Originally Posted by GBR in WA
My eyes aren't what they used to be but it appears on the board edge also, in the first photo...did you just remove that missing chunk?
It was removed moments before the picture was taken, and you're correct that it's also on the board edge. After closer inspection the dots appear to be solid and of a slightly different material. Maybe some sort of fire retardant although it's very random and some of the sheets have very little of it. Areas of the basement that show absolutely no signs of moisture also had the same random green dots in the rigid foam. Strange
Everything below and just above grade has been removed down to the studs, upper floor joists, and concrete slab. There have been a few surprises but I think I'm in pretty decent shape. Took possession of the house 2 months ago (my first home) and we're still on budget. It was built in 1965 and I was certainly very curious to see behind the walls, etc. I'm about to post one of my issues soon over in Concrete, Stone & Masonry.
Thanks everyone for the comments.