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

https://storage.googleapis.com/metal-craftsmanship/serving-home-owners/uncategorized/breathing-easy-for-a-century-custom-made-copper-roofing-system-vents-that-keep.html

I really did not expect acoustics to matter, yet opening patterns, backing materials, and panel depths in metal ceilings tame reverberation while maintaining crisp, modern lines.