Acoustiblok, a
registered trademark
A trademark (also written trade mark or trade-mark) is a form of intellectual property that consists of a word, phrase, symbol, design, or a combination that identifies a product or service from a particular source and distinguishes it from ot ...
of Acoustiblok Inc., is manufactured in the United States. It is a
sound attenuation material that was introduced in 1999. It is implemented in new construction and remodeling projects. It is designed to be applied behind
drywall
Drywall (also called plasterboard, dry lining, wallboard, sheet rock, gib board, gypsum board, buster board, turtles board, slap board, custard board, gypsum panel and gyprock) is a panel made of calcium sulfate dihydrate (gypsum), with or with ...
and other finishing materials.
Physical properties
Acoustiblok is a mass-loaded
vinyl
Vinyl may refer to:
Chemistry
* Polyvinyl chloride (PVC), a particular vinyl polymer
* Vinyl cation, a type of carbocation
* Vinyl group, a broad class of organic molecules in chemistry
* Vinyl polymer, a group of polymers derived from vinyl ...
sound isolation product. It is a dense yet flexible material that comes in two sizes; 16oz. and 32oz.
* 16oz Acoustiblok is 1/8" thick and has a surface mass density of 1 lb/ft
2.
* 32oz Acoustiblok is 1/4" thick and has a surface mass density of 2 lb/ft
2.
The manufacturer claims it is barium-free, has high UV resistance and has no fungal or algal growth.
Performance data
The ability of a partition to block the transmission of airborne sound can be described by a single number rating of the
Sound Transmission Class (STC).
* The 16oz version of Acoustiblok meets an STC of 26.
* The 32oz version of Acoustiblok meets an STC of 32.
* Adding one layer of Acoustiblok to a standard
metal
A metal () is a material that, when polished or fractured, shows a lustrous appearance, and conducts electrical resistivity and conductivity, electricity and thermal conductivity, heat relatively well. These properties are all associated wit ...
stud gypsum board interior wall has the potential to increase its STC rating.
* Double steel stud partition walls, faced with single layers of drywall and containing fiber-glass insulation and Acoustiblok, can achieve an STC of up to 66, according to the manufacturer.
STC is calculated using a range of frequencies similar to the human voice; attenuation in higher and lower ranges should be estimated from the Sound Transmission Loss graphs provided with standard STC reports.
Test procedures and the formula for calculation of STC values are defined in ASTM Standards E90-02 and E413-87.
Construction applications
New Construction, Remodel/Renovation
Acoustiblok material is typically installed in partition walls and floor/ceiling assemblies when they are stripped to the studs.
Classification
Acoustiblok is qualified for use in commercial and institutional construction by its UL Classification file, found under Fire Tests of Building Construction and Materials. This Classification includes use in wall designs of the U300, U400, and V400 series and floor-ceiling constructions of the L500 series, as specified in ANSI/UL 263 Fire Resistance Ratings.
ANSI/UL 263 Fire Resistance Ratings
/ref> Ratings of 1 and 2 hours can be obtained, depending on the specific partition design.
References
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Noise reduction