[stevedawg85]

FloorPlan

So the theater room has these pillars in the corner, idk the purpose of them, but it would be ideal for a nice rack and/or AV storage. Same thing for the gameroom, it just gets in the way. If you look at the floorplan, 'A' is an electric fireplace on the first floor. I suppose there may be a gas line and electric running down there. 'B' Could be the safest one to tear apart, why does 'C' have an x?

I been in the attic quite a few times, if memory is correct, above these A & B areas, it is just drywall with nothing leading down. I'll need to take a better look next time.

1 = first floor
2 = 2nd floor

 

[BSHuff]

Until you open up that wall there is no way to tell why they are there especially from just a line drawing of the house.

Usually if the time was spent to put them in, there was a reason for them to be there. Are there any roof penetrations near those areas?

B Guessing HVAC
C May be the vent stack for the bathroom

 

[BIGmouthinDC]

My money says there is something inside otherwise they wouldn't have spent the extra nickel to build them.