B - Quad-Lock Building Systems

Service Access: (Pre-pour and After-pour methods)
PRODUCT MANUAL
Penetrations through walls for service access should be provided prior to pouring concrete by inserting a sleeve in a hole
cut in the Quad-Lock forms which is large enough to accommodate the wire or conduit necessary for service. Usually
this sleeve is a piece of PVC, ABS, or other plastic pipe. Mark the desired location for the service entrance by using the
sleeve for a template and draw the shape of the sleeve on the wall surface. Using a drywall saw, cut a hole to
accommodate the sleeve on both sides of the wall, and insert sleeve material. Use spray foam to secure the sleeve into
place for the concrete pour. MAKE SURE THAT YOUR SLEEVE MATERIAL IS COMPATIBLE WITH OTHER WIRING
OR CONDUIT THAT IS TO PASS THROUGH THE SLEEVE. When wire or conduit is in place, use spray foam to fill the
sleeve and secure wire or conduit.
Figure 95: Plumbing / Electrical Wall Penetration
Building Tip: Cut teeth in one end of a PVC pipe matching the desired hole size and “screw” it through the wall to
create the wall penetration. Reuse that piece for other holes.
Electrical Panel Placement:
Electrical panels can be placed on top of the foam or against concrete after the foam has been removed. It is not
suggested that an electrical panel be placed in the forms prior to pour and cast in place.
If a “surface-mount” of the electrical panel is desired, cut a piece of ½" [13mm] to ¾" [19mm] plywood to match the size
of the panel. Use a compatible adhesive or spray foam to glue the plywood to the surface of the foam, and also screw
the plywood to the flanges of plastic ties. A #8 or #10 screw has about 30 lbs of shear value per fastener, so use a
fastener count that exceeds the load to be placed on it. When the plywood is secured, mount the electrical panel to the
plywood with screws, or as recommended.
For excessively heavy panels, it may be desirable to use anchor bolts to connect directly to the concrete. Support the
box temporarily, and “through-drill” through the box, the foam panel, and into the concrete. Set anchor bolts into the
holes and set nuts as directed.
If a “flush-mount” is desired, pre-planning is required to substitute Quad-Lock Plus Panels at the location where the
electrical panel is to be mounted. The 4¼" [108mm] thick Plus Panels can be cut away from the mounting area to allow
a recessed installation of the panel. Direct connection to the concrete with anchor bolts or concrete screws is
recommended.
Box Placement:
Electrical boxes may be placed either prior to the concrete pour, using conduit inside the wall cavity, or after the pour by
cutting away the EPS insulation and exposing the concrete. Boxes should be sized to accommodate the wiring to be
placed inside, and be deep enough to connect to concrete, and still sit higher than the surface of the foam by the
thickness of the finish material (usually gypsum wallboard or stucco). Example: In the case of a 2¼" [57mm] Regular
Quad-Lock Panel, the box must be 2¾" [70mm] deep to touch the concrete, and remain flush to ½" [13mm] gypsum
wallboard attached to the foam.
Page 90 Chapter 2 – Design & Construction Details July 2009