Noise reduction relies upon on glass thickness and air area design, no longer just body materials

https://eggplant-shoe-e28.notion.site/The-Solar-Heat-Gain-Coefficient-helps-estimate-how-much-solar-energy-enters-through-the-glazing-3afc0d147e4f8042a422fc694df35370

Noise relief relies on glass thickness and air area design, no longer simply frame subject material. Staggered glass and enhanced seals can raise sound relief.