Lexar G Plus is engineered with enhanced thermal performance from its graphite-infused core for high R-value applications. Lexar G Plus features a laminated film facer and functions as an air and water-resistive barrier (WRB). Lexar G Plus meets ASTM C578 and is manufactured under an industry-leading quality control program monitored by UL and ICC-ES. Lexar G Plus has a stable lifetime high R-value, a range of strengths, and outstanding moisture resistance. Manufactured with a low Global Warming Potential (GWP) and Zero Ozone Depletions Potential (ODP), Lexar G Plus has earned GreenGuard certification.
Primary uses include wall and below-grade applications where enhanced thermal performance and moisture resistance are critical.
Product Highlights
- Foam Core 100% Recyclable
- Compressive strength: 10, 15, and 25 psi
- Flat 4’x8′, 4’x9′ and 4’x10′ sheets, standard sizes up to 4″ thick
- Graphite enhanced for additional R-value
- Limited lifetime warranty for physical and thermal performance
Code Compliance
Lexar G Plus is recognized for compliance with the following standards and code:
- ASTM C578
- ASTM E84/UL723
- NFPA 285 Assemblies
- IBC – International Building Code
- IRC – International Residential Code
- IECC – International Energy Code
See UL Listings, UL ER16529-01, and ICC-ES ESR-1962
Warranty

Lexar G Plus is backed by a limited lifetime warranty for physical and thermal performance, in addition to termite resistance when applicable. See separate Lexar warranty for terms and conditions.

