


Hi . We bought the house and in the windows there is a very sticky rough material that is all dirty and black. I’m assuming it’s silicone or some sort of sealer but I’m not sure. It is in the corner so maybe was there to glue things together or maybe prevent from water to come in, even though I didn’t see any issue as such. Any idea what is the material or how can I clean it/remove /replace it? It’s in all the windows in the house. Thanks