backface culling

Questions & Answers
1

I made a little temple(to see it go to my profile and check out my NURBS question). The roof is made of SubDs but on 1 side of it is visible on unity. I can see the top but when my player goes inside it the roof is invisible and I can see through it.

Can I fix this in unity or even better can I export it from Maya with different settings so it does not occur?

2

The optimal solution is to completely model the inside of the building as well as the outside in your modeling program. (Another option is to use a two-sided shader, but in most cases that will cause the lighting to be incorrect on one side of the surface.)