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  • Frost damage usually, blows the front of the brick off because it's porous and freezes. You can cut that brick out and patch a good brick in, it would be unusual for it to be covered in that kind of problem. I suppose it's not double brick though. Not picking at the intention, I'm sure you've weighed it up.

  • It looks like it's been patched pretty heavily in the past, there's definitely some movement that's gone on too. I'm planning to do a green roof so wouldn't trust it to hold the extra weight / not fall over and crush someone.

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