We recently bought an older house, which has a back room added-on. The internal walls and ceiling are made of thin sheet material, and we’re planning to paint them white for a cleaner look.
What’s the best way to fill or even out the grooves between the sheets? (See attached photo.)
After filling, I was planning to use a primer undercoat followed by an interior white paint. Any recommendations or general advice would be greatly appreciated. This is just a temporary aesthetic fix—as we plan to properly rebuild the room in future—so I’m looking for a cost-effective and simple solution for now.
Thank you
