Owens Corning

Cellular glass structural insulating block

FOAMGLAS® Perinsul® SIB

FOAMGLAS® PERINSUL® SIB Cellular Glass Structural Insulating Block is a long-lasting, high-compressive-strength, rigid insulating block that creates a continuous thermal barrier at the base of masonry veneer exterior walls for net zero ready and other high-performance buildings.

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FOAMGLAS® PERINSUL® SIB Cellular Glass Structural Insulating Block

Building Enclosure Solutions

Owens Corning® Enclosure Solutions offers one of the largest portfolios of commercial insulation products for walls, roofs, and below-grade foundations. Engineered with Owens Corning technical expertise and supported by Building Science, Owens Corning® Enclosure Solutions deliver buildings that perform without compromising design.

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Performance Attributes

Waterproof icon

Waterproof

Durable icon

Durable

High Compressive Strength icon

High Compressive Strength

Dimensionally Stable icon

Dimensionally Stable

Technical Information

Technical information contained herein is furnished without charge or obligation and is given and accepted at recipient’s sole risk. Because conditions of use may vary and are beyond our control, Owens Corning makes no representation about, and is not responsible or liable for, the accuracy or reliability of data associated with particular uses of any product described herein.

Physical Properties1

PROPERTY

TEST METHOD2

VALUE

Thermal Resistance3 R-Value/ inch @75°F (24°C) minimum mean temperature, Hr-ft²-°F/BTU (m²-°C/W)

ASTM C518/
ASTM C177

2.4 (0.42)
X: 2.8 (0.49)
Y: 2.4 (0.42)

Compressive Strength minimum (capped), psi (kPa)

ASTM C165/
C240/C552

304 (2100)

Dimensional Stability¹, % maximum
@158°F/97% R.H.
@ -40°F/Ambient R.H.
@200°F/Ambient R.H.

ASTM D2126

1.0
1.0
1.0

Density, minimum pcf (kg/m3)

ASTM C303

10.6 (170)

Hygroscopicity

No increase in weight at 90% relative humidity

Water Absorption,
maximum % by volume

ASTM C2400.09

Water Vapor Permeability,
maximum perm-in (ng/Pa-s-m)

ASTM E96

0.001 (0.001)

Mold / Mildew Resistance

ASTM C1338

Pass

Corrosion Resistance

ASTM C1617

Pass (Steel coupon, less than DI water)

Hydrostatic Resistance,
minimum equivalent water
height in feet (meters)

ASTM D5385/C130634.5 (10.5)

Linear Thermal Expansion, maximum in/in/­°F (mm/mm/°C)

ASTM E228

5.0 x 10-6
(9.0 x 10-6)

Combustibility

ASTM E136

Unfaced: Non-combustible

Surface Burning
Characteristics, maximum
Flame Spread index
Smoke Developed index4

ASTM E84

0, unfaced4
0, unfaced4

  1. Modified per ASTM C1902.
  2. Properties shown are representative values for 1-inch-thick material, unless otherwise specified.
  3. R means the resistance to heat flow; the higher the value, the greater the insulation power. This insulation must be installed properly to get the marked R-value. Follow the manufacturer’s instructions carefully. If a manufacturer’s fact sheet is not provided with the material shipment, request this and review it carefully. R-values vary, depending on many factors, such as direction in which the test is conducted in the case of cellular glass. The U.S. FTC requires the R-value of home insulation to be measured at 75 degrees F mean temperature. R-value claims should always be compared at the same mean temperature. Average horizontal R-value is provided for comparison with other materials as well as minimum R-value in both X and Y (vertical) cross-sectional direction for thermal modeling. Consult the Owens Corning Enclosure Solutions Structural Insulating Block Design Guide.
  4. Facing is not rated for flame propagation resistance. PERINSUL® SIB as installed with mortar covering the facing, and edge of block exposed should be considered unfaced.

1 Refer to the Commercial Design Guide for structural information.

Applications

Related Products

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