To make sure no moisture can get past the steels where they stick out of the house, we have cut back into the logs and put plenty of silicon around, before fitting these ply end plates.
These were given two coats of yatch varnish before installation and then sealed again with silicon. Then from the back we put closed cell can foam to fill up the hole in the log.
We had to make sure that it filled around the steel beam everywhere to avoid any pockets where moisture could build up.
Then a few days after that we filled from the top so that the first two feet of steel inside the house lives in a bed of foam. We hope this will do the trick.
