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SECTION 04 42 00

STONE CLADDING

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** NOTE TO SPECIFIER ** Bellcomb, Inc.; stone cladding, structural composite panels, structural lightweight stone panels.
.
This section is based on the products of Bellcomb, Inc., which is located at:
9200 10th Ave. N.
Minneapolis, MN 55427
Tel: 763-537-0200
Email: request info ()
Web: www.bellcomb.com
[ Click Here ] for additional information.
Bellcomb is a leading global manufacturer of composite panel solutions. We specialize in the following:
Lightweight High Performance Panels and Panel Systems
High performance skin materials
Lightweight Core Materials
Customer Driven Design Engineering
Founded in 1989, Bellcomb grew to become a major supplier of lightweight structural composite panels to industry. In 2009, it acquired a small stone fabrication company that produced lightweight stone panels with the vision of growing that business into a major lightweight stone panel supplier.
Bellcomb's extensive experience and knowledge in bonding technology and composite panel construction allowed it to vastly improve the approach and method of production, efficiency, quality control and system design used to deliver lightweight stone panels to the market.
By 2011, Bellcomb was operating the stone business out of a 125,000 square foot facility with the most modern of stone polishing, cutting equipment and automation capable of producing millions of square feet of lightweight stone panels a year.
As Bellcomb's lightweight stone business grew exponentially, in 2014, Bellcomb divested itself of the composite panel business. Today it is totally focused on the fast growing lightweight stone panels. But it retained the ability to produce its own aluminum honeycomb and honeycomb panels to support its lightweight stone panel business.

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Natural-stone, honeycomb-reinforced panel assemblies including anchoring systems and accessories for the following applications:

** NOTE TO SPECIFIER ** Delete items below not required for project.

1. Exterior cladding.

2. Interior cladding.

3. Interior fabrications.

4. Elevator cab walls.

1.2 RELATED SECTIONS

** NOTE TO SPECIFIER ** Delete sections below not relevant to this project; add others as required.

A. Section 04 40 00 - Stone Assemblies .

B. Section 05 40 00 - Cold-Formed Metal Framing.

C. Section 07 25 00 - WeatherBarriers.

D. Section 07 60 00 - Flashing and Sheet Metal.

E. Section 07 90 00 - Joint Protection.

F. Section 09 25 23 - Lime Based Plastering.

1.3 REFERENCES

** NOTE TO SPECIFIER ** Delete references from list below not required by text of edited section.

A. ASTM International (ASTM):

1. ASTM E 84 - Standard Test Method for Surface Burning Characteristics of Building Materials.

2. ASTM E 283 - Standard Test Method for Determining Rate of Air Leakage.

3. ASTM E 330 - Standard Test Method for Structural Performance of Exterior Windows, Doors, Skylights and Curtain Walls by Uniform Static Air Pressure Difference.

4. ASTM E 331 - Standard Test Method for Water Penetration.

5. ASTM E 1886 - Standard Test Method for Performance of Exterior Windows, Curtain Walls, Doors, and Impact Protective Systems Impacted by Missiles and Exposed to Cyclic Pressure Differentials.

6. ASTM E 1996 - Standard Specification for Performance of Exterior Windows, Curtain Walls, Doors, and Impact Protective Systems Impacted by Windborne Debris in Hurricanes.

7. ASTM E 2485 - Standard Test Method for Freeze/Thaw Resistance of Exterior Insulation and Finish Systems (EIFS) and Water Resistive Barrier Coatings, Method A (60 Cycles).

B. Florida Building Code Testing Application Standards (TAS): Dade County Protocol.

1. TAS 201 - Impact Test Procedures.

2. TAS 202 - Criteria For Testing Impact and Nonimpact Resistant Building Envelope Components Using Uniform Static Air Pressure.

3. TAS 203 - Criteria For Testing Products Subject To Cyclic Wind Pressure Loading.

C. American Architectural Manufacturers Association (AAMA): AAMA 501.1 - Standard Test Method For Metal Curtain Walls For Water Penetration Using Dynamic Pressure.

D. Marble Institute of America (MIA).

E. National Fire Protection Association (NFPA) 285 - Standard Fire Test Method for Evaluation of Fire Propagation Characteristics of Exterior Non-Load Bearing Wall Assemblies Containing Combustible Components.

1.4 SUBMITTALS

A. Submit under provisions of Section 01 30 00 - Administrative Requirements.

B. Product Data: Manufacturer's data sheets on each stone type to be used, including:

1. Preparation instructions and recommendations.

2. Storage and handling requirements and recommendations.

3. Installation methods.

4. Cleaning and maintenance instructions.

C. Shop Drawings: Provide shop drawings indicating details of construction, fabrication, installation of stone cladding including but not limited to anchorage details, relationship with adjacent construction and as follows:

1. Identification nomenclature to be marked on the back of each panel and coincide with shop drawings.

2. Include elevations and details.

3. Include dimensions and profiles of stone units.

4. Show locations and details of joints.

5. Show locations and details of anchors.

D. Sealant Product: For Architect approval; tested for compatibility with the stone facing specified.

** NOTE TO SPECIFIER ** Delete if not required.

E. Verification Samples:

1. Submit two sets of samples for each stone type, exhibiting the full range of color characteristics expected, 12 inches x 12 inches (300 mm x 300 mm), in each color and finish specified.

2. In the case of more variegated stones, color photos shall be submitted in addition to the number of samples to show the full range of color and markings to be expected.

1.5 QUALITY ASSURANCE

A. Single Source Requirements: To the greatest extent possible the components of the stone cladding system shall be from a single manufacturer.

B. Manufacturer Qualifications:

1. Manufacturer shall have a minimum of 10 years demonstrated capability producing honeycomb reinforced, natural stone panel system.

2. Proven independent laboratory tests verifying system performance for building code requirements.

C. Installer Qualifications: Installer who has specialized in the installation of similar work, determined by Contractor, with demonstrated experience is deemed acceptable by the manufacture.

** NOTE TO SPECIFIER ** Include a mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up on a large project might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.

D. Mock-Up: Provide a mock-up for evaluation of surface preparation techniques and application workmanship.

1. Finish areas designated by Architect.

2. Do not proceed with remaining work until workmanship, color, and finish are approved by Architect.

3. Refinish mock-up area as required to produce acceptable work.

1.6 PRE-INSTALLATION MEETINGS

A. Convene minimum two weeks prior to starting work of this section.

1.7 DELIVERY, STORAGE AND HANDLING

A. Deliver, store and handle materials and products in strict compliance with manufacturer's instructions and recommendations and industry standards.

1. Do not use materials that may cause staining or discoloration for blocking or packing.

2. Deliver material in manufacturer's original container, unopened, undamaged and have manufactures labeled intact. Non-container materials are to be handled and stored in a way that does not deform or impact its integrity or functionality.

B. Store materials within absolute limits for temperature and humidity recommended by manufacturer. Protect from damage.

1. Protect from exposure to inclement weather and air borne or liquid contaminates.

C. Store products in manufacturer's labeled packaging until ready for installation.

1.8 PROJECT CONDITIONS

A. Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits.

1.9 SEQUENCING AND SCHEDULING

A. Pre-Installation Meeting: Convene a pre-installation meeting prior to commencing work of this section. The purpose of the meeting shall be to review methods and sequence of all stone cladding work, to coordinate this work with related and adjacent work and to establish procedures to maintain optimum working conditions.

1.10 WARRANTY

A. Warranty: Provide manufacturer's standard 10 year limited warranty.

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Acceptable Manufacturer: Bellcomb, Inc., which is located at: 9200 10th Ave. N.; Minneapolis, MN 55427; Tel: 763-537-0200; Email: request info (); Web: www.bellcomb.com

** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.

B. Substitutions: Not permitted.

C. Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.

** NOTE TO SPECIFIER ** Delete if not required.

2.2 NATURAL-STONE HONEYCOMB-REINFORCED PANELS (STRATA PANELS)

A. Natural-Stone Honeycomb-Reinforced Panels: STRATA PANELS as manufactured by Bellcomb Technologies.

1. System Description: Exterior, natural stone honeycomb reinforced wall panel system anchored to backup support structure with proprietary channel and rail wall panel attachment hardware.

2. Materials: Natural stone bonded to aluminum honeycomb (aircraft or marine quality) core panel using high strength epoxy resin.

3. Nominal Panel Thickness: 1 inch.

4. Face Material Thickness: 1/4 inch (6.35 mm) +/- 1/16 inch (1.6 mm) natural stone.

5. Backer: 3/4 inch (19 mm) or 1/2 inch (13 mm) aluminum honeycomb core bonded together using high strength epoxy resin.

6. Hardware Attachment: As provided and recommended by manufacturer.

B. Performance Requirements:

1. High Velocity Hurricane Zone, (HVHZ): Dade County Protocol Product Compliance.

a. Miami-Dade County Notification No.: ATIWW14003. Granite Stone Cladding.

b. Report available from Manufacturer titled "TAS 201, TAS 202, TAS 203 Test Report" Test Report No.: D9737.01-602-18, dated 10/29/2014 prepared by Architectural Testing, Inc., Schofield, WI 54476.

2. Water penetration (ASTM E 331): No leakage at a minimum static air pressure differential of 10 psf and AAMA 501.1 dynamic water abuse.

3. Freeze/Thaw Resistance (ASTM 2485 - Method A (60 Cycles) Granite Stone Cladding: No cracks or damage to the surface.

a. Report available from Manufacturer titled "ASTM 2485 Test Report" Test Report No.: D3869.02-201-44, dated 06/26/2014 prepared by Architectural Testing, Inc.

4. Fire Resistance (ASTM 84): Flame Spread - 0. Smoke Developed - 120.

a. Report available from Manufacturer titled "Test Report" Test Report No.: D3391.08-121-24, dated 03/12/2014 prepared by Architectural Testing, Inc., York Pennsylvania.

C. Accessories:

1. Shims: Plastic or neoprene glazing shims.

2. Attachment System: Extruded structural aluminum channel system, clips and inserts.

3. Sealants: Tested for compatibility with the stone facing specified.

D. Stone Types and Finishes:

** NOTE TO SPECIFIER ** Select finishes for each stone type specified by duplicating structure of subparagraphs below. Fill in blank below or delete line as applicable. Delete stone types not required.

1. Stone Type: Granite.

2. Stone Type: Marble.

3. Stone Type: Limestone.

4. Stone Type: Travertine.

5. Stone Type: Sandstone.

6. Stone Type: Quarzite.

7. Facing Type: Porcelain.

8. Stone Type: ______.

9. Stone Type: As indicated on Drawings.

** NOTE TO SPECIFIER ** Delete finishes not required.

10. Stone Finish: Polished.

11. Stone Finish: Honed.

12. Stone Finish: Bush hammer.

13. Stone Finish: Antique.

14. Stone Finish: Sandblasted.

15. Stone Finish: As indicated on Drawings.

** NOTE TO SPECIFIER ** Delete if not required.

E. Exterior Curtain Wall Assembly: NFPA 285 Compliant.

1. Natural-Stone Honeycomb-Reinforced Panels (STRATA PANELS) have been tested as part of a curtain wall assembly and have met the Conditions of Acceptance of NFPA 285. The Acceptance is specific only to that wall assembly constructed and tested.

a. Report available from Manufacturer titled "NFPA 285 Test Report" Test Report No.: D3391.01-121-24, dated 05/23/2014 prepared by Architectural Testing, Inc., York Pennsylvania.

** NOTE TO SPECIFIER ** Delete if not required.

F. Interior Panels:

1. Decorative Elevator Cab Wall Panels: Refer to drawings.

2. Architectural Facing Wall Panels: Refer to drawings.

PART 3 EXECUTION

3.1 PREPARATION

A. Examine surfaces and conditions with Installer present. Do not proceed with installation until substrates have been properly prepared and deviations from manufacturer's recommended tolerances are corrected. Commencement of installation constitutes acceptance of conditions.

B. Prepare substrates using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions. Verify substrate and framing is acceptable for product installation.

C. If preparation is the responsibility of another installer, notify Architect in writing of deviations from manufacturer's recommended installation tolerances and conditions.

D. Field Measurements:

1. Verification of structure dimensions/openings by field measurements required prior to fabrication of stone cladding panels.

2. Inspect primary and secondary wall framing to verify that all girts, angles, channels, studs, sheathing, anchorage and other structural panel support members and hardware have been installed in conformance with the following tolerances:

a. 1/4 inch (6 mm) maximum surface deviation in any 20 feet (6096 mm) length, vertically or horizontally.

b. 1/4 inch (6 mm) maximum deviation in any building elevation.

3. Record field measurements on shop drawings.

4. Coordinate field measurements, fabrication and construction schedule with manufacture and Contractor to avoid delays.

3.2 INSTALLATION

A. Install in accordance with manufacturer's written instructions and recommendations.

B. Install stone honeycomb cladding system with joints uniform in appearance and stone edges and faces aligned to tolerances indicated.

1. Vertical: Variation lines and surfaces of wall not to exceed: 1/4 inch in 10 feet (6.35 mm in 305 cm).