Hi Andrew,
Can I place windows in a canted wall? I want to place louvres in but every time I do it the window sits out side the wall
Not unless you've made a window of your own and rotated it in the 3D script to follow the angel of your wall ...
A canted wall (if it's the command used under "Extras") can only exist together with a straight wall, and if a window is placed in it - the window will autom. place itself in the straight wall.
If you've used the roof tool to the get your cantered wall you'll either have to cut a whole and manually (with the help of the roof tool again) make the window frame, glass pane and so on...
or, you could try to use the roof windows (that is if you've used the roof tool for the cantered wall) and adjust their param's ...