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From the hot, damp, salt-laden air of
tropical islands to the frigid winds and
heavy snows of the arctic interior, Zip-Rib
roofing systems have proven their integrity
and performance for nearly four decades,
combining workhorse reliability and design
versatility. The oldest structural profile
incorporating concealed clips, Zip-Rib is
the world's most thoroughly tested and
developed structural standing-seam
roofing system.
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| Uncompromising Performance
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Stringently tested in the laboratory and
field to assure superior performance, Zip-
Rib establishes the industry benchmark:
- Carries Dade County Notice of
Acceptance
- Conforms to FM-4471 Class 1 Roof
Assembly
- Carries the UL 90 wind uplift rating in
steel and aluminum
- Tested in-house with a state-of-the-art
uplift chamber in accordance with
ASTM-E1592 for positive and negative
load resistance
- Passes severe static and dynamic wind
and water tests (ASTM-E1680, ASTME1646,
AAMA 501-83)
- Carries the UL Class A fire rating
- Classified under UL CETW category for
use in dozens of fire constructions
- New York City MEA approval in
aluminum and steel
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| Accommodating Versatility
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Zip-Rib factory-formed panels are
engineered for the design flexibility
architects require, and can be used on a
wide spectrum of construction, from open
purlin to metal deck to wood substrates.
Available in standard factory lengths up to
105 feet, they have also been formed on-site
in spans as long as 290 feet, and in most
cases, full-length ridge-to-eave panels
eliminate the need for end laps.
Zip-Rib panels accommodate the most
complex roof configurations -- even curved
surfaces -- allowing smooth transitions
between roof planes and between the roof
and other building elements. A variety of
end panels and ridge covers cap off the most
complex roof design.
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Merchant & Evans provides Zip-Rib guide
specifications and CAD details in various
formats on computer disk, and our Zip-Rib
Design Guide (see box) provides technical
data specific to Zip-Rib design considerations.
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Zip-Rib manufactured from 16-oz.
copper, aging to a natural patina.
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| EXCEPTIONAL DURABILITY |
The 2.5-inch machine-sealed ribs
strengthen the overall panel structure and
provide an impenetrable weather barrier
against rain, wind, snow and ice, as
confirmed by over 38 years of installed
service.
Concealed floating clip attachments, available
in a variety of configurations to meet
any substrate conditions, do away with
penetrating fasteners at structural supports
and side laps. The clips allow the panels to
expand and contract freely in response to
temperature variations while remaining
resistive to wind uplift forces.
While the minimum recommended slope is
0.5 inch per foot, shallower slopes have
been used successfully without any
compromise of watertight performance.
However, lower-than-recommended slopes
make roof penetrations difficult to seal.
Zip-Rib is virtually maintenance free.
Merchant & Evans recommends a yearly
inspection by the owner to ensure free
drainage and proper functioning of flashing.
Available in standard 12- and 16-inch
widths, Zip-Rib panels offer a choice of
18-, 20-, 22- or 24-gauge steel and 0.032-,
0.040- or 0.050-inch aluminum, in smooth
or embossed textures, with custom
materials such as zinc, copper, lead coated
copper, and stainless steel available on a
job-to-job basis.
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| Zip-Rib Design Guide |
Our engineers have developed the
expansive Zip-Rib Design Guide to
answer a variety of common technical
questions. The guide covers all aspects
of Zip-Rib installation, including
corrosion data and details for flashing,
skylights, eaves and gutters, expansion
joints, and thermal fixed joints, and
provides specifications and all charts and
tables needed for engineering design calculations.
Also included are details of Zip-Rib
panels and the numerous clips, anchors,
closures, tracks and fasteners required
to evaluate and design a complete
structural system.
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| Zip-Rib IS THE WORLD'S |
| MOST THOROUGHLY |
| TESTED AND DEVELOPED |
| STRUCTURAL STANDING- |
| SEAM ROOFING SYSTEM. |
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