Every couple of bricks there's this corrugated plastic spacer (like plastic cardboard) between the bricks. It's just in one line of bricks, but all along the wall. What's it for? Why is it there?
(Second line down to the right in the photo)
Every couple of bricks there's this corrugated plastic spacer (like plastic cardboard) between the bricks. It's just in one line of bricks, but all along the wall. What's it for? Why is it there?
(Second line down to the right in the photo)
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