Up to STC 55 dB (ASTM E90), equivalently Rw 50–55 dB (ISO 717-1) by construction variant. Quote STC for US projects and Rw (ISO 717-1) for international ones — the two are not interchangeable.
FAQOct 16, 20262 views
What acoustic rating can NEUWALL operable walls achieve?
Up to STC 55 dB (ASTM E90), equivalently Rw 50–55 dB (ISO 717-1) by construction variant. Quote STC for US projects and Rw (ISO 717-1) for international ones — the two are not interchangeable.
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