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Description

Gold Bond^® BRAND SoundBreak^® Gypsum Board is an acoustically enhanced gypsum board used in the construction of high rated STC wall assemblies. This 5/8" thick gypsum board consists of a layer of viscoelastic damping polymer sandwiched between two pieces of enhanced high density mold resistant gypsum board, providing constrained layer damping.

For speed of installation, GridMarX^® guide marks are printed on the paper surface.

Long edges of the panels are tapered. Tapered edges allow joints to be reinforced with ProForm^® BRAND Joint Tape and concealed with ProForm^® BRAND Ready Mix, Easy Finish^® BRAND Ready Mix or ProForm^® BRAND Sta-Smooth Joint Compounds.

Applications

• For use as single-layer application or as a component of multi-layered wall assemblies where sound transmission between rooms or dwelling units is a concern.

• Use of SoundBreak Gypsum Board results in wall partitions with high rated STC values that are thinner than traditionally built high rated STC wall partitions, providing increased usable floor space.
• Superior sound damping, cost efficient material that is easily finished and decorated in the same manner as regular gypsum board.
• All SoundBreak Gypsum Board designs were tested by an independent third-party acoustical laboratory using the full scale ASTM E90 test procedure.
• SoundBreak Gypsum Board is installed like traditional gypsum board, offering a more reliable and less complicated solution than alternative methods requiring clips and/or channels.
• SoundBreak Gypsum Board can be cut by scoring deeply from both sides of the board before snapping, or with the use of a hand or power saw.

Fire Resistance Ratings

1-HOUR FIRE RESISTANCE RATING - 1-hour wall assembly consists of 3 5/8” steel studs 24” o.c. On one side 5/8” SoundBreak Gypsum Board attached vertically with 1” type S screws spaced 8” o.c. at perimeter and 12” o.c. in the field. Opposite side 5/8” Fire-Shield Gypsum Board attached vertically with 1” type S screws spaced 8” o.c. at perimeter and 12” o.c. in the field. Joints staggered 24” on opposite sides. 3” thick mineral fiber insulation in stud cavity.

2-HOUR RATING – 2-hour wall assembly consists of 3 5/8” steel studs 24” o.c. On one side, base layer of 5/8” Fire-Shield Gypsum Board attached vertically with 1” type S screws 24” o.c. in the field and perimeter, face layer of 5/8” SoundBreak Gypsum Board attached vertically with 1 5/8” type S screws 12” o.c. in the field and perimeter. Opposite side, two layers 5/8” Fire-Shield gypsum board applied vertically, base layer attached with 1” type S screws 24” o.c. in the field and perimeter, face layer attached with 1-5/8” type S screws 12” o.c. in the field and perimeter. Joints staggered 24” between face and base layers and opposite side.  

As an option, SoundBreak Gypsum Board may be used as an additional layer on one or both sides of fire-rated wall assemblies (i.e., U300, W300, U400, W400 and V400 series designs). SoundBreak Gypsum Board cannot be used as a substitute for 5/8" Type X gypsum board in a fire-rated assembly.

SoundBreak Gypsum Board shall be attached in accordance with manufacturer's recommendations. When SoundBreak Gypsum Board is installed between the framing and the UL/ULC Classified gypsum board, the UL/ULC Classified gypsum board layer(s) required for the design is/are to be installed as indicated in the design as to fastener type and spacing, except that the required fastener length shall be increased by a minimum of 5/8" (16 mm).

For U300, W300, U400, W400 and V400 series designs, outer layer treated with joint compound and paper tape as specified in the design.

For additional information go to UL/ULC Online Certifications Directories,
Product Category Code CLBV.R25426 — Wall and Partition Facings
and Accessories.

Mold and Mildew Resistance*

SoundBreak Gypsum Board was designed to provide extra protection against mold and mildew compared to standard gypsum board products. When tested by an independent lab per ASTM D 3273 ("Standard Test Method for Resistance to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber"), SoundBreak Gypsum Board achieved a score of 10, the best possible score for this test.

*No material can be considered "mold-proof", nor is it certain that any material will resist mold or mildew indefinitely. When used in conjunction with good design, handling and construction practices, SoundBreak Gypsum Board can provide increased mold resistance versus standard gypsum board products. As with any building material, avoiding water exposure during handling, storage and installation, and after installation is complete, is the best way to avoid the formation of mold or mildew.