Isocast™ R Insulation

Commercial | Residential | Multifamily | Wall

Superior insulation for concrete panels

Designed to fit between two layers of concrete, lightweight Isocast™ R Insulation boards are ideal for concrete panel walls (precast, tilt-up, or poured in place). A patented foam core provides high R-value and moisture resistance, and connectors hold the finished panel in place.


Isocast™ R Insulation

Isocast™ R Insulation is designed for use in concrete panel walls (precast, tilt-up or poured in place), where it is sandwiched between two layers of concrete with connectors holding together the finished panel. The polyisocyanurate core provides superior insulation, while the facer makes the board virtually moisture resistant. Because it has no exposed metal facings, Isocast™ R will not corrode or react chemically with the concrete in sandwich panel applications.


Features & benefits

Feature Benefit
  • Boards are easy to handle, cut and install
  • Trilaminate (aluminum/poly/kraft) facers
  • Moisture resistant
  • Will not corrode or react chemically with concrete
  • Economical thermal performance
  • Withstands harsh vapor drive conditions
  • Manufactured with zero ozone depleting potential
  • Helps to reduce carbon footprint of commerical buildings

    Physical properties

    Method Unit Value
    Thermal Resistance1 ASTM C518 @ 75°F mean temp ft2/Btu 6.5
    Compressive Strength2 ASTM D1621 psi 25
    Flexural Strength ASTM C203 psi 40
    Water Absorption ASTM C209 % by volume 0.1
    Water Vapor Permeance ASTM E96 perms <0.03
    Maximum Use Temperature - 75°F

    1 R-values are consistent with criteria of ASTM C578 and the requirements of the FTC R-value rule (16 CFR Part 460).

    2 Vertical compressive strength is measured at 10 percent deformation or at yield, whichever occurs first.


    Available sizes


    Thickness1 (in.) R-Value Board Size (in.) Edge Treatment
    Isocast™ R Insualtion 1.00, 1.50, 2.00 - 4 x 8 Square Edge

    1 Not all product sizes are available in all regions