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Levelrock® Brand SRB™ Sound Reduction Board

Economical, water-resistant sound reduction panel with a smooth, coated finish.



Economical, high-performance sound reduction board that helps meet 50 IIC/50 STC. Levelrock® Brand SRB™ Sound Reduction Board provides excellent sound control in all types of construction while lowering the cost, profile and weight of the underlayment sound system.

Main Features

Levelrock® Brand SRB™ Sound Reduction Boards thin 3/8-in. profile, when topped with 3/4-in. Levelrock® Brand Floor Underlayment, minimizes transition height changes between rooms. Choose from three wood frame sound- and fire-rated systems — each tested in a laboratory environment per ASTM E90 for Air-borne sound (STC) and ASTM E492 for Structure-borne sound (IIC) per Section 1207 of the International Building Code. Levelrock® Brand SRB™ Sound Reduction Board:

  • Is water-resistant
  • Requires only 3/4-in. of Levelrock® Brand Floor Underlayment to achieve comparable sound performance to sound mat systems
  • Contains nearly 50% recycled content, which may assist in obtaining LEED® credits
  • Is engineered and manufactured by USG.


  • Administrative Offices
  • Classrooms
  • Corridors and Hallways
  • Dormitories
  • Executive Areas, Conference Areas and Board Rooms
  • Guest Rooms and Suites
  • Lobbies and Reception Areas
  • Media Centers, Music Rooms and Libraries
  • Multi-Family Residential and Condos
  • Open Plan Offices
  • Single-Family Residential
  • Theatres
  • Traditional Offices


Submittal Sheet


  • GREENGUARD Certification Yes

Physical Data

  • Substrate Type Wood, Concrete, Corrugated Steel Deck, Structural Panels
  • Sound Mat/Board Thickness 3/8 in. (10 mm)
  • Min. Underlayment Thickness 3/4 in. (19 mm)


Installation Guide PDF 735.8 KB


Project Profile Video featuring Levelrock® Brand Sound Reduction Board - CLT Residence Hall

Documents & Files

Data Sheets & Specifications

Data/Submittal Sheet (English)

Catalogs & Brochures

Brochure (English)

Project Profiles

Project Profiles (English) PDF 9.9 MB

Installation & Technical Manuals

Technical Guide (English) PDF 418.3 KB
Installation Guide (English) PDF 735.8 KB

SDS, Certifications & Reports

SDS (English) PDF 243.0 KB
SDS (Spanish) PDF 245.5 KB


EPD (English) PDF 512.9 KB

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