AlumaKlad
Specifications
Scope: Provide labor,
equipment, materials and services shown on the drawings, as herein specified
and/or required by job site conditions.
Materials
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Pre-painted
architectural roofing and/or sheet metal accessories shall be AlumaKlad,
as manufactured by Integris Metals.
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The material shall be
48 inches wide and up to 144 inches long. Material is available in
thicknesses of .032, .040, .050 and .063.
-
All materials shall
be 3105-H24 aluminum sheet or coil, commercial quality, primed and
finished one side with BASF Fluoroceram®, full-strength Kynar® or Hylar®
5000 coating 1.0 +/- .1 mil total dry film thickness.
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A washcoat of .3 mil
dry film thickness shall be applied to the reverse side.
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The pre-painted,
finished side shall be coated with a factory installed, strippable film
for protection of the finished surface during fabrication, shipping and
installation.
-
The material shall be
protected from heat and direct sunlight to prevent possible
deterioration of the strippable film and the finished coating.
Performance Criteria
The 70% Kynar®
500- or Hylar® 5000-based finish coating shall conform to the following
tests and standards:
Hardness: F
Minimum, NCCA Technical Bulletin II-12.
Adhesion:
Cross Hatch – 1/18 inch (no removal): NCAA Technical Bulletin II-5.
Formability: 180 degree 2T Bend (no cracking or removal): ASTM D522.
Reverse
impact: No Removal When Taped: NCCA Technical Bulletin II-6 (impact force =
70 in./lbs.).
The base metal shall
conform to the following tests and standards.
Minimum
Yield 17,000 PSI, ASTM B209.
Installation
AlumaKlad
shall be cut, formed, nailed or riveted using conventional hand or power
tools. Fabricate and install in accordance with drawing and specifications
using recognized sheet metal practices. Maintain sharp, clean, properly
dressed and closely aligned cutting edges. To avoid damage, exercise care
during fabrication and installation.
Use color-matched,
touch-up paint and rivets where required.
Maintenance
Maintenance
usually is not required. AlumaKlad can be cleaned with mild soap and water,
and requires no other maintenance.
Warranty
Material shall
require a written 30-year, non-prorated warranty covering fading, chalking
and integrity. The warranty shall include labor and materials through the
thirtieth year.
Material shall not show a
color change greater than 5 NBS color units per ASTM D2244, and not show
chalking in excess of 8 per ASTM D659.
