Block like that is a pretty sorry excuse for a weather sheild. On a really tall surface like that with no overhang protection i would expect it to absorb water like a fiend.

Of cousres it can also be coming in a specific place as suggested by the stone seller.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.