hiding a house when the player is inside?

I've been working on a game where you can walk into a small house. The problem is, when you get inside the house and spin the camera (which is locked behind the player ala 3rd person) swings outside of the house and you can't see anything. Any ideas, flags, or whatnot to fix this?

Thanks!

Either use a trace to move the camera closer to the player,
or make the roof disappear (roof as seperate model)