System Information
Operating system and graphics card
Antergos (Arch-Linux)
AMD HD 7970

Blender Version
Broken: 2.79b (previous version not tested)

The normal of some faces is reversed

How to reproduce the problem:
Shift+A -> Mesh -> Archimesh -> Add Rail Window
(Backface culling)

I attach screenshots:

Greetings Masterblop