To move or delete the element you must first unlock it by clicking the pushpin control.
Walls locked to roof revit.
Likewise if you unlock a previously locked wall and then try to lock it again no lock icon.
Click modify tab modify panel pin select the elements to be pinned and then press enter.
Get up and running with revit.
In the drawing area select one or more walls you want to attach to other elements.
However if you create the wall move on then come back and try to lock the wall no lock icon.
Select the elements to which the wall will attach.
On the options bar for attach wall select either top or base.
Revit lt displays a pushpin control near the element to indicate that it is pinned in place.
Http pbl stanford edu how to attach walls to roof objects in revit.
Click modify walls tab modify wall panel attach top base.
Click the pushpin again to lock the element.
In this video i show you how to attach the walls in revit to the roof above them.
See hd version of video tutorial here.
Revit introductory tutorial showing modelling of a basic house.