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SECTION 07 42 13 –Preformed (Manufactured) Flat Wall
Panel Systems
PART
1 – GENERAL
1.01 SECTION
INCLUDES
The work includes, but
is not necessarily limited to, furnishing and installation of all preformed
metal walls, and accessories as indicated on the drawings and specified
herein.
1.02 RELATED SECTIONS
A. Structural Steel
Supports: Section 05100
B. Structural Metal
Roof and Floor Decking: Section 05300
C. Miscellaneous
Fabricated Steel: Section 05500
D. Structural Lumber
Supports: Section 06100
E. Structural Glue
Laminated Lumber Supports: Section 06181
F. Thermal Insulation:
Section 07200
G. Fireproofing:
Section 07250
H. Sheet Metal
Flashings and Trim Section 07600
I. Joint Sealants not
specified herein: Section 07900
J. Finish Painting not
specified herein: Section 09900
1.03 PERFORMANCE
REQUIREMENTS
Panels that do not
meet the following ASTM standards are not acceptable.
Performance testing must be proprietary to
manufacture’s specific panel system.
A. Testing and
Certification
1. Air Infiltration:
Panel system to meet the following standard when tested in accordance with
ASTM E 283-04
a. With recommended
joint sealant: 0.00 CFM (No Leakage) at 6.24 psf.
2. Water Penetration:
Panel system to meet the following standard when tested in accordance with
ASTM E 331-00
a. With recommended
joint sealant: 0.00 CFM. (No Leakage) at15.0 psf.
3. Structural
Performance: Individual panel meet the following standard when tested in
accordance with ASTM E 72
a. Using recommended
fastener configuration for maximum wind load (see manufacture’s recommended
fastener chart): average ultimate load (held for 1 minute) must exceed 115
lbs.
b. Manufacture must
provide a transverse load table utilizing data attained from ASTM E 72
structural testing.
4. Fastener Pull
Through: Panel steel and fasteners to meet the following standard when
tested in accordance with ASTM E 1761a
a. Using the
recommended fastener (#8 modified truss head / phillips wafer head screw)
average pull through or screw failure must exceed 875lbs.
5. Metposite
tm Core E-84 panels meet ASTM E-84
Flame spread 0 or less, Smoke development <5
6. Metposite
tm Iso panels ASTM E84 Flame spread 25
or less, Smoke development <250
6. Zincalume®
substrates ASTM A 792 and A250
7. Aluminum substrates
meet ASTM B-209
8. Exterior finish
includes a 0.2 mil thick corrosion-resistant primer and a 0.8 mil thick
finish coat of polyvinylidine fluoride (PVF2), full 70% Kynar 500®/Hylar
5000® for a total 1.0 mil dry film thickness with a specular
gloss of 10-15% when tested in accordance with ASTM D-523-89 at 60o.
9. Protective coating
conforms to ASTM A792, AZ50 (Zincalume®).
1.04 SUBMITTALS
A. Product Data
1. Submit
manufacturer’s technical product data, installation instructions and
recommendations for each type of wall panel required. Include data
substantiating that materials comply with requirements.
B. Samples
1. Prior to ordering
products, submit manufacturer’s standard color samples for
architect’s/engineer’s selection.
2. Prior to starting
work, submit (quantity) 12 inch by 12 inch long panel samples showing
shape and are representative color chip for architect’s/engineer’s
acceptance.
C. Shop Drawings
1. Show panel layout,
trim installation, and panel attachment.
1.05 QUALITY ASSURANCE
A. Installer’s
Qualifications
1. Installation of
panels and accessories by installers with a minimum of 5 years experience.
2. Applicator must be
approved by panel manufacturer in writing.
B. Manufacture’s
Qualifications
1. Manufacturer shall
have a minimum of 5 years experience supplying flat metal wall panels to the
region where the work is to be done.
2. Panel manufacturers
without full supporting literature, flashings & details guides, guide
specifications and technical support shall not be considered equal to the
specified product.
C. Regulatory Agency
Requirements
1. Comply with UBC and
local building code requirements if more restrictive than those specified
herein.
1.06. PRODUCT DELIVERY, STORAGE AND HANDLING
A. Keep panels dry.
B. Protect against
damage and discoloration.
C. Handle panels with
non-marring slings.
D. Do not bend panels.
E, Store panels above
ground, with one end elevated for drainage.
F. Protect panels
against standing water and condensation between adjacent surfaces.
G. If panels become
wet, immediately separate sheets, wipe dry with clean cloth, and allow to
air dry.
H. Remove all
strippable film coating immediately after installation and do not allow it
to remain on the panels in extreme cold, heat or in direct sunlight. (see
manufacture’s installation instructions)
1.07 WARRANTY
A. Manufacture’s
Warranty
1. Metposite LLC
warrants its Metposite tm
STD, STD-DRI-RS tm,
Metflush tm
and Metflush II tm
(ISO, Pro-Form tm,
PRO tm
or Core
E84 backed) panels to be free of manufactures
faults and defects for a period of ( ) years, including materials
manufacturer’s 20-year paint warranty on painted products. (See sample
warranty in manufacture’s literature)
B. Contractor’s
Warranty
1. Warrant panels,
flashings, sealants, fasteners and accessories against defective materials
and/or workmanship, to remain watertight and weatherproof with normal usage
for ( ) years following project substantial completion date.
1.08 PROJECT CONDITIONS
A. Examine the
condition and substrates in which metal panel work is to be installed.
Substrate shall be installed level, flat and true to avoid panel stress.
B. Field measurements
shall be taken prior to fabrication of panels.
C. Proceed with panel
installation only after satisfactory conditions are met.
PART 2 – PRODUCTS
2.01 ACCEPTABLE
MANUFACTURER
A. Metposite LLC PO Box
156, Hubbard, OR 97032 phone 503.981.5900 fax 503.981.5901 e-mail
info@metposite.com
1. Panel: Metposite
tm STD and STD-DRI-RS flat-faced panel
with fully bonded, weather resistant
(ISO and Pro-Form tm)
or repellent (PRO tm
& Core
E84) integral stiffener. Wet joint panel
system.
2. Panel: Met-Flush
tm and Metflush II
tm flat-faced panel
with fully bonded, water resistant, weather resistant (ISO
and Pro-Form tm)
or repellent (PRO
tm &
Core
E84)
integral stiffener. With female/male leg receiver to form positive adjoining
panel system.
3. Typical vented
Metposite tm
STD, STD-DRI-RS tm,
Met-Flush tm
or Metflush II tm
panels to be perforated with .125” holes spaced inline or staggered .25” on
center apart. The pattern and percentage of surface area per design
requirements. (Typical: Full face or 3” wide strips full length of panel.)
2.02 MATERIALS
A. Panels
1. Base Metal:
a. Material
1.
Steel conforming to ASTM A792 Zincalume®, minimum yield 40,000
psi., thickness [choose one] 22 gauge (standard), 24, 20, gauge
(non-standard).
2.
Panels are also available [choose one] .032, .040 (limited colors
may apply), .050 aluminum with a Kynar 500® or anodized finish.
b. Protective Coating:
1. Conform to ASTM
A792, AZ50 (Zincalume®).
c. Fully bonded
stiffener material
1.
ISO
2. Pro-form
3
PRO tm
4.
Metposite Core
E-84
2. Configuration.
General: Provide
factory formed metal wall panels with integral stiffener designed to be
mechanically attached to supports using concealed fasteners. Include
accessories required for a concealed fastener water tight or rain screen
application.
a. Flat faced wall
panels: Formed with vertical & horizontal panel edges and flat pan between
panel edges with flush joints between panels.
b. Water resistant
closed cell foam stiffener (ISO or Pro-form) fully bonded to concealed side
of panel
c. Water repellent
stiffener (PRO or Core E-84) fully bonded to concealed side of panel
d. Bottom and top edges
concealed fastener through panel flange.
e. Side edges butt
panel to panel in concealed, continuous vertical drainage channel with joint
sealer.
f. Panel coverage:
refer to drawings for panel sizes
g. Panel depth [choose
one] ISO 1” / Pro-form 1 3/8”
/ PRO 1” or 1/2”,
Core E-84 1” or 1/2”
3. Exterior Finish: [choose
one]
a. Zincalume®
Plus or G-90 Galvanized
b. Exterior finish
includes a 0.2 mil thick corrosion-resistant primer and a 0.8 mil thick
finish coat of polyvinylidine fluoride (PVF2), full 70% Kynar 500®/Hylar
5000® for a total 1.0 mil dry film thickness with a specular
gloss of 10-15% when tested in accordance with ASTM D-523-89 at 60o.
supplied over Zincalume base metal alternate finishes.
c. DuraTechTM
mx metallic finish, consisting of a baked-on acrylic primer (0.2
mil.) and a baked-on polyvinylidine fluoride finish coat (0.8 mil.) totaling
a nominal 1.0 mil. dry film thickness
4. Interior Finish:
a. Primer coat
material: Corrosion-resistant primer; primer coat dry film thickness: 0.15
mils; finish coat material: polyester paint, finish coat dry film thickness:
0.35 mils.
b. Total interior dry
film thickness: 0.50 mils.
c. Color: Off-White.
5. Color: [choose one]
a. Manufacturer’s
standard selection of not less than 20 colors.
b. Custom color as
selected by architect to be _____________.
B. Fabrication
1. Panels shall be
factory formed. Field formed or general shop formed panels are not
acceptable. Provide profiles and sizes indicated in drawings.
2. Form panel lines,
breaks, and angles sharp and true.
3. Fabricate panels to
include integral fully bonded stiffeners required to maintain flat face
surface fabrication tolerances.
4. Provide panels with
[choose one] smooth face, embossed.
C. Flashing
1. Material and Finish:
Match panels in base metal, color and gauge. Do not use lead or copper.
D. Sealants
1. Joint sealants and
fillers per section 07900
PART 3 – EXECUTION
3.01 EXAMINATION
A. Existing Conditions
1. Inspect installed
work of other trades and verify that such work is complete to a point where
this work may continue.
2. Verify that
installation may be made in accordance with approved shop drawings and
manufacturer’s instructions.
3.02 PREPARATION
A. Field Measurements
1. Verify prior to
fabrication.
2. If field
measurements differ from drawing dimensions, notify architect/engineer prior
to fabrication.
B. Protection
1. Treat, or isolate
with protective material, and contacting surfaces of dissimilar materials to
prevent electrolytic corrosion.
2. Protect work of
other trades against damage and discoloration.
C. Surface Preparation
1. Clean and dry
surfaces prior to applying sealant.
2. Install flashings
and other sheet metal to comply with requirements of section 07600.
3.03 INSTALLATION
A. Panels
1. Follow panel
manufacturer’s directions.
2. Do not stretch or
compress panel side-laps.
3. Secure panels
without warp or deflection.
B. Fasteners
1. Per manufacturer
recommendation. (See transverse load requirements in performance
requirements of this section.)
C. Allowable Erection
Tolerances
1. Maximum alignment
variation: ¼ inch in 40 feet.
D. Panel Joints
1. Install joint
fillers and sealants where indicated and where required for a water
tight metal wall panel assembly..
E. Flashing
1. Follow
manufacturer’s directions and architect approved shop drawings.
2. Install flashings to
allow for thermal movement.
3. Remove strippable
protective film, if used, immediately preceding flashing installation.
D. Cutting and Fitting
1. Neat, square and
true. Torch cutting is prohibited where cut is exposed to final view.
2. Openings 6 inches
and larger in any direction: Fabricate and reinforce to maintain original
load capacity.
3.04 CLEAN UP AND CLOSE OUT
A. Panel Damage and
Finish Scratches
1. Do not apply
touch-up paint to damaged paint areas that involve minor scratches.
2. Panels or flashings
that have severe paint and/or substrate damage shall be replaced as directed
by the architect’s or owner’s representative.
B. Cleaning and
Repairing
1. At completion of
each day’s work and at work completion, wipe clean removing dirt and dust.
Do not allow fasteners, cuttings, filings or scraps to accumulate.
2. Remove debris from
project site upon work completion.
[End of Section] |
