Introduction
The document discusses the Levelrock™ SRB™ Sound Reduction Board Systems, a sound control material designed to enhance Impact Insulation Class (IIC) and Sound Transmission Class (STC) levels in various construction types. It highlights the benefits of using SRB sound reduction boards over conventional sound mats, including cost efficiency, reduced profile, and weight.

Specifications
The SRB sound reduction board features a thin 3/8-inch profile and contains recycled content, potentially contributing to LEED® credits. It is water-resistant and constructed from a sound-absorbing material with higher mass compared to sound mats. When combined with LeveLrock® 2500 floor underlayment, it meets or exceeds the STC and IIC requirements of Section 1207 of the International Building Code (IBC).

Performance and Benefits
SRB sound reduction boards offer a 25% reduction in floor weight compared to conventional systems. They provide smoother floor transitions, which can reduce costs in projects where different flooring types meet. The system requires only 3/4 inch of LeveLrock floor underlayment to achieve a 50 STC and 50 IIC, compared to the 1-inch minimum for sound mats.

Transition Solutions
Two transition solutions are provided for areas requiring sound control transitioning to areas that do not. Transition 1 involves adjusting the floor underlayment to match the height of the sound control assembly. Transition 2 offers a gradual slope from 1-1/8 inches to 3/4 inches over a 3-foot area, maintaining code compliance for fire and sound.

UL-Rated Assemblies
The document lists UL-rated assemblies for SRB sound reduction board systems, tested in various joist assemblies. The systems achieve sound ratings that meet or exceed IBC requirements, with specific STC and IIC values provided for different finishes like sheet vinyl, ceramic tile, and engineered wood laminate.

Additional Information
For more details, the document refers to levelrock.com and usgdesignstudio.com. It includes safety guidelines, technical service contacts, and customer service information.

Disclaimer
The document includes a liability disclaimer, emphasizing adherence to printed instructions and intended use, with a 30-day claim period for defective goods.