff --git a/honeybee_display/model.py b/honeybee_display/model.py
index 2c55d69..c9c8950 100644
--- a/honeybee_display/model.py
+++ b/honeybee_display/model.py
@@ -286,7 +286,7 @@ def model_to_vis_set(
                     f_faces = [
                         face for face in faces
                         if isinstance(face, face_attr_types) or
-                        isinstance(face.type, face_attr_types)
+                        (hasattr(face, 'type') and isinstance(face.type, face_attr_types))
                     ]
                 else:
                     f_faces = faces
@@ -296,7 +296,8 @@ def model_to_vis_set(
                     f_faces = [
                         face for face in f_faces if
                         isinstance(face, Shade) or
-                        isinstance(face.boundary_condition, bcs)
+                        (hasattr(face, 'boundary_condition') and
+                         isinstance(face.boundary_condition, bcs))
                     ]
 
                 if not f_faces: