Oobleck
When I was a child, my father would tell me a story. It was much like the tale of King Midas but everything this king touched turned to a black sticky substance called “oobleck.” For some reason, I grew up thinking it was a traditional Inuit story, but I think the original version might actually have been written by Dr. Seuss!
At any rate, the fellows from Fraser Damp Proofing have coated the Under Hill’s roof in something remarkably like oobleck!