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Preformed Pressure Release Issue Date: December 9, 2002 07611S-1 Roof Panel System SPECIAL SPECIFICATION


Preformed Pressure Release
Issue Date: December 9, 2002
07611S-1
Roof Panel System

SPECIAL SPECIFICATION
SECTION 07611S
PREFORMED PRESSURE RELEASE ROOF PANEL SYSTEM


PART 1 - GENERAL
1.01 DESCRIPTION OF WORK
A. Steel faced, pre-finished, foamed-in-place, insulating composite roof panels with
double interlocking side joints, snap-on batten cap, integral vapor seals, and
concealed structural fastening.
B. Metal trim, accessories, pressure release fasteners, and sealants related to the roof
panel system.
1.02 QUALITY ASSURANCE
A. CENTRIA, 1005 Beaver Grade Road, Moon Township, Pennsylvania 15108
products will establish the minimum level of quality and performance required. An
approved equal may be used.
B. Manufacturer shall demonstrate a minimum of five years of experience in the
specified products and applications.
1.03 SUBSTITUTIONS
A. Materials, accessories, testing, and processes specified shall establish the minimum
level of quality, performance, dimension, and appearance required of any
substitution.
B. No substitution will be considered without written submittals prior to purchase of
materials or scheduling of work.
C. Proposed substitutions shall include a complete description of the proposed
substitute including testing, samples, and other information necessary to
demonstrate the equivalency of the substitute.
1.04 PANEL PERFORMANCE TESTING
A. Structural designs shall have been established from tests per ASTM E72 chamber
method. Ultimate loads shall be established without the use of exposed or back-
side fasteners.


Preformed Pressure Release
Issue Date: December 9, 2002
07611S-2
Roof Panel System

B. Thermal transmission performance shall have been established from tests per
ASTM C236 and corrected to 15 mph wind outside and still air inside.
C. Air infiltration shall not exceed .03 cfm per square foot when tested at a static
pressure of 1.56 psf per ASTM E1680.
D. There shall be no uncontrolled water penetration at a static pressure of 6.24 psf
when tested per ASTM E1646.
E.
There shall be no evidence of delamination when the panels are tested by
simulating two million cycles of positive and negative deflection.
F.
Manufacturer shall demonstrate compliance with UL Class 90, FM I-90 or FM
1120 as required.
G. Manufacturer shall certify pressure release performance of fasteners.
H. All performance testing shall have been independently conducted or witnessed.
1.05 CODE ACCEPTANCE
A. Roof panel system shall comply with requirements for foam plastics and finished
panel performance as established by the applicable building code. Laboratory and
full scale testing including, but not limited to, the following shall be available.
1. Foam core and interior surface of the complete panel system shall demonstrate
compliance with the following criteria for surface burning characteristics per
UL Standard 723 9ASTM E84).
a. Flame spread 25* or less
b. Smoke developed 450 or less
c. * Numerical flame spread ratings are not intended to reflect hazards
presented by these materials under actual fire conditions.
2. Roof panel units shall be classified as a component of fire resistant rated roof
assembly designs per UL Standard 263.
3. Roof panel units shall be classified as building units for roof panel construction
per UL Standard 1256.
4. Panel units shall be approved as a Class 1 insulated wall or ceiling panel per FM
Standard 4880.
5. Ignition temperature testing of the foam plastic insulation shall have been
established per ASTM D1929.


Preformed Pressure Release
Issue Date: December 9, 2002
07611S-3
Roof Panel System

B. Completed assembly shall comply with NFPA 69, NFPA 495 and IFC 911 for relief
of explosion pressures.

C. WARRANTY
1. manufacturer shall warrant for a period of one year that the panels, trim, and
accessories furnished by the manufacturer will be free from defects in material
and factory workmanship.

PART 2 - PRODUCTS
2.01 PANEL DESIGN
A. Panel units shall consist of roll formed steel face and liner elements chemically
bonded to a continuously foamed-in-place urethane modified isocyanurate core.
B. Panel edges shall be double tongue and groove design with factory applied vapor
seal. Structural fasteners and clips shall be concealed within the side joint. The 1-
3/4 rib at the panel joint shall be covered with webbed mastic sealant and a roll
formed cap in the same gage and finish as the panel exterior.
C. Product to be used as standard of quality.
1. Versapanel 2.50 by Centria in 36 module with a tested U value of .046
BTU/hr-sq. ft.
o
F, or approved equal.

2.02 MATERIALS AND FINISHES
A. Panel exterior skin shall be selected from the following.
1. ASTM A653, Grade 37, G90 galvanized steel, non-directionally embossed
(except in Cornstan Plus finish) and planked in 20 gage, containing a min. 35%
recycled steel.
2. Panel interior skin shall be selected from the following:
a. ASTM A653, Grade 37, galvanized steel, non-directionally embossed and
planked in 20 gage, containing a min. 35% recycled steel.
3. Panel exterior finish shall be DURAGUARD by Centria, or approved equal,
consisting of a 0.8 mil primer with a 0.8 mil 70% Hylar 5000 or Kynar 500
color coat. Color to be chosen from the manufacturers standards.



Preformed Pressure Release
Issue Date: December 9, 2002
07611S-4
Roof Panel System

4. Panel interior finish shall consist of a 0.2 mil primer each side with a 0.6 mil
acrylic on the interior finish and color chosen from the manufacturers
standards.
5. Urethane modified isocyanurate core shall be poured in place to fill all voids in
the panel and have the following minimum physical properties:
a. Density 2.7 pcf, Shear stress 20 psi, Compressive strength 20 psi,
Tensile strength 20 psi
2.03 FABRICATION
A. Steel trim shall be the same finish and gage as the exterior and/or interior of the
panels.
B. Panels and trim bundles shall be protected with water resistant paper and provided
with wood collars to permit handling and stacking in the field.
2.04 PRESSURE RELEASE FASTENERS
A. Screw type fasteners with pressure release washers.
B. Sizes: Diameters and lengths per manufacturers standard for application designed.
C. Drive System: Hex head type B thread/point to be installed using standard drive
tools.
D. Material: stainless steel screws with aluminum alloy washers bonded with
vulcanized neoprene or EPDM.
E.
Product: Textron Vent-All explosion venting fasteners or approved equal.
Release pressures and patterns as shown on the drawings.


PART 3 - EXECUTION
3.01 INSPECTION
A. Building tolerances on the panel support steel shall not exceed those defined by the
panel manufacturer.
1. 3/8 inch in any 20 foot length.
2. 3/4 inch over any single roof plane.
B. Alignment of the panel support system should be checked and defects corrected
prior to installing panels.


Preformed Pressure Release
Issue Date: December 9, 2002
07611S-5
Roof Panel System

3.02 INSTALLATION
A. Panel erector shall demonstrate at least five years of experiences installing similar
products and applications.
B. Panels, trim, accessories, and sealants shall be installed in accordance with
approved shop drawings to insure a functional and weathertight installation.
C. Fasteners to be installed per manufacturers instructions. Panels, fasteners or
washers deformed during installation will be replaced at Contractors expense.
D. Dry wipe-down of the exterior surface should be done as the panels are installed.

END OF SECTION