I didn't expect acoustics to matter, yet perforation patterns, backing materials

https://elliotmwmx786.huicopper.com/what-takes-place-after-100-winters-copper-chimney-shadows-by-salvo-metal-works

I didn't anticipate acoustics to matter, yet perforation patterns, backing materials, and panel depths in steel ceilings tame echo while maintaining crisp, modern-day lines.