http://ift.tt/2vmXuZ7 was removing the floorboards for a project and found this wedged against the corner under the bay windows of the house. If I touch it, it crumbles very easily, comparable to dried leaves.Is this a building material? Any idea what the purpose could be - so I don't remove something that is important?EDIT: Yeah great, was hoping you wouldn't say that. The floor hasn't been lifted for at least 20 years and I haven't noticed any wasps outside the house recently. Its probably disused so it shouldn't be a big problem.Thanks for your help via /r/DIY http://ift.tt/2wNcyCK
