Find a Rep
Your Rep

Articles & Resources

Technical Library

Total Value / Lifecycle Costing

Project Highlights

Building Industry Articles



KEE-Stone® NF 60 Flashing

  • UV Resistant & Energy Saving
  • Long-Lasting & Durable
  • Chemical Resistance

KEE-Stone NF 60 Flashing is a 60-mil thick, non-fleece back KEE (Ketone Ethylene Ester) thermoplastic flashing membrane with a lighter and more workable composition for easier installation and durability. Made with the same high-performance Dow ELVALOY™ HP compound as Garland’s KEE-Stone membrane, KEE-Stone NF 60 Flashing is designed as the top component in a two-ply flashing application. This membrane forms a complete flashing system with approved Garland-modified base sheets. KEE-Stone NF 60 is reinforced with a unique polymer-coated high-tensile strength polyester scrim. This distinctive composition provides exceptional puncture, tensile, and tear resistance while preserving the membrane's flexibility. KEE-Stone meets and exceeds ASTM D 6754, the standard specification for KEE-based sheet roofing.

Speak with a Rep

Product Specifications


Product Page Feature Photos

UV Resistant & Energy Saving

KEE-Stone’s white surface and advanced chemistry fight off the damaging effects of the sun to protect your building and your wallet. KEE-Stone’s bright finish reflects damaging UV rays away from the building. At the same time, the KEE formula locks the plasticizer within the membrane to prevent damaging migration that causes fewer materials to dry and crack under UV exposure.

Product Page Feature Photos

Long-Lasting & Durable

KEE-Stone exceeds standard weathering tests, standing up against even the harshest weather and UV radiation. In accelerated weathering tests, KEE-Stone shows no sign of cracking or cratering even at 100X magnification, which is ten times more than the ASTM standard requires. KEE-Stone retains more than 90% of its breaking strength, elongation, and flexibility in heat aging tests.

Photo placeholder to show chemical resistance

Chemical Resistance

The strength of this formula provides extensive chemical resistance properties even in the presence of common rooftop culprits like animal fats, acids, oils, greases, etc. Exposure to harsh chemicals or greases cannot extract the plasticizer from the KEE-Stone membrane, so KEE-Stone NF 60 Flashing can maintain long-term chemical resistance. KEE-Stone NF 60 Flashing is reinforced with a unique polymer-coated high tensile strength polyester scrim. The result is a membrane with exceptional tensile strength and elongation performance that provides extraordinary durability and puncture resistance.

How can we help?

Provide your email address to receive periodic updates from Garland, including commentary and technical analysis on the issues most important to commercial buildings. We'll also share project highlights of completed building envelope work, and you'll be the first to know about our next innovation.  

RMer Span Curve Panels are being installed onto the North County Regional Library