Appaloosa Branch Library First U.S. Application of PPG’s New DURANAR® VARI-Cool™
The Appaloosa Branch Library in Scottsdale, Arizona is the first building
constructed with color-shifting
DURANAR® VARI-Cool™ coatings by PPG Industries.
VARI-Cool coatings, the latest in the
DURANAR® ULTRA-Cool® family of products by PPG, is a pearlescent coating
with superior durability, color-fastness, and gloss retention. Available in 17
pre-formulated standard tints, this polychromatic coating delivers a palette of
vibrant color change, while offering exceptional color stability, chalk
resistance, abrasion resistance, chemical resistance and flexibility against
weathering in most environments for decades. The pigment particles in VARI-Cool
coatings create color travel, allowing color to change subtly depending on the
viewing angle and on how light refracts across a particular area. On the
Appaloosa Branch Library, the appearance of the coating changes from a dark
green to silver to mauve projecting a light gray-green tint that matches plants,
sand and the surrounding desert landscape.
DURANAR VARI-Cool coatings are a premium fluoropolymer coating system
created on the foundation of a factory-applied Kynar 500® or Hylar 5000® resin
system, which are well known as best-in-class coatings. An excellent choice for
roof panels, building panels, curtain walls, aluminum composite parts, store
fronts, accent trim and corporate signage, this coating is the only coil-formed
polychromatic coating that integrates energy-saving ULTRA-Cool
infrared-reflective technology. The cooling effects of this IR technology offer
potential benefits such as reduced air conditioning costs for commercial and
residential construction, less product expansion and contraction, plus improved
comfort levels for building occupants. The pigments reflect the sun’s energy
using the ULTRA-Cool coatings, which is expected to help the Appaloosa Branch
Library use 32 percent less energy than comparably sized libraries.
Because of the use of ULTRA-cool coatings, DURANAR VARI-Cool coatings meet
industry standards and regulations including LEED and ENERGY STAR® criteria for
steep slope cool roofing. VARI-Cool is just the latest example of PPG’s global
commitment to creating innovative, sustainable products.