Muck fillet would speed the rot .
lead is placed in slot cut 100mm up from base around post and run out over entire base slab . No water can enter .
Was thinking marine mastic muck or lead mate to keep fox happy , needs to be dry though , is a summer job probably be gone by then , back to silver . Or hairdryer needs be dry or wont seal .Cannot see end grain - this it sits on a 2mm bead of sealant which sits on the stone. That sealants isn’t stopping the water ingress.
Not sure if the muck would really seal - would there be a gap between wood and muck as the wood expands etc
Slot would be sealed .With respect but that is not a good idea. Cutting a slot exposes end grain in the slot.
In 1980 we DIY built a Walter Segal timber frame ( post and beam ) house. The design is that the posts ( Douglas Fir and Oregon Pine ) stand on lead sheet on the paving slab. 38 years later ( and 4 floods ) the posts show no signs of deterioration due to water.
View attachment 153646
The photo was taken before the excess lead was trimmed.
Slot cut upwards at 45degrees , silicon and push lead up into it , will need skill so not really diy, job for pro.I like the idea of the slot - what would I use? Lead? Won’t look great? And what sealant would I use?