diff --git a/src/Mod/Arch/ArchCommands.py b/src/Mod/Arch/ArchCommands.py
index 59b570483..d119870f7 100644
--- a/src/Mod/Arch/ArchCommands.py
+++ b/src/Mod/Arch/ArchCommands.py
@@ -772,6 +772,13 @@ def getIfcBrepFacesData(obj,scale=1,sub=False,tessellation=1):
         return sols
     return None
     
+def getIfcElevation(obj):
+    """getIfcElevation(obj): Returns the lowest height (Z coordinate) of this object"""
+    if obj.isDerivedFrom("Part::Feature"):
+        b = obj.Shape.BoundBox
+        return b.ZMin
+    return 0
+    
 def getHost(obj,strict=True):
     """getHost(obj,[strict]): returns the host of the current object. If strict is true (default),
     the host can only be an object of a higher level than the given one, or in other words, if a wall
diff --git a/src/Mod/Arch/ifcWriter.py b/src/Mod/Arch/ifcWriter.py
index 88f64685f..b45b413ba 100644
--- a/src/Mod/Arch/ifcWriter.py
+++ b/src/Mod/Arch/ifcWriter.py
@@ -467,6 +467,7 @@ class IfcDocument(object):
     def addProduct(self,elttype,shapes,storey=None,placement=None,name="Unnamed element",description=None,extra=None):
         """addProduct(elttype,representations,[storey,placement,name,description,extra]): creates an element of the given type
         (IfcWall, IfcBeam, etc...) with the given attributes, plus the given extra attributes."""
+        elttype = str(elttype)
         if not extra:
             extra = []
         if not description:
diff --git a/src/Mod/Arch/importIFC.py b/src/Mod/Arch/importIFC.py
index 4910fdb73..3d215e78f 100644
--- a/src/Mod/Arch/importIFC.py
+++ b/src/Mod/Arch/importIFC.py
@@ -41,7 +41,7 @@ supportedIfcTypes = ["IfcSite", "IfcBuilding", "IfcBuildingStorey", "IfcBeam", "
                      "IfcChimney", "IfcColumn", "IfcColumnStandardCase", "IfcCovering", "IfcCurtainWall",
                      "IfcDoor", "IfcDoorStandardCase", "IfcMember", "IfcMemberStandardCase", "IfcPlate",
                      "IfcPlateStandardCase", "IfcRailing", "IfcRamp", "IfcRampFlight", "IfcRoof",
-                     "IfcSlab", "IfcStair", "IfcStairFlight", "IfcWall",
+                     "IfcSlab", "IfcStair", "IfcStairFlight", "IfcWall","IfcSpace",
                      "IfcWallStandardCase", "IfcWindow", "IfcWindowStandardCase", "IfcBuildingElementProxy",
                      "IfcPile", "IfcFooting", "IfcReinforcingBar", "IfcTendon"]
 # TODO : shading device not supported?
@@ -996,7 +996,7 @@ def export(exportList,filename):
         elif ifctype == "Rebar":
             ifctype = "ReinforcingBar"
 
-        if DEBUG: print "adding " + obj.Label + " as Ifc" + ifctype
+        if DEBUG: print "Adding " + obj.Label + " as Ifc" + ifctype
                  
         # writing IFC data 
         if obj.isDerivedFrom("App::DocumentObjectGroup"):
@@ -1006,13 +1006,13 @@ def export(exportList,filename):
                 parent = ifc.findByName("IfcBuilding",str(parent.Label))
 
             if otype == "Site":
-                pass # TODO manage sites
+                print "   Skipping (not implemented yet)" # TODO manage sites
             elif otype == "Building":
                 ifc.addBuilding( name=name )
             elif otype == "Floor":
                 ifc.addStorey( building=parent, name=name )
             else:
-                print "   Skipping (not implemented yet)"
+                print "   Skipping (not implemented yet)" # TODO manage groups
 
         elif obj.isDerivedFrom("Part::Feature"):
 
@@ -1033,7 +1033,7 @@ def export(exportList,filename):
                 #if DEBUG: print "   brep data for ",obj.Label," : ",fdata
                 if not fdata:
                     if obj.isDerivedFrom("Part::Feature"):
-                        print "IFC export: error retrieving the shape of object ", obj.Name
+                        print "   Error retrieving the shape of object ", obj.Label
                         continue
                     else:
                         if DEBUG: print "   No geometry"
@@ -1070,11 +1070,15 @@ def export(exportList,filename):
                     extra = ["NOTDEFINED"]
             elif otype == "Window":
                 extra = [obj.Width.Value*scaling, obj.Height.Value*scaling]
+            elif otype == "Space":
+                extra = ["ELEMENT","INTERNAL",Arch.getIfcElevation(obj)]
             if not ifctype in supportedIfcTypes:
-                if DEBUG: print "   Type ",ifctype," is not supported by the current version of IfcOpenShell. Exporting as IfcBuildingElementProxy instead"
+                if DEBUG: print "   Type ",ifctype," is not supported yet. Exporting as IfcBuildingElementProxy instead"
                 ifctype = "IfcBuildingElementProxy"
                 extra = ["ELEMENT"]
-            p = ifc.addProduct( ifctype, representation, storey=parent, placement=placement, name=name, description=descr, extra=extra )
+                
+            if representation:
+                p = ifc.addProduct( ifctype, representation, storey=parent, placement=placement, name=name, description=descr, extra=extra )
 
             if p:
 
@@ -1123,7 +1127,7 @@ def export(exportList,filename):
     FreeCAD.ActiveDocument.recompute()
     
     if unprocessed:
-        print "Some objects were not exported. See importIFC.unprocessed"
+        print "WARNING: Some objects were not exported. See importIFC.unprocessed"
 
 
 def explore(filename=None):