Use and Care Guide

ToughRock
®
Gypsum Products
For latest information and updates:
Technical Service Hotline [phone] or www.gpgypsum.com
CAUTION: For product fire, safety and use information,
go to buildgp.com/safetyinfo.
17
ToughRock
®
Shaftliner – Area Separation Wall
As land costs and construction costs increase, more builders are constructing multi-family housing. Any time families share
walls, there is a concern about safety and comfort. A fire started by a careless tenant can destroy the accumulations of a
lifetime. The irritating noise of a neighbor can affect quality of life.
To meet these concerns, ToughRock
®
Shaftliner Area Separation Walls provide efficient and affordable fire and sound protection.
These “fire walls” are continuous from the foundation to the underside of the roof or to form a parapet. These “fire walls” allow
for one wall to collapse while still protecting the unit next door.
Components
The Area Separation Wall is constructed using 1” (25.4 mm) thick, 24” (610 mm) wide ToughRock Shaftliner boards, 25-gauge
(18 mils) steel H-studs, 25-gauge (18 mils) steel C-track and 2” (51 mm) aluminum breakaway clips.
Fire Testing and Building Code Compliance
This Area Separation Wall has been fire tested to ASTM E119. The 2-hour fire-rated Area Separation Wall assembly, using
ToughRock Shaftliner boards, is classified by UL and ITS/WHI and meets the requirements of the International Building Code
(IBC) Section 706, “Fire Walls.” This Area Separation Wall assembly using ToughRock Shaftliner boards is located in the UL Fire
Resistance Directory under UL Design U375 and the WHI Fire Resistance Directory under WHI GP/WA 120-04. Consult the
applicable fire resistance directory for additional information.
2x4 Wood Framing
Two 1” (25.4 mm) ToughRock
®
Shaftliner
Batt Insulation
Min. 3/4” (19 mm) air space between 2” (51 mm)
Area Separation Wall and Wood Framing
Back-to-back C-Tracks
1/2” (12.7 mm) ToughRock
®
Fireguard 45
®
Gypsum Board
Aluminum Breakaway Clip
Fire Blocking per Code