Moisture barrier behind brick

[rickgarcia76]

Water was at least 36" high. Foil is on both sides of the board.

[b.latiolais]

Like I said, I'd just dry it out and treat it with Biocide. Based on the background pictures, it doesn't appear the brick ties are connected to this sheathing. They are more than likely in the studs.

Put some good fans on it from the inside and some dehumidifiers if you can find some. If not, try to run your ac really low but make sure you turn the fan switch to "ON", not auto. You want the fan on the ac system to remain on all the time even if the compressor is not on and cooling. Otherwise, any ductboard you have in your return or plenum could get saturated with water that the ac system is pulling from inside the house.

[MisterSanders]

gypsum and wood will have to be replaced!