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QuietBrace® Sound-Deadening Structural Sheathing

QuietBrace structural fiberboard sheathing is a high-density fiberboard panel for added structural strength plus sound and thermal resistance. It is an approved method of wall bracing under the International Residential Code (IRC) 2012.

  • Noise Reduction: QuietBrace sheathing helps block airborne sound waves and absorbs surface-to-surface vibration transfer to reduce sound transmitted through dense building material such as wood and masonry
  • Adds insulation value and exterior coating helps repel liquid moisture

Details

QuietBrace structural fiberboard sheathing is a high-density fiberboard panel for added structural strength plus sound and thermal resistance. It is an approved method of wall bracing under the International Residential Code (IRC) 2012.

  • Noise Reduction: QuietBrace sheathing helps block airborne sound waves and absorbs surface-to-surface vibration transfer to reduce sound transmitted through dense building material such as wood and masonry
  • Adds insulation value and exterior coating helps repel liquid moisture

Structural Strength

  • Complies with IRC 2012 and ASTM C208
  • Approved method of wall bracing under the International Residential Code (IRC) 2012
  • Third-party certified to meet ASTM E72

Building Code References

  • Structural fiberboard conforming to the ASTM C208 product standard has been recognized in the model building codes as an acceptable wall bracing material for many years. Below is a listing of various references to structural fiberboard sheathing in the major model building codes.
  • 2012 International Residential Code
    Section R602: Table R602.10.4 Method SFB (Structural Fiberboard Sheathing) and Method CS-SFB (for Continuously-Sheathed Structural Fiberboard). Also, for Method CS-SFB, see Section R602.10.5 and Table R602.10.5.2.
  • 2009 International Residential Code
    Section R602: Table R602.10.2 Method SFB (Structural Fiberboard Sheathing). For Continuously-Sheathed Method see Section R602.10.5 and Table R602.10.5.2.
  • 2006 International Residential Code
    Section R602.10.3 Method 4 and Table R602.10.1.
  • International Building Code
    Section 2303.1.5, 2304.6 and Table 2304.6. Conventional frame construction: Section 2308.9.3 Method 4 and Table 2308.9.3(1). For design: Sections 2305.3, 2305.3.8, 2306.4.4 and Table 2308.9.3(4).
  • Applications

    • Code-recognized (IRC 2012) structural wall bracing and racking resistance
    • Sound transmission-resistant wall construction component
    • Supplemental thermal insulation panel
    • Wall system component material for 1-hour fire-resistance-rated wall assembly

    Added Insulation Value

    Can help increase a structure’s energy efficiency and help reduce its utility expenses

    Moisture Protection

    • Exterior coating helps repel liquid moisture
    • Permeable panel allows walls to breathe - meaning moisture vapor can pass through the panel

    Simplified Application

    • Lightweight so it is easy to carry, cut and handle during installation, even with a smaller crew.
    • Available in lengths up to 10’ for maximum material and time efficiency on taller structures.

    Made Using Recovered Fiber Material

    Product is manufactured from previously discarded wood resources and recovered fiber material.

    Approved for Fire-Rated Assemblies

    Approved by Underwriters Laboratories as a wall assembly component for multi-family and commercial wall systems requiring a 1-hour fire rating in accordance with UL assembly U356 (interior wall to flame).

    Sizes

    • Sheet Thickness: 1/2" and 25/32”
    • Sheet Dimensions: 4’x8’, 4’x9’ and 4’x10’
    • Pieces per Unit: 90, 60

    Tolerances

    • Thickness: ±10%
    • Length and Width: +0-1/16” (total tolerance must not exceed +0-3/8” in any dimension)

    Product Specifications

    Insulating R-Value*: 1.31 (1/2”)
    2.06 (25/32”)
    Density: 21-25 lbs./cu. ft.
    Tensile Strength: Parallel to Surface: 200 psi. min.
    Transverse Strength: 20 lbs. min.
    Water Absorption, 1/2”: 15% max. 24 hr (1/2”)
    7% max. 2 hr (25/32”)
    Vapor Permeance: 5 grains/h·ft2·in Hg min.
    Flame Spread Index: >75 (Class III or C) Smoke developed <300
    Sound Transmission Class: 26 (ASTM Method E90)
    Noise Reduction Coefficient (NRC) 0.30 (ASTM Method E795)

    *"R" means resistance to heat flow. The higher the “R” value, the greater the insulating value.

    Specifications

    Installation

    Safety and Sustainability

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