It looks like it came from some form of pest, but there are no obvious holes or material above it. It's between glass and a screen with no obvious openings or holes. None of my other windows have it. We did have the house re-insulated recently, but I don't think it looked like this. Any help identifying what's going on?

I'm geographically located in Northern NJ I'm the US in the suburbs.

you are viewing a single comment's thread
view the rest of the comments
[–] [S] 1 point 1 year ago (1 child)

It does look like foam to me.

  • source
  • parent
  • hideshow 2 child comments
  • [–] 1 point 1 year ago

    Opps sorry for late reply.

    Yah if its foam then something is digging it out.

    Those piles look like what ants pile up outside their nest, and I have seen fire ants do this several times in the past. Hope you figure it out!

  • source
  • parent