This had the same issue but with sturges when i was trying to complete the sanctuary side quest.
Fo4 repairable sanctuary roof.
All this mod does is replace the meshes of the roofs in sanctuary from the broken post war roofs to the pre war roofs while still keeping the post war rusted textures.
Let the roof floor boards extend out beyond the house.
Build shack walls outside the house enclosing it.
Enclose the car port and enlarge.
Sanctuary s settlers don t seem to be making much progress on fixing those houses.
Try building stairs to the roof.
It also fixes an issue where houses might not register as repairable.
Sanctuary hills often referred to as sanctuary is a location and possible settlement in the commonwealth in 2287.
Or use those fundaments there is a pure wooden one and one with concrete.
Press either or to access the console then enter tcl to toggle collisions.
This mod allows you to repair sanctuary s houses using the workshop interface restoring their roof and outer walls and cleaning the interior.
If you want a job done right do it yourself.
Saw a let s play video where that worked.
Those fundaments are the only tile akaik that can sink into the ground or in this case into the damaged roof.
If you don t use patch job there will still be holes in the texture of the roof because that s how the vanilla textures were made.
If you really want to use one of the surviving houses in sanctuary hills and want to patch up the wrecked roof i ve found a pretty simple way.
Building stairs is a good fix.
It does require using the console though so pc only.
Most efficient way to repair the roofs in santuary hill is to build around the houses till you are above the roofs and then build a floor ontop of them.