No. But what I would suggest is that you copy them to a safe place (i.e. make a back-up). Also, if you are reinstalling the same version, make a back-up of normal.dot which contains your basic document defaults and any other macros that you want.
After the install, copy these back into the templates directory and they should automatically point to your original documents.
If you haven't changed the location of all the documents from the default, the new installation will find them anyway.