PROJECT: Abovenet
LOCATION: San Francisco, CA
ARCHITECT: Skidmore, Owings & Merrill LLP
GENERAL CONTRACTOR: Hathaway-Dinwiddie Construction Company
CONTRACTOR: N.V. Heathorn Inc.
MATERIALS: UNA-CLAD® UC-3 Double-Lock, .032 Aluminum, Net Silver
Hylar 5000™/Kynar 500® finish by Valspar
The UNA-CLAD® UC-3 is a Double-Lock Standing Seam roofing system
that provides a traditional look and allows mechanical seaming to be utilized
to enhance the architects design needs while meeting current wind-load designs
for architectural metal roofing. The UC-3 roofing system offers the designer
the ability to design or specify various radius roof profiles. Concealed fasteners
and patented stainless steel slotted clips allow for expansion and contraction.
It is recommended that UC-3 panels be installed over a solid substrate such
as plywood and an underlayment of 30# felt. The UC-3 roofing system is available
in 24 and 26 gauge painted galvanized steel, .032 painted or anodized aluminum,
and 16 oz. or 20 oz. Architectural Grade Sheet Copper. Heavier gauges, narrower
widths, and embossing minimize oil canning. Contact Firestone Metal Products
for radius capabilities.
Note: Oil canning is not a cause for rejection.
Features and benefits
- UL 90 rated in a wide variety of substrates
- ASTM E283-91 air infiltration
- ASTM E330-90 structural performance
- ASTM E331-96 water penetration
- ASTM E1646-95 water penetration
- ASTM E1680-95 air leakage
- ASTM E1592-98 uniform static air pressure
- UL 263 & UL 790 class A fire rating
- UL 2218 class 4 hail rating
- Load/Span charts available
- Available for radius applications
- Miami-Dade County approved
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