If you want the finish to be continuous then you need to make it stronger than the other core materials.
The strongest material will cut the weaker ones.
The more skins you have the more complicated it gets.
I am finding that it can be beneficial to have two strengths for each Building Material.
i.e. duplicate them and make one strong and one weak.
This is useful when you have the same finish inside and outside - make the inside one weak so it does not cut through the other skins and the outside one strong so it does cut the other skins.
Also if you have a cavity in your wall construction make that the strongest of all if you want that cavity to always be continuous so it does not get cut by other Building Materials.
Barry.
One of the forum moderators.
Versions 6.5 to 27
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