I didn't anticipate acoustics to matter, yet perforation patterns, backing products

https://archerleun094.iamarrows.com/dormer-layout-for-100-years-copper-that-doesn-t-lie-to-designers-or-proprietors

I didn't expect acoustics to matter, yet perforation patterns, backing products, and panel midsts in steel ceilings tame echo while keeping crisp, modern-day lines.