074213MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts
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SECTION 07 42 13
METAL WALL PANELS
PART 1 GENERAL
1.1 SUMMARY
A. Section Includes: Metal panels, flashings, trims and girt system at masonry
sidewall of gymnasium as indicated on drawings
B. Related Sections: Section(s) related to this section include:
1. Section 07 53 23 Roofing
2. Section 07 92 00 Joint Sealants
1.2 REFERENCES
A. General: Standards listed by reference form a part of this specification section.
Standards listed are identified by issuing authority, abbreviation, designation
number, title or other designation. Standards subsequently referenced in this
Section are referred to by issuing authority abbreviation and standard
designation.
B. ASTM International:
1. ASTM E84 Flame Spread Class A
2. ASTM D1037 Stiffness and Durability
3. ASTM E72 Racking Design
4. AAMA 2603-98 Voluntary Specification, Performance
Requirements and Test Procedures for Pigmented
Organic Coatings on Aluminum Extrusions and
Panels
D. Sheet Metal and Air Conditioning Contractors' National Association (SMACNA):
"Architectural Sheet Metal Manual."
1.3 SUBMITTALS
A. Product Technical Data: For each type of product required, including
manufacturer's preparation recommendations, storage and handling
requirements, and recommended installation methods.
B. Shop Drawings: Showing methods of installation, plans, sections, elevations and
details of roof and wall panels, specified loads, flashings, vents, sealants,
interfaces with all materials not supplied by the metal panel system
manufacturer, and identification of proposed component parts and their finishes.
Do not proceed with fabrication prior to approval of shop drawings.
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C. Samples: Selection and verification samples for finishes, colors and textures.
Submit two complete sample sets of each type of panel, trim, clip and fastener
required.
D. Certificates: Product certificates signed by manufacturer certifying materials
comply with specified performance characteristics, criteria and physical
requirements.
E. Qualifications Statements: For manufacturer and installer.
1.4 CLOSEOUT SUBMITTALS
A. Operation and Maintenance Data: For installed products including maintenance
methods and precautions against cleaning materials and methods detrimental to
finishes and performance.
B. Warranty: Warranty documents required in this section.
1.5 QUALITY ASSURANCE
A. Manufacturer Qualifications:
1. Minimum of ten years of experience in manufacturing metal wall panel
systems.
2. Provider of products produced in a permanent factory environment with
fixed roll-forming equipment.
B. Installer Qualifications:
1. At least five years of experience in the installation of metal wall panels.
2. Employer of workers for this Project who are competent in techniques
required by manufacturer for installation indicated and who shall be
supervised at all times when material is being installed.
1.6 DELIVERY, STORAGE AND HANDLING
A. General: Comply with manufacturer’s current printed product storage
recommendations.
B. Delivery: Deliver materials in manufacturer’s original, unopened, undamaged
containers with identification labels intact.
C. Storage: Store materials above ground, under waterproof covering, protected
from exposure to harmful weather conditions and at temperature and humidity
conditions recommended by manufacturer. Provide proper ventilation of metal
panel system to prevent condensation build-up between each panel and trim or
flashing component. Tilt stack to drain in wet conditions. Remove strippable
plastic film before storage under high-heat conditions. Store products in
manufacturer's unopened packaging until just prior to installation.
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D. Handling: Exercise caution in unloading and handling metal panel system to
prevent bending, warping, twisting and surface damage.
1.7 WARRANTY
A. Special Exposed Panel Finish Warranty: Manufacturer's standard form PVDF
Fluorocarbon System Warranty for film integrity, chalk rating and fade rating in
which manufacturer agrees to repair or replace panels that show evidence of
deterioration within specified warranty period.
1. Warranty Period: 15 years from date of Substantial Completion.
PART 2 PRODUCTS
2.1 METAL WALL PANELS
A. Manufacturers:
1. Citadel Architectural Products; Panel 15
2. Mantech Architectural wall Panel Systems, Series 600
3. Wrisco Industries, Snip230-d-PF 2
B. Description: A composite panel made by laminating a textured aluminum skin to a
substrate of douglas fir exterior grade plywood.
C. Product Options:
1. Panel sizes: 4’x8’, 5’x10’ x 5/16”
2. Material:
a. Prefinished Textured Aluminum Face
b. Exterior Grade Douglas Fir Plywood Core
c. Primed Textured Aluminum Back
3. Finish: Polyester
4. Trim: One piece aluminum molded trim – ST603MX, ST201MX
5. Color: As selected by Architect from full range manufacturer’s color pallet,
Series A, B, and C.
2.2 STRUCTURAL PERFORMANCE
A. Structural Performance Criteria: <90 mph wind speeds with L/240 deflection.
2.3 ACCESSORIES
A. Fasteners and moldings as required for panel system's design by panel system
manufacturer. Fasteners shall be coated or stainless steel.
B. Weather Seals: Shall be Tremco® Spectrem® 2, applied per the sealant
manufacturer's
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instructions.
2.4 SOURCE QUALITY CONTROL
A. Source: Obtain metal wall panels, trim and other accessories from a single
manufacturer.
B. Quality Control: Obtain metal wall panels, trim and other accessories from a
manufacturer capable of providing on-site technical support and installation
assistance.
PART 3 EXECUTION
3.1 PREPARATION
A. Miscellaneous Framing: Install furring, angles, subpurlins, and other
miscellaneous wall panel support members and anchorage according to metal
wall panel manufacturer's recommendations.
3.2 METAL WALL PANEL INSTALLATION
A. General: Comply with panel manufacturer’s installation instructions including but
not limited to special techniques, interface with other work, and integration of
systems.
B. Fasten metal wall panels to a horizontal sub-girt system supports with concealed
clips at each standing-seam joint at location, spacing, and using proper
fasteners as recommended by panel manufacturer. The sub-girt system shall be
placed over the existing metal panel systems with shims at a minimum of 2-0"
maximum o.c. vertically. Sub-girt attachment shall penetrate the existing panels
and attach to the structural girt system. Add additional clips, sub-girts and angle
framing as required to meet the wind speed loading and deflection criteria
specified.
3.3 ACCESSORY INSTALLATION
A. General: Install accessories using techniques recommended by manufacturer
and which will assure positive anchorage to building and weather tight mounting.
Provide for thermal movement. Coordinate installation with flashings and other
components.
B. Flashing and Trim: Comply with performance requirements, manufacturer's
written installation instructions, and the SMACNA "Architectural Sheet Metal
Manual." Provide concealed fasteners where possible, and install units to true level.
Install work with laps, joints, and seams that will be permanently watertight.
3.4 CLEANING
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A. Remove temporary coverings and protection of adjacent work areas.
B. Repair or replace any installed products that have been damaged.
C. Clean installed panels in accordance with manufacturer’s instructions prior to
Owner’s acceptance.
D. Remove and lawfully dispose of construction debris from Project site.
3.5 PROTECTION
A. Protect installed product and finish surfaces from damage during construction.
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