Make sure you create a 'Surface' schedule - not an element or component schedule.
Then you will see fields for 'Surfaces'.
If you want to schedule a particular surface then you can add that as a criteria.
If you don't do that you will get all the surfaces of the wall.
You need to make sure the inside, outside and end surfaces of your walls are all set correctly.
If you are not overriding the surfaces of your walls then you need to make sure your composites are all using the correct building materials.
Barry.
One of the forum moderators.
Versions 6.5 to 27
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11