Instructions / Assembly
AreA SepArAtion WAll
32
The technical content of this literature is eective 5/31/12 and supersedes all previous information.Pub. No. CD-Full Line 5/12
clarkdietrich.com
Fire-resistance protects lives and property.
Area separation walls are nonload-bearing, 2-hour 
rated vertical wall assemblies that provide fire-resistant 
protection between adjacent living units in apartment 
buildings, condominiums and townhouses. They are also 
referred to as party walls, firewalls, multi-family walls and 
H-stud assemblies.
Assembled between two independent walls, area separation 
walls form a commonly shared party wall that extends 
from the foundation through the roofline. The walls are 
assembled with two 1"-thick gypsum panel liners vertically 
installed between 2" H-studs spaced 24" o.c. At the top 
and bottom of the walls, C-runners (or H-tracks) are 
installed back-to-back between vertically stacked panels. 
Overall stacked area separation wall assemblies cannot 
exceed 50 feet.
A photo of an area separation wall system after a fire is 
shown below. Although this was a tragic event, it clearly 
proves the eectiveness of the system. It performed 
as designed by maintaining the integrity of the firewall, 
protecting the lives and property of the adjacent units.
ClarkDietrich Area Separation Wall Systems










