ICA-SHEATH – Laminated Insulation

Premium Laminated SheathingICA-SHEATH is a laminated insulation board with an Expanded Polystyrene (EPS) core. It can be laminated with clear or metalized polypropylene film. The strength of ICA-SHEATH provides a high degree of protection while enhancing the performance of your home’s existing insulation. This sheathing lays flat on the wall, can be perforated for breathability, is extremely durable, lightweight and easily installed with common hand tools. Providing efficient R-Values, ICA-SHEATH laminated insulation is economical and will help to conserve energy when installed properly. It is also moisture resistant, reducing the risk of mold and mildew, making it an ideal choice for exterior or below-grade insulation.

ICA manufactures ICA-SHEATH from 3/8 inch up to 4 inches thick.

ICA-SHEATH starts with an expanded polystyrene core, which meets the specifications of ASTM-C578. It is then laminated with printed or reflective polypropylene film facers on one or both sides. ICA-SHEATH Plus is also available, which includes an insect resistant additive.

Uses of Laminated Insulation Board

With excellent dimensional stability and compressive strength, ICA-SHEATH is your best choice for numerous

  • Continuous Insulation
  • Cavity Walls
  • Radiant Heated Floors
  • Concrete Slabs
  • Cold Storage & Freezers
  • Crawl Spaces
  • Exterior Sheathing
  • Basement Walls and Much More!

Advantages of Laminated Insulation Boards

ICA-SHEATH’s superior strength provides a high degree of protection, all the while enhancing the performance
of your home’s existing insulation. Economical and efficient when installed properly, ICA-SHEATH will
help to conserve energy by allowing your heating and cooling systems to operate more effectively.

ICA-SHEATH lays flat on the existing wall, providing an exceptionally smooth surface and can be ordered perforated for breathability.

ICA-SHEATH is lightweight yet extremely durable and easily installed with common hand tools.

The thermal properties of ICA-SHEATH will remain stable over its entire service life, so there is no loss of performance.

SIZE & DENSITY of ICA-SHEATH Insulation Board

ICA-SHEATH is available in thicknesses ranging from 3/8″ to 4″ and can be ordered in densities ranging from 1 pcf up to 2.85 pcf. Common sizes are 4′ x 8′ and 2′ x 8′ and custom lengths are available.

Sheathing Options:

  • Single or double sided
  • Clear poly film
  • Clear printed film
  • Silver poly film
  • Perforated

Available Densities (pcf):

TYPE I: 1.0# Virgin or Recycled 

TYPE VIII: 1.25#

TYPE II: 1.5#

TYPE IX: 2.0#

TYPE XIV: 2.5#

TYPE XV: 2.85#

Available Sizes of Laminated Board:

  • 3/8″ – 4″ thick
  • 4′ x 8′ or 2′ x 8′ sheets
  • Custom lengths available upon request

The biggest culprit of energy loss, and in turn higher cost to homeowners, is thermal bridging. “Heating and cooling account for about 48% of the energy use in a typical U.S. home, making it the largest energy expense for most homes.” (U.S. Department of Energy). Heat will escape through the path of least resistance. Standard building foundations that utilize studs, for example, have multiple exit/entry locations, or breaks in the building envelope. This factor makes the insulation significantly less effective. Using a rigid foam sheathing such as ICA-SHEATH protects the insulation with a continuous barrier while adding more R-value to the construction. In effect, there is less transfer of energy and thus significant savings on heating and cooling.

ICA-SHEATH R-Value Chart

*Caution: This product is combustible and if exposed to a fire of sufficient heat and intensity may burn rapidly. It should not be left exposed or inadequately protected.


Download Our ICA-SHEATH Specifications Sheet