Description
DuPont Thermax Sheathing is a multipurpose, nonstructural, rigid board insulation that is quick and easy to install in a wide range of exposed and concealed cavity wall applications.
DuPont Thermax Sheathing consists of a glass-fiber-infused polyisocyanurate foam core laminated between 1.0-mil smooth, reflective aluminum facers on both sides. The glass fiber reinforcement contributes to improved fire performance and dimensional stability. DuPont Thermax Brand insulation delivers wall performance you can count on. It’s ready to meet your toughest building challenges ”“ both outside and inside the wall ”“ with a robust ISO insulation product line and an R-value that’s proven consistent over time and a range of temperatures.
Features & Benefits
Physical Properties
Method Unit Value
Compressive Strength ASTM D1621 Psi, min (kPa) 25 (170)
Water Absorption ASTM D2842 – 3.5
ASTM C209 % by volume, max. 0.1
Water Vapor Permeance ASTM E96 perm, max (ng/Pa-s-m2) <0.03 (<15)
Maximum Use Temperature – °F 250
Flexural Strength ASTM C203 Psi, min (kPa) 40 (275)
Tensile Strength ASTM D1623 Psi, min (kPa) 24 (170)
Dimensional Stability ASTM D2126 % 0.2
DuPont Thermax Sheathing is a multipurpose, nonstructural, rigid board insulation that is quick and easy to install in a wide range of exposed and concealed cavity wall applications.