Spray Foam Insulation at top chord of truss roof

What assembly do i pick if the client wants to just use spray foam insulation at the top chord of the truss for the roof of the house? (R-38). Since the foam would need to be at least 10 1/2″ thick it will bury the top chord of the roof encapsulating it in the insulation. trying to pick the correct assembly for it.

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[EnergysoftKeymaster]

You will note there is a checkbox on the editor to account for this circumstance.  Insulation covers framing at underside of roof deck.

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