Complete Compiled Specification.pdf - Peck Ormsby Construction

D. Exterior Face: Provide a permanent glass veil erosion barrier integrally embedded to provide
maximum long-term resistance to fiber exposure. Substitute plastic surface films, coatings or
veils not acceptable.
E. Face Sheets: Provide smooth face sheets with maximum variation in thickness of not more
than plus or minus 10% and uniform in color.
1. Exterior Face Sheet:
a. Thickness: 0.070"
b. Color: Crystal.
2. Interior Face Sheet:
a. Thickness: 0.045".
b. Color: White.
F. Panel System: 2-3/4" thick, made of two sheets of translucent fiberglass, bonded by heat and
pressure to either an aluminum or composite grid core specifically for architectural use.
G. Thermal Insulation: Provide NFRC laboratory tested and certified system:
1. “U” Factor: 0.29 by ASTM C-236, E-1423 and C-1199.
H. Light & Solar Transmission per ASTM E-972:
1. Light Transmission: 20
2. Shading Coefficient: 0.219.
I. Grid Cores:
1. Grid Pattern: Symmetrical about the horizontal centerline for each flat panel:
a. Nominal 12” x 12", square.
2. Panels shall withstand 1200 degrees F fire for minimum (1) hour without collapse or
exterior flaming.
J. Adhesive:
1. Laminate Adhesive: Heat and pressure resin-type engineered for structural sandwich
panel use, with minimum 25 years field use, and passing testing requirements
specified by the International Conference of Building Officials “Acceptance Criteria for
Sandwich Panel Adhesive.”
2. Minimum Strength: 750 PSI tensile strength by ASTM C-297 after two (2) exposures
to six (6) cycles each of the aging conditions prescribed by ASTM D-1037.
3. Shear strength by ASTM D-1002 minimum after exposures to five (5) separate aging
conditions:
a. 50% Relative Humidity at 73 degrees F: 540 PSI
b. 182 degrees F: 100 PSI
c. Accelerated Aging by ASTM D-1037 at room temperature: 800 PSI
d. Accelerated Aging by ASTM D-1037 at 182 degrees F: 250 PSI
e. 500-hour Oxygen Bomb by ASTM D-572: 1400 PSI
K. Impact Resistance:
1. Exterior Face Sheet: Uniform in strength and repel an impact equal to 60 ft. lbs.
without fracture or tear when impacted by 3-1/2" diameter, 6.37 lb. free-falling ball,
and be resistant to penetration by pencil point.
L. Translucent Structural Sandwich Panel: True sandwich panel of flat fiberglass sheets bonded
to a grid core of mechanically interlocking I-beams, laminated under a controlled process of
heat and pressure, and deflect no more than 1.9" at 30 psf in 10' by ASTM E-72.
M. The adhesive bonding line shall be straight, cover the entire width of the I-beam, and have a
neat, sharp edge. In order to insure bonding strength, white spots at intersections of mutins
SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDITION
INSULATED TRANSLUCENT SANDWICH PANEL WALL/ROOF SYSTEM 08950 - 4