Board Thread:False Info and Speculative Discussion/@comment-190.26.230.143-20140813002608/@comment-25212508-20140813005358

could be because the doors were open .... perhaps like with electicity when there is not a full circut the electricity(power of the mountian ash) will not flow ... that is what my guess is

or because there was no will to keep them out .. like the vet office had that wall made of mountian ash but Scott had no problems getting in or out of there dispite being a supernatural... because there was no will to keep him out