This section is formatted to be compatible with that used in MASTERSPEC^®, a product of American Institute of Architects.

Section 08952 (formerly 08950) INSULATED TRANSLUCENT FIBERGLASS SANDWICH PANEL WALL/ROOF SYSTEM

Part 1 GENERAL

1.1 RELATED DOCUMENTS

Insert a related documents article if using this document in a project manual generated using MASTERSPEC¬.

1.2 SUMMARY

A. Section includes translucent fiberglass sandwich panel system for walls or skylights consisting of 2-3/4" thick flat (or curved) factory prefabricated into single units, (including factory installation).

B. Related sections include the following:

1. Structural steel/concrete/wood framing: Section ________
2. Curbs and supporting members: Section ________
3. Roofing: ________
4. Metal counter flashing: Section ________
5. Glass and glazing: Section ________
6. Masonry: Section ________
7. Joint sealants: Section ________

C. Requests for substitutions must be approved in writing or by addendum no later than 10 days prior to bid date and in keeping with Division 1 of the specifications.

1.3 PERFORMANCE REQUIREMENTS

A. Deflection of entire system shall be no more than L/45, unless otherwise indicated.

B Structural Loads: Provide system capable of handling the following loads when supporting full dead load:

1. Wind Load: ________
2. Snow Load: ________
3. Roof Load: ________
4. Negative Load: ________
5. Seismic Load: ________

C. Air/Water Infiltration: For Water Penetration, curtainwall system shall be tested per procedures of ASTM E331, and shall show no water entry at WTP=10.00 psf, @ 5.00 gph/ft. squared. Test shall be performed before and after uniform loads are applied. For Air Leakage, system shall be tested per procedures of ASTM E-283, and shall show results of no more than 0.01 cfm/ft. squared @ 1.56 psf (25 mph) and 0.01 cfm/ft. squared @ 6.24 psf (50 mph).

1.4 SUBMITTALS

A. Product Data: Submit shop drawings and color samples of face sheets and finishes according to Div. 1.

B. Samples: Submit product sample showing thickness, face sheets, colors and insulation 14" x 28".

C. Test Reports: To be furnished by systems manufacturer in accord with Div.1, Submittals. The manufacturer shall submit certified test reports 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 by current manufacturer and indicative of products used on this project. Test reports required are:

1. Flame Spread and Smoke Developed (ASTM E-84 by UL 723)
2. Burn Extent (ASTM D-635)
3. Color Difference (ASTM D-2244)
4. Impact Strength (UL 972)
5. Tensile Bond Strength (ASTM C-297 after aging by ASTM D-1037)
6. Shear Bond Strength (ASTM D-1002) after 5 different aging conditions
7. Beam Bending Strength (ASTM E-72)
8. Insulation "U" Factor (by NFRC 100; ASTM C-236; E-1423 and C-1199)
9. NFRC Certification - Optional
10. Condensation Resistance Factor (AAMA 1503)
11. Class A Roof Covering Burning Brand (ASTM E-108)
12. Class A Roof System UL Listed (UL-790) - Optional
13. Class I Fire Approval (FM 4881) - Optional

D. Proof of regular, independent quality control monitoring under a nationally recognized building code review and listing program shall be submitted.

E. Complete energy and structural calculations and all above data must be submitted with any request to be included as an approved product to bid this section.

1.5 QUALITY ASSURANCE

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

B. Shop drawings to be reviewed and stamped by a registered engineer if required.

C. System manufacturer must be listed by a recognized building code authority, including the International Conference of Building Officials, which requires quality control inspections, and fire, structural and water infiltration testing by an approved agency for sandwich panel systems.

D. Quality control inspections; and required 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 ICC-ES or equivalent.

E. Materials and products shall be manufactured by a company continuously and regularly employed in the manufacture of specified 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) projects shall have been in successful use for ten (10) years or longer.

F. Performance Requirement: The manufacturer shall be responsible for the configuration and fabrication of the complete panel system.

G. Product Options: Drawings indicated size, dimensions and profile to structural translucent panel system. Specifications indicate performance required. Other manufacturers that can meet portions of this specification and wish to be considered alternates must comply with Div. 1, Substitutions and Alternates, and can offer alternate bids for consideration using those guidelines.

1.6 PROJECT CONDITIONS

Field Measurements: Verify dimensions in system installation areas and indicate if dimensions on shop drawings are actual or guaranteed dimensions.

1.7 WARRANTY

A. General Warranty: Any warranties specified in this section shall not alter or change Owners rights and provisions received under other contract documents, and shall be in addition to those documents.

B. Special Warranty: System manufacturer shall provide written agreement to repair or replace all defective panel and system craftsmanship for a period of one (1) year, starting at date of delivery. Installer shall provide one (1) year warranty against leakage starting from date of installation completion.

1.8 PRODUCT HANDLING

Store panels on long edge, several inches above the ground, blocked and under cover to prevent damage. Follow manufacturer's storage and handling instructions.

Part 2 PRODUCTS

2.1 MANUFACTURERS

A. Kalwall Corporation - (800) 258-9777

B. Approved equal complying with design intent and all performance and material requirements.

2.2 MATERIALS -- TRANSLUCENT FACE SHEETS -- PANEL FABRICATION

A. Translucent fiberglass faces shall be manufactured from glass fiber reinforced thermoset resins by insulated system fabricator especially for architectural use. Thermoplastic (e.g. polycarbonate, acrylic) faces are not acceptable.

B. FLAMMABILITY: The interior face sheet shall be UL listed and have a flamespread rating no greater than 50 (20) and smoke developed no greater than 250 (200) when tested in accordance with UL 723. Burn extent by ASTM D-635 shall be no greater than 1". Faces shall not deform, deflect, drip when subject to fire or flame, or become detached when subjected to 300 degrees F for 25 minutes.

C. WEATHERABILITY: The full thickness of the exterior face shall not change color more than 3.0 Hunter or CIE Units DELTA E by ASTM D-2244 after five (5) years outdoor South Florida weathering at 5 degrees facing South, determined by the average of at least three (3) white samples with and without a protective film or coating to ensure maximum, long-term color stability. (Seven (7) Units for Class A Roof System, after 30 months exposure.)

D. The exterior face shall have a permanent glass erosion barrier integrally embedded to provide maximum long-term resistance to fiber exposure. Sacrificial plastic surface films, coatings or veils not acceptable.

E. Exterior face sheet shall be smooth, .070" thick and ________ in color. Interior face sheet shall be .045" thick and ________ in color. Faces shall not vary more than +/- 10% in thickness, and be uniform in color.

F. Panel system shall be 2-3/4" thick, made of two (2) sheets of translucent fiberglass, bonded by heat and pressure to either an aluminum or composite grid core specifically for architectural use.

G. THERMAL INSULATION: Panels shall have a NFRC laboratory tested "U" factor of (.53, .29, .26, .22, .18) or (.23, .18, .14, .10 thermally broken-flat only) by ASTM C-236, E-1423 and C-1199. System shall be NFRC certified.

H. LIGHT & SOLAR TRANSMISSION: Panels shall have a light transmission of ________ and shading coefficient of ________ per ASTM E-972.

I. GRID CORES:

1. Grid pattern shall be nominal 12" x 24" shoji and symmetrical about the horizontal center line for each flat panel.

2. The thermally broken (aluminum) I-beam grid core shall be 6063 T6 or 6005 T5 with provisions for mechanical interlocking of muntin-mullion and perimeter. Width of I-beam shall be no less than 7/16". The I-beam grid shall be machined to tolerances of not greater than +/- .002". Thermal break shall be 1" minimum.

3. Panels shall withstand 1200 degrees F fire for minimum (1) hour without collapse or exterior flaming.

4. Thermally broken panels shall give minimum CRF (Condensed Resistance Factor) of 80 by AAMA 1503 measured on the grid line.

J. ADHESIVE:

1. The laminate adhesive shall be heat and pressure resin-type engineered for structural sandwich panel use, with minimum 25 years field use. Adhesive shall pass testing requirements specified by the International Conference of Building Officials "Acceptance Criteria for Sandwich Panel Adhesive."

2. Minimum strength shall be 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:

The exterior face sheet shall be uniform in strength, impenetrable by hand-held pencil and repel an impact equal to 70 (230) ft. lbs. without fracture or tear when impacted by 3-1/4" diameter, 5 lb. free-falling ball per UL 972.

L. Translucent structural sandwich panel shall be a true sandwich panel of flat fiberglass sheets bonded to a grid core of mechanically interlocking I-beams and shall be 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 and mullions shall not exceed 4 for each 40 sq. ft. of panel, nor shall they be more than 3/36" in width.

N. Panels and aluminum perimeter frame shall be pre-assembled where practical and sealed at the factory. Panels should be shipped to the job site in rugged shipping units, ready for erection.

O. PERIMETER CLOSURE SYSTEM, BATTENS AND ALUMINUM FINISHES:

1. Closure system shall be extruded 6063-T6 and 6063-T5 aluminum clamp-tite screw type. Curved closure system may be roll formed. (Thermal break system optional for walls.)

2. Aluminum closures to be supplied with 300 series stainless steel screws (excluding final fasteners to building) and shall be factory sealed to the panels. Aluminum battens and cap plates shall be field installed.

3. All exposed aluminum to be (mill) (architectural corrosion resistant finish which meets the performance requirements of AAMA 2604, color to be selected from manufacturer's standards.)

4. Flexible sealing tape shall be manufacturer's standard pre-applied to serrated edges of closure system at factory under controlled conditions.

Part 3 EXECUTION

3.1 EXAMINATION

Do not install systems until conditions adversely affecting installation and performance have been corrected.

3.2 PREPARATION

The general contractor shall prepare openings including isolating dissimilar materials from aluminum system which may cause damage by electrolysis, and shall provide temporary enclosures if required.

3.3 INSTALLATION:

A. The installer shall erect translucent panel system in strict accordance with approved shop drawings as supplied by manufacturer, including fastening and sealing. All surfaces shall be cleaned before sealants are applied.

B. Secure non-moveable joints and accommodate thermal and mechanical movements.

C. If required, insure weep holes are correctly installed.

D. After other trades have completed work on adjacent material, inspect translucent panel installation and make any adjustments necessary to ensure proper installation and weather-tight conditions.

E. All staging and lifts required for the complete panel system installation and field measuring shall be provided by and maintained by the general contractor.

3.4 CLEANING

Clean panel system, both sides, after installation according to manufacturer's recommendations.

End of Section 08952