[TowerTalk] Tower Legs in Concrete

[rfman45]

 I'm installing some Rohn 45 with base being a half section in concrete. I see that there has been a TT discussion of whether to coat the legs of the buried section where they exit the concrete on top with some sort of coating. One poster stated that Rohn recommended this but I cannot find any reference to it. Can anyone clarify if this is necessary and if so, how should the legs be coated at the exit point? As always, thank you one and all for your generosity in sharing your knowledge.                                       Mike  W2LO