Premier Floors - Manual (Page 35)

35
Plumbing
Whether you are building a standard stick
frame house or a panel home, Premier does
not recommend placing plumbing chases in the
exterior walls. This eliminates the possibility for
condensation and frozen pipes.
Situations do arise in which it becomes
necessary for a builder to consider options for
chases in the exterior walls such as a kitchen
sink next to a window or washer and dryer unit
next to an exterior wall. This situation can be
answered through the use of an “island vent”
through the floor to the nearest interior wall.
Another possible solution is to use an Air
Admittance Valve (AAV). AAV’s are one-way
valves that allow air into the vent stack without
requiring the vent stack to extend to the exterior
of the building. An example of an AAV can be
found at www.studor.com. Consult your local
building code for proper design.