Sketchup flip faces

flip faces

— if flipping faces is a pain, sometimes you can select a face in an

 

object that is correct way round and Rclick, select 'orient faces' which
will fix wrong ones.
Also to see which faces are flipped - if they have been textured - go into
Styles, select Edit, choose 'face settings' (second button looks like brown
box) then choose style and pick the blue and white box. its also possible
to edit the back colour to make it more standouty -eg red