Don,
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then in my opinion it is not acessible, because it is "permanently closed in by the structure or finish of the building".
here lies the problem, opinions, and mine is the opposite.

I don't agree that a screw or a panel with a finger pull substantiates "permanently closed in by the structure or finish of the building" even if it takes some serious hunting.

If it were necessary to damage the finish or membrane when removed, then I am definitely in agreement, but since this is not the case, I guess we will just have to agree to disagree. [Linked Image]

Roger