The Barrier - The first choice for underslab insulation

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April 20, 2014

The Barrier Technical Specifications

Materials & Construction:

  • Expanded polystyrene core with 2 layers of vapor barrier polymeric film
  • NOFP Patented 1" factory applied self taping edge of double sided permanent adhesive running along the 64' edge, 96' edge or 8' edge, depending on product
  • 3" overlap flange on top film layer
ThicknessBarrier™ 3/8"BarrierXT™ 3/4"BarrierXT™ 1.25"BarrierHL™ 1/4"XBoard™ 2.38"
Roll Size4'x64'4'x64'4'x64'4'x96'4'x8'
Square Footage25625625625632
Density10psi10psi10psi25psi25psi

Architectural & Engineering Specifications:

The Barrier™ product family may be specified in construction specifications using the following division according to Master Specification format:

Division 7 -Thermal Moisture Protection
Section 07210 -Building Insulation
Section 07240 -Exterior Insulation and Finished Systems
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Performance Characteristics

The Barrier™ product family has been tested to meet code specifications as they relate to thermal performance as well as vapor, water, and moisture barrier requirements.

The industry standard Thermal Conductivity and Resistance test method using ASTM Standard C-518 - "Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus" was used for testing.

Test Method(s)

The industry standard Water Permeability Test Method (ICBO Sections 4.6.1 & 4.6.2) and Water Vapor Permeability Test Method (Procedure B of ASTM E96) were used for moisture transfer testing.

The industry standard Water Permeability Test Method (ICBO Sections 4.6.1 & 4.6.2) and Water Vapor Permeability Test Method (Procedure B of ASTM E96) were used for moisture transfer testing.

Water Permeability Transfer and Water Vapor Permeability Transfer Values
Permeance (grains/hr ft x 2 in. Hg)Permeability (grains/hr ft x 2 in. Hg)
0.0000.000

Additional Comments by testing facility:

"This product meets or exceeds the ICBO conditions for acceptance. At the end of 24 hours, there was NO indication that any water had dripped from the underside of the specimens. In fact, a 3.5" head of water (rather than the required 2.0" head for 24 hours) was employed, with the same results after a period of 96 hours".

ALL TESTING HAS BEEN PERFORMED BY A CERTIFIED TESTING LABORATORY: GEOSCIENCE LTD. - Laboratory Testing Division.

Note: These typical property values are intended as guidelines only, and not as specification limits. R-value means resistance to heat flow, the higher the R value the higher the insulating power.

The Barrier - Installation instructions The Barrier Insulation Brochure