Standard: GA - 620


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Gypsum Area Separation Firewall systems provide the advantages of both fire-resistance and noise reduction between neighboring townhouses and other attached dwelling units. Gypsum Area Separation Firewalls are efficient, nonloadbearing, 2-hour fire resistance rated drywall systems that easily provide code complying STC ratings. Some of these walls achieve STC ratings of 60-64.

Gypsum Area Separation Firewalls are the walls of choice for townhouses up to four stories in height and are compatible with all common floor-to-ceiling heights. Gypsum Area Separation Firewalls offer numerous advantages over other materials historically used in these applications and are rapidly becoming the "standard" method for separating units in multi-family townhouse construction. Their thinner profile allows up to 6 in. (150 mm) more of usable floor space than a typical concrete block wall and reduced footing requirements.

Gypsum Area Separation Firewalls improve construction site safety and efficiency because they are installed one floor at a time, just like the rest of the building. No expensive scaffolding is required and the risk of a toppling masonry wall is completely eliminated. Gypsum Area Separation Firewalls are designed to be fast and economical to install. Large panels accelerate construction and can be installed by trades already on the job; concerns and scheduling problems related to bringing in another trade are eliminated. Gypsum Area Separation Firewalls can be installed year-round without costly cold weather provisions for drying because there is no mortar to freeze.

Performance properties of gypsum components are maintained and product quality is assured for every gypsum shaftliner panel by independent third party certification and labeling. The materials come to the job site ready to install without the need for mixing or preparing components onsite. Simply measure, cut, and install.

Gypsum Area Separation Firewalls are designed and recognized as being code compliant. These systems are specifically engineered to remain in place during a fire, even if the structure on the fire side collapses. The aluminum clips used to attach the steel studs to the wall separating the units will soften on the fire side and release if the burning unit collapses. The clips on the non-fire side are protected by the Gypsum Area Separation Firewall and will continue to support the Gypsum Area Separation Firewall, allowing it to remain intact, protecting the neighboring unit.

Organization: Gypsum Association
Document Number: 620
Publish Date: 2011-01-01
Page Count: 9
Available Languages: EN
DOD Adopted: NO
ANSI Approved: NO
Most Recent Revision: YES
Current Version: YES
Status: Active