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Division 07 – Thermal and Moisture Protection
OPL Design No. CEJ 264P
07 84 00 Fire stopping
07 84 53 Building Perimeter Fire stopping
Page 3 of 4
Date Revised: June 20, 2014
©Intertek
Project No: 100141291SAT-007
Apply pressure to the EPS boards to
assist in the bonding process. All
EPS boards must be butted together
with no gaps or voids between them.
Allow a min. of 12 hours before
continuing the application process
when using adhesive. The EPS
boards must be rasped to remove all
irregular seams and establish a
continuous flat surface.
H. Exterior Curtain Wall Finish: The
plaster base coat and reinforcing
mesh is applied over the Exterior
Curtain Wall Insulation (2G).  Precut
the mesh as needed. The mesh is a
woven
fiberglass
reinforcement
fabric that is compatible with the
plaster base coat and finish coat
materials. Apply 1/16 to 1/8 in.  thick
plaster base coat to the exposed
surface of the EPS foam. Apply the
mesh; embed the mesh into the
plaster base coat using a trowel.
Start at the middle and work
outwards towards edges. The final
thickness of the plaster base coat
with the mesh embedded should be
approximately 1/16 in. Let the base
coat dry completely before applying
the plaster finish coat. The plaster
finish coat is a gypsum based wall
coating which may contain silica
sand or marble aggregates. Apply
the plaster finish coat using a trowel
in the same manner as the plaster
base coat.
I.  Glass Vision Panels: Glass vision
panels shall be a min. 35-1/2 in.
above the top surface of the floor
assembly. Glass vision panels shall
be installed to curtain wall framing
according to the curtain wall system
manufacturer's guidelines. Use a
min. 1/4 in. thick, clear tempered
glass with a nom. width of 59 in. and
height of 71 in.
J.  Window
Gaskets:
Secure
glass
vision panels with a thermal break
(thermal-set rubber extrusion).
K. Window Framing: Steel framing
members shall be a min. 3-5/8 in.
by 1-5/8 in.  18 GA steel "U" channel
or
similar
construction
that
is
compatible with steel-stud framing
(2b).  Locate window framing at least
35 in. above the top surface of the
floor assembly.
3. PERIMETER CAVITY PROTECTION:
The perimeter cavity (any void between
the edge of the floor slab and the interior
surface of the sandwiched wall (2C))
shall
not
exceed
an
8
in.
nom.
dimension and the perimeter cavity
treatment shall incorporate the following
construction features:
A.  Packing Material: Use a min. 4 in.
thick, 4 pcf density, mineral wool**
batt insulation installed with the
fibers running parallel to the slab
edge and curtain wall. The packing
material shall be compressed 33% in
the
cavity.
Compress
the
batt
insulation into the perimeter cavity
such that the top surface of the batt
insulation is flush with the top
surface of the concrete floor slab.
Splices (butt joints) in the lengths of
mineral wool batt insulation are to be
tightly compressed together, min.
compression 0.25 in.  per piece.
Notch packing material to receive
support angle (3C) so that packing
material
is
in
contact
with
Sandwiched
Wall
Surface
(2C).
Reference the Introduction to Fire
Resistive Joint Systems Section of
this Directory for more details on
how to determine the compressed
percentage of a known insulation
width installed in a known nominal
joint width and use the same formula
for the compressed percentage in
the cavity. (**Listed with Intertek)