One of the newest ways to repair textured walls and ceilings is with a gravity fed manually powered pressure sprayer.
Orange peel roof.
Apply the orange peel to the ceiling keeping the gun between 3 and 4 feet away from the ceiling at all times.
Repairing orange peel texture with a hand pump sprayer series real painter spraying.
The end result is a beautiful flat ceiling.
You may need a stepladder depending upon the ceiling height.
As it is a friend s car i would like to help you solve it.
An epdm rubber roof will also take on a chalky look.
Just because a roof isn t aluminum or fiberglass don t assume its rubber.
Every texture requires a different process to get smooth ceilings.
The clear coat on the roof came with a lot of orange peel.
Vinyl is also used for the roofs of campers and rvs.
You can test for vinyl by giving a pinch to the roof.
Epdm is very smooth while tpo may be slightly bumpy similar to an orange peel.
The after sales of the brand decided to do a sanding and polishing to remove however the orange peels continue the roof is entirely scratched and now some small marks have appeared.
It s not hard but does take time and can be scary.
Keep moving the gun.
If you want to totally get rid of orange peel you need to wet sand the car.