'Infill' is actually window units - everywhere (hundreds of them). The window frames & units are well thought out = air seal just in board of inner trim, sloped sill and flashed OK.
End grain wicking. The objective is to prevent rot, period. That happens with equil moisture content (EMC) at or above 20-25%, i.e. when water sits for quite a while. I'm wondering how the joint will deal with water after a moisture event (storm against side of building). Assume the exterior gets soaked - water then wicks thru the tight joint into the interface area. Storm ends, now what? Does water sit and start rot or does it migrate. I want it to go away and migration thru wood is OK because the moisture event won't happen often. To prevent massive end grain checks I want to slow down end grain response time to make it match the face grain response. Basically that means an end grain sealer like the common Anchorseal.
I don't see how epoxy on the ends would help anything, but it certainly makes processing a pain in the patooty.
