mcyeadon

Hoping someone can help me with this... Working on renovation plans for a two-storey house with a 1 storey addition. When I remove the ceiling in the one-storey addition to create a vaulted ceiling, the exterior cladding from the two storey main house shows through in the room. Is there any way to prevent this from happening so the room shows the interior wall going up to the underside of the ceiling? Thanks, Marina