Complete Compiled Specification.pdf - Peck Ormsby Construction

2.02 MATERIALS
A. Primer/Adhesive: Acrylic based approved by manufacturer of the finish system.
B. Insulation Board: Expanded Polystyrene complying with the requirements of FS-HH-I-524C,
Type 1. Flame spread shall be less than 25 and smoke development shall be less than 450
when tested in accordance with ASTM E-84. Thickness is indicated on the drawings.
C. Standard reinforcing fabric shall be balanced open weave, treated glass fiber mesh, 3.8
ounce per sq. yard.
D. Finish shall be acrylic-based factory mixed materials, intregal color and texture.
E. Cement: Type 1, Portland Cement, ASTM C-150.
F. Water: Potable
G. Sealant: Tremco "Dymeric" with primer #1, Pecora "Dynatrol 11" with Primer P75, or Dow
Insulation Mastic No. 11.
PART 3 - ERECTION
3.01 WEATHER CONDITIONS
A. Ambient air and substrate temperatures shall be 40 degrees F. or greater and rising at the
time of installation and shall remain at least 40 degrees F. for at least 24 hours after
application.
3.02 INSTALLATION - GENERAL
A. Insulation boards shall be applied with joints offset with respect to the substrate joints using a
running bond pattern, with joints at corners staggered and interlocked.
B. Provide temporary protection during installation of system and prior to installation of sealants
and flashing systems.
3.03 PRIMER/ADHESIVE AND INSULATION BOARD
A. Apply 6" wide strips of reinforcing mesh to substrate, after board is applied fold reinforcing
mesh around edge and overlap face sheet with edge strip. Apply primer/adhesive mixture to
entire surface of one face of insulation board using a 3/8" notched trowel. Make sure ribbons
of adhesive are full and reach the outer perimeter of the EPS board.
B. Mount prepared board to substrate, tamp board using even pressure to produce uniform
contact and bond. Allow to cure 24 hours. Install all routed joints.
C. Sand high areas of insulation board to produce a level plane surface.
3.04 BASE COAT AND MESH
A. Apply base coat, 1/16" thick coat of primer/adhesive mixture to the surface of insulation
board. Immediately embed reinforcing fabric into wet primer/adhesive mixture. Fabric shall be
abutted and staggered. Allow to dry 12 hours.
B. Apply 1 layer of base coat over the reinforcing fabric. Allow to dry 24 hours. Wrap reinforcing
SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDITION MARCH 2, 2009
EXTERIOR INSULATION AND FINISH SYSTEM 07240 - 2