Alunar® Coating System

Interlock® Roofing offers a highly durable aluminum roofing product available in a range of different colors, opening up an extensive palette for homeowners and designers. Interlock Lifetime Metal Roofing Systems are exclusively protected for a lifetime by the Alunar® Coating System embedded with TEFLON™ Surface Protector provides homeowners the ultimate in durability and protection from stains, moisture, and organic debris.

The Interlock® Roof featuring the Alunar® Coating System

Alunar® Coating System -TEFLON™ Surface Protector image Alunar® Coating System Image

Interlock’s cool roof coating technology applied on a metal roof can greatly reduce heating and cooling costs for your residential property.

All Interlock Metal Roofing Systems are coated with the Alunar Coating System embedded with Teflon Surface Protector.

Interlock’s reflective surface actually reduces home’s temperature during summertime heat, saving you up to 25% on your cooling costs†.

All Interlock® Metal Roofing products utilize a unique low gloss matte finish technology.

Energy-Efficient Alunar® Coating System




  • Mitigates Urban Heat Island Effect
  • Cool Roofing
  • Emits solar heat from buildings
  • Reflects solar energy
  • Reduces building cooling expenses



alunar system


Alunar® Coating System Advantage

  • Formulated with ceramic IR reflective pigmentation to meet high and low-slope Energy Star specifications
  • Environmentally friendly
  • CRRC (Cool Roof Rating Council) Rated
  • Harder and more flexible than other premium PVDF coatings on the market
  • Cool Roof pigments deflect UV rays to lessen the heat island effect
  • Outstanding Protection from acid rain and corrosive environments
  • LEED 29 standards compliant
  • Excellent color retention and resistance to chalking and fading
  • Energy Star® Rated (US only)
  • Available in a wide variety of colors



Robert Scichili

Robert Scichili Associates, Inc.

In my 48 years of experience in the metal roofing industry (21 years with Desoto, 10 years with Morton International, 6 years with BASF and 10 years with 3M), it is most unique to find a company who is constantly striving to provide roofing products that live up to claims that are being made to customers.From the very moment the Interlock Roofing System is applied to a home the customer experiences excellent installation and a very unique surface design all applied to the finest metal available. All these are provided with the promise of great durability and sustainability and a low maintenance roofing system.The use of Alunar(r) coating systems, which have a superior record of color fastness, chalk resistance and literal fusion like adhesion is the finest coating system anyone can provide. But, Interlock Roofing goes even further to employ the addition of a “Teflon” surface protector to the coating system, which no other company does.Teflon has been a trusted surface protector by homeowners for decades and you are now getting the utmost in performance from a company that cares.

*Independent testimonial from an industry expert. Robert worked as Director of Product Innovation Services for LO, Business Development Manager for the Industrial Coatings Division for BASF Corporation and is a founding Board Member for the Cool Metal Roofing Coalition.




Federal Income Tax Credits and Other Incentives for Energy Efficiency

All residents of the United States are eligible for Energy Efficiency Federal Tax Credits of up to $500.

Cool Roof Rating Council

The following Alunar® coatings are CRRC rated and available for Title 24 of the California Code of Regulations: California’s Energy Efficiency Standards for Residential and Non-residential Buildings.


Alunar® Coating System Colors


For more information about Alunar® Coating System, call us today!
+1(808) 793-4969 Mon – Fri: 09:00 – 18:00 and Sunday by Appointment