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NOTE ** Delete one of the two following sub-paragraphs;
coordinate with Division 01 requirements.
2. Requests for substitution will be considered in
accordance with provisions of Section 01600.
3. Substitutions: Not permitted.
4. Product description: One layer of polyethylene
bubble film sandwiched between two layers of aluminum
foil; fungi-resistant material having the following
characteristics:
a. Thickness: Nominal 3/16 inch (6.35 mm).
b. Weight: 0.811 ounces per square foot (247 grams
per square meter).
c. Flame spread/smoke developed rating, in accord
with ASTM E 84: 15 Flame/30 Smoke.
d. Fire rating: NFPA Class A / UBC Class 1.
e. Linear shrinkage: None.
f. Puncture resistance: 63 pounds per square inch
(434 kPa).
g. R-value, in accord with ASTM C 236: 14.5 (2.553
square meters per degree Kelvin per watt) down;
7.0 (1.232 square meters per degree Kelvin per
watt) horizontal; 4.9 (0.862 square meters per
degree Kelvin per watt) up.
h. U-value: 0.077 (0.437 watts per square meter per
degree Kelvin) down; 0.109 (0.619 watts per
square meter per degree Kelvin) horizontal; 0.119
(0.675 watts per square meter per degree Kelvin)
up.
i. Emittance, ASTM E 408: 0.03 - 0.04.
j. Reflectivity: 0.96 - 0.97
k. Degradation: 0.
l. Perm rating, according to ASTM E-96: 0.002
(0.114 ng/Pa s per square meter).
NOTE ** Retain one of the following two sub-paragraphs to
specify roll width.
m. Roll width: Nominal 4 feet (122 cm)
n. Roll width: Nominal 6 feet (183 cm)
C. Fasteners: Type and size recommended by manufacturer for
project conditions.
PART 3 EXECUTION
3.1 EXAMINATION
A. Ensure that electrical wiring adjacent to reflective
insulation/radiant barrier material installations is in
good condition.
3.2 PREPARATION
A. Turn off electricity in each area of reflective
insulation/radiant barrier material installation until
installation in that area is complete.
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