Georgia-Pacific has announced its Sound Remediation Assembly that consists of a high-mass layer of DensDeck roof board and 1-inch-minimum porous fiberglass or fiber insulation board (non-batt), which serves as a ventilation layer. The assembly can be installed over an existing roof system. When applied to a typical metal roof deck system, independent testing discovered noise level was reduced by more than half. The Sound Remediation Assembly also improves R-value in existing roof systems.
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