Do this in game using the half hipped roof.
How to make roof in sims 4.
In the sims 4 we are only able to create diagonal walls on one angle a perfect 45 degrees.
If you like a more classic second empire look to your home you can try building a mansard roof.
This means therefore that these roofs will not sit perfectly atop your builds.
These patterns work in exactly the same way as the existing roof recolours in game.
Add a half hipped roof along one edge.
Quik tutorial how to make a flatroof in the sims 4 as for now you cant use the cheat constrainfloorelevation false like in the sims 3.
Weather does not af.
This also means however that you cannot place the design on anything other than a roof.
Repeat on all four edges.
Making a glass roof is as simple as selecting the swatch in the build catalogue and clicking on the roof you want to change.
Adjust it to be flush against the wall of the room and pull it up to the same height.
Line up a half hipped roof against the wall and adjust the length and height.
In order to create a roof piece that has 5 or 6 sides the angle of the sides cannot be 45 degrees.
Build a smaller room on the roof about one or two squares from the edge of the building.