R-Panel Roof Insulation
Johns Manville R-Panel® rigid roof insulation board offers R-Values of up to R-23.6, providing high thermal efficiency. R-Panel is manufactured with a closed-cell polyisocyanurate foam core bonded to fiberglass-reinforced facers and designed for use over metal, nailable and non-nailable roof decks with a variety of membrane systems. R-Panel meets the International Building Code requirements for a foamed plastic roof insulation.
Thermally Efficient: Effective resistance to heat transfer, with R-values up to R-23.6.
Universal Facer: Compatible with BUR, modified bitumen and single-ply membrane systems.
Clean Air: Meets Clean Air Act Amendments of 1990.
Miami-Dade County Product Control Approved: Complies with the Florida Building Code including the High Velocity Hurricane Zone of the Florida Building Code.
Lightweight: Easy to handle and may be cut with a utility knife or saw.
|ASTM Standards||ASTM C1289-01||Type II, Class I, Grade 2|
|Flame Spread||ASTM E84||≤ 75|
|Smoke Development||ASTM E84||≤ 450|
|Water Vapor Transmission||ASTM E96||< 1 perms (57.5 ng/Pa-s-m2)|
|Compressive Strength||ASTM D1621||≥ 20 psi (138 kPa)†|
|Dimensional Stability||ASTM D2126||2% max, 7 days (length & width)|
|Water Absorption||ASTM C209||< 1% volume|
|Service Temperature||-100 to 250°F|
|R-Value Per Inch||5.7 LTTR|