Masonry Construction Techniques
I first noticed it on a Hopkins townhome I sold this Summer.
Then I noticed it — in all places — at a Costco gas station.
“It” was what looked like a piece of rope (actually, several of them) protruding from the masonry (and no, it’s not really visible in the photo at right).
The “rope” serves as a wick that dissipates any accumulated moisture in the walls.