Created Objects - Breaking vs. Destroying

[LindaPeterson]

I know it takes three degrees of failure on a Toughness check to destroy an object.

I was wondering about the "breaking" part, i.e. when you get two degrees of failure on the Toughness check. Say you create a wall, and it gets damaged, but not destroyed. What are the effects going forward? It obviously shouldn't be as effective at blocking attacks, but it's not destroyed, so do you give a bonus of some kind to future attacks? I don't think the Toughness would change, but thematically it does. so how do you translate that into game mechanics?

[FuzzyBoots]

Maybe the level of Cover changes? Complete cover versus Total. Partial Cover versus Complete.