SPECIAL SPECIFICATION

SECTION 08950

EXPLOSION VENTING WALL PANEL SYSTEM

[PART 1 - GENERAL]{.underline}

1.01 DESCRIPTION OF WORK 2

1.02 REFERENCES 2

1.03 QUALITY ASSURANCE 4

1.04 SUBMITTALS 4

1.05 STORAGE 6

[PART 2 - PRODUCTS]{.underline}

2.01 TRANSLUCENT FACING 6

2.02 NON-COMBUSTIBLE GRID CORE 7

2.03 ADHESIVE 7

2.04 PANEL CONSTRUCTION 8

2.05 BATTENS AND PERIMETER CLOSURE SYSTEMS 8

2.06 FLEXIBLE SEALING TAPE 8

2.07 EXPLOSION VENTING SYSTEM & WIND PRESSURE REQUIREMENTS. 9

[PART 3 - EXECUTION]{.underline}

3.01 PREPARATION 9

3.02 ERECTION 9

3.03 CLEANING 10

SPECIAL SPECIFICATION

SECTION 08950

EXPLOSION VENTING WALL PANEL SYSTEM

[PART 1 - GENERAL]{.underline}

1.01 [DESCRIPTION OF WORK]{.underline}

A. All requirements of the contract documents form an integral part of
the work specified herein; in particular, refer to the conditions
(general or otherwise), and Division 1 of the specifications, including
all subdivisions thereof.

B. Explosion venting panels shall consist of double faced, translucent,
insulated flat sandwich panels and attachment system including
installation. Panels shall be

2-3/4" thick and consist of glass fiber reinforced polymer faces bonded
to a mechanically interlocked aluminum grid core.

C. [Work Included]{.underline}: Supply all labor and materials required
to deliver and install the insulated explosion venting panel system. The
following major items are included:

1\. Translucent panels.

2\. Explosive release fastening system.

3\. Installation system.

D. [Related work specified elsewhere]{.underline}:

1\. Division 5, Section "Structural Steel".

2\. Division 5, Section "Miscellaneous Metals".

3\. Division 7, Section "Joint Sealants".

1.02 [REFERENCES]{.underline}

A. [American National Standards Institute (ANSI/American Architectural
Manufacturers Association (AAMA)]{.underline}

605.2 Voluntary Specification for High Performance Organic Coatings on

Architectural Extrusions and Panels.

B. [American Society for Testing and Materials (ASTM)]{.underline}

A 123 Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and
Steel Products

B 221 Specifications for Aluminum and Aluminum-Allow Extruded Bars,

Rods, Wire, Shapes and Tubes

C-236 Test Method for Steady-State Thermal Performance of Building

Assemblies by Means of a Guarded Hot Box

C-297 Test Methods for Tensile Strengths of Flat Sandwich Construction
in

Flatwise Plane

D-635 Test Method for Rate of Burning and/or Extent and Time of Burning

of Self-Supporting Plastics in a Horizontal Position

D-1002 Test Method for Apparent Shear Strength of Single-Lap-Joint

Adhesively Bonded Metal Specimens (Metal-to-Metal)

D-1037 Test Methods of Evaluation the Properties of Wood-Base Fiber and

Particle Panel Materials

D-1183 Test Method for Resistance of Adhesives to Cyclic Laboratory

Aging Conditions.

D-2244 Test Method for Calculation of Color Differences from
Instrumentally

Measured Color Coordinates

E-72 Methods of Conducting Strength Tests of Panels for Building

Construction

E-84 Test Method for Surface Burning Characteristics of Building
Materials

E-699 Criteria for Evaluation of Agencies Involved in Testing, Quality

Assurance, and Evaluating Building Components in Accordance

with Test Methods promulgated by ASTM Committee E-6

C. [Factory Mutual Research Corporation]{.underline}

1.03 [QUALITY ASSURANCE]{.underline}

A. [Manufacturer's and Erector's Qualifications:]{.underline}

1\. Panel system manufacturer must be listed by the International
Conference of Building Officials, which requires quality control
inspections by an approved agency for sandwich panel construction.

2\. Quality control inspections and testing, conducted at least once
each year, shall include manufacturing facilities, sandwich panel
components and production sandwich panels for conformance with
"Acceptance Criteria for Sandwich Panels" as regulated by the Uniform
Building Code or equivalent.

3\. Materials and products shall be manufactured by a company
continuously and regularly employed in the manufacture of similar
materials for a period of at least ten (10) consecutive years; and which
can show evidence of these materials being satisfactorily used on at
least six (6) projects of similar size, scope and type within such a
period. At least three (3) of the projects shall have been in successful
use for five (5) years or longer.

4\. Erection shall be by an installer which has been in the business of
erecting similar materials for at least five (5) consecutive years; and
can show evidence of satisfactory completion of projects of similar
size, scope and type.

5\. The Explosion Venting Panel System shall be approved by Factory
Mutual Research Corporation for use in pressure-relieving construction.

B. [Performance Requirements]{.underline}: The manufacturer shall be
responsible for the configuration and fabrication of the complete panel
system.

1.04 [SUBMITTALS]{.underline}

Submit the following in accordance with the Conditions of Contract and
Division 1, Section, "Descriptive Submittals."

A. [Submit shop drawings]{.underline} showing the total panel systems at
1/4" = 1/0" and all details of construction at full scale.

B. [Test reports]{.underline} to be furnished by sandwich panel system
manufacturer in accordance with Division 1, Submittals. The manufacturer
shall submit certified test reports made by an independent testing
organization for each type and class of panel system. Reports shall
verify that the material will meet all performance requirements of this
specification. Previously completed test reports will be acceptable if
current and indicative of products used on this project. Test reports
required are:

1\. Flame Spread and Smoke Development (ASTM E-84).

2\. Burn Extent (ASTM D-635).

3\. Color Difference (ASTM D-2244).

4\. Impact Strength (SPI Method).

5\. Bond Strength (ASTM C-297 and ASTM D-1002).

6\. Accelerated Aging (ASTM D-1037).

7\. Beam Bending Strength (ASTM E-72).

8\. Insulation "U" Factor (ASTM C-236).

C. [Proof of regular, independent quality control]{.underline}
monitoring by an approved agency shall be submitted.

D. [Submit certifications]{.underline} and proof of manufacturer's and
erector's qualifications as itemized below:

1\. Manufacturer qualifications to substantiate the requirements above
under paragraph 1.03, A, 3.

2\. Erector's qualifications to substantiate the requirements above
under paragraph 1.03, A, 4.

E. [Submit Certified approval]{.underline} of the explosion venting
panel system by the Factory Mutual Research Corporation for meeting the
requirements of

for explosion relieving construction.

F. [Submit samples]{.underline} 12" x 24" (minimum) of the sandwich
panel, a sample of the aluminum battens and closure systems, and a
sample of the explosion relieving fasteners. Provide the Sandia
Delegated Representative (SDR) with 2" x 3" (minimum) custom color chips
on aluminum for selection by the Sandia Delegated Representative (SDR).

G. [Submit instructions]{.underline} for the removal and re-installation
of the panels within the perimeter framing system. The instructions
shall address a logical sequence of steps that could be followed by
competent trades or maintenance personnel. The instructions must list
recommended bolt torque and tolerance required for the explosion
relieving fasteners.

H. [Provide certification]{.underline} stating that all materials used
are asbestos-free and lead paint-free.

1.05 [STORAGE]{.underline}

A. Store translucent panels on the long edge, several inches above the
ground, blocked and under cover to prevent warping.

[PART 2 - PRODUCTS]{.underline}

2.01 [TRANSLUCENT FACING]{.underline}

A. [Translucent faces]{.underline} shall be manufactured by panel system
fabricator especially for architectural use.

B. [Flammability]{.underline}: The interior face sheet shall have a
flame spread rating no greater than 45 and smoke developed no greater
than 350 when tested in accordance with ASTM E-84. Burn extent by ASTM
D-635 shall be no greater than 1".

C. [Weatherability]{.underline}:

1\. The full thickness of the exterior face shall not change color more
than 3.0 Units (DELTA E by ASTM D-2244) after five (5) years outdoor
South Florida weathering at 7^o^ facing South, determined by the average
of at least three (3) white samples without a protective film or coating
to insure maximum, long term color stability.

2\. A white interior face sheet shall not darken more than 0.2 Units
(DELTA L by ASTM D-2244) when exposed to 150 ^o^ F for two (2) weeks.

3\. The exterior face shall have a permanent glass erosion barrier to
provide maximum long term resistance to surface erosion.

4\. The exterior face shall have a self-cleaning thermoset acrylic
urethane surface molecularly bonded under factory controlled conditions,
minimum 1.2 mils thick, fully field restorable if worn or damaged.

D. [Appearance]{.underline}:

1\. The faces shall be uniform in color to prevent splotchy appearance.
Faces shall be completely free of ridges and wrinkles which prevent
proper surface contact in bonding to the aluminum grid core. Clusters of
air bubbles/pinholes which collect moisture and dirt will not be
acceptable.

2\. Exterior face sheets shall be .070" thick and crystal in color.
Interior face sheets shall be .045" thick and white in color. Faces
shall not vary more than [+]{.underline} 10% in thickness.

E. [Strength]{.underline}: The exterior face sheet shall be uniform in
strength and repel an impact equal to 60 ft. lbs. without fracture or
tear in accordance with SPI Shatter Resistance Test.

2.02 [NON-COMBUSTIBLE GRID CORE]{.underline}

A. [All aluminum]{.underline} extrusions shall meet the requirements of
ASTM B221 except as modified herein. The aluminum I-beams shall be
6061-T6 with provisions for mechanical interlocking of muntin-mullion
and perimeter to prevent high and low intersections which do not allow
full bonding surface to contact with face material. Width of I-beam
shall be no less than 7/16". Aluminum I-beam for the grid shall be
machined to tolerances of not greater than [+]{.underline} .002".

2.03 [ADHESIVE]{.underline}

A. The laminate adhesive shall be heat and pressure resin-type
engineered for structural sandwich panel use. Adhesive shall pass
testing requirements specified by the International Conference of
Building Officials "Acceptance Criteria for Sandwich Panel Adhesive".
Minimum strength shall be:

1\. 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.

2\. 500 PSI Shear strength average of five (5) exposures by ASTM D-1002:

a\. 50% relative humidity at 73 ^o^ F.

b\. Accelerated Aging by ASTM D-1183.

c\. 182 ^o^ F.

d\. Full Cycle Soak.

e\. 500 Hour Oxygen Bomb.

2.04 [PANEL CONSTRUCTION]{.underline}

A. [Panels]{.underline} shall have a thickness of 2-3/4" with a "U"
factor of 0.18; light transmission of 8% and shading coefficient of
0.07.

B. [Translucent panels]{.underline} shall be a true sandwich panel of
flat fiberglass sheets bonded to a grid core of mechanically
interlocking aluminum I-beams and shall be laminated under a controlled
process of heat and pressure. Tape bond systems are not allowed.

C. [Translucent sandwich panel deflection]{.underline} shall not exceed
3.5" at 35 lbs. per sq. foot loading and shall not exceed 0.10" set
deflection five (5) minutes after load release per ASTM E-72 with a 12'
clearspan, tested flat.

D. [All grid patterns]{.underline} shall be 12" x 24" nominal shoji
(long dimension vertical) and be symmetrical about the horizontal center
line of each panel.

E. [The adhesive bonding line]{.underline} 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 muntins and
mullions shall not exceed four (4) for each forty (40) square feet of
panel, nor shall they be more than 3/64" in width.

2.05 [BATTENS AND PERIMETER CLOSURE SYSTEMS]{.underline}

A. Extruded 6063-T6 and 6063-T5 aluminum screw clamp-tite closure
system. Thermal break perimeter system shall be factory prefabricated
with "U" = .50 or less.

B. All battens and perimeter closures to be supplied with 300 Series
stainless steel screws (excluding final fasteners to the building).

C. All exposed aluminum to be architectural 2-coat fluorocarbon system
(high performance organic coating) equal to ANSI/AAMA 605.2. Color and
gloss to match wall panels as specified in Section "Manufactured Roof
and Wall Panels".

2.06 [FLEXIBLE SEALING TAPE]{.underline}

A. Sealing tape shall be manufacturer's standard pre-applied to closure
system at the factory under controlled conditions.

2.07 [EXPLOSION VENTING SYSTEM & WIND PRESSURE REQUIREMENTS]{.underline}

A. Translucent explosion venting panel system shall be designed so that
the panels release from their perimeter frames at an internal static
pressure within the building of 20 psf [+]{.underline} 20% relative to
the outside. The panel system shall be capable of sustaining a wind
pressure head-on load of 20 psf and a wind suction load of 10 psf
without releasing.

B. The explosion venting panels shall be tethered by a flexible wire
capable of preventing the panels, in the event of a release, from
dislodging from their installed position no further than 5 feet.

[PART 3 - EXECUTION]{.underline}

3.01 [PREPARATION]{.underline}

A. The general contractor shall prepare openings including isolating
dissimilar materials from aluminum system which may cause damage by
electrolysis.

B. The panel erector shall perform an inspection of the building opening
to verify that the rough opening dimensions at the specified openings
are of the proper dimensions on the drawings. The panel erector shall
inspect the building opening and attachment support to insure that all
requirements of this specification will be met once the panels are
installed. The erector shall promptly notify the general contractor of
any discrepancies or modifications required to the building and wait for
their resolution prior to proceeding with erection.

3.02 [ERECTION]{.underline}

A. The erector shall erect the explosion venting panel system in strict
accordance with approved shop drawings as supplied by manufacturer.
Fastening and sealing shall be in strict accordance with manufacturer's
shop drawings. All aluminum shall be cleaned before sealants are
applied.

B. After other trades have completed work on adjacent material,
carefully inspect explosion venting panel system installation and make
adjustments necessary to insure proper installation and weather-tight
conditions.

C. All staging, lifts and hoists required for the complete panel
installation, including staging, etc., necessary for field measuring,
shall be provided by, set up and maintained by the erection contractor.

3.03 [CLEANING]{.underline}

A. Clean the completed system, inside and out, promptly after erection
and installation of panels, allowing for nominal curing of liquid
sealants. The installer shall advise the Contractor of proper and
adequate procedures for protection and cleaning during the remainder of
the construction period so that the system will be without damage and
deterioration at the time of acceptance.

B. At the time of Substantial Completion, clean the explosion venting
panel system thoroughly. Demonstrate proper cleaning methods and
materials to the Owner's maintenance personnel.

END OF SECTION