What is Astro/Barrier ?
Astro/Barrier is an all-in-one film and foam underlayment for laminate floors. It can be used underneath any laminate floor that requires a film and foam underlayment, including hydronic heat systems.
Why Use It?
- Astro/Barrier's unique construction reduces your floor preparation time by 50%
- Encourages heat flow in hydronic heat applications
- 4-inch flap provides moisture barrier; no taping required
- Cushions as an underlayment, provides a quality hardwood feel
- Clean and non-toxic
- Easy to handle and install
Astro/Barrier - Standard Size
Standard Roll Size » 46" + 4" x 52'
Astro/Barrier - Technical Information
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Physical Property |
Units |
Typical/Properties |
Test Method |
|---|---|---|---|
| Nominal Density | PCF | 1.985-2.225 | ASTM-D-3575 |
| Compression Strength | PSI | 2.0-3.5@ 30% | ASTM-D-3575 |
| Impact Sound Trans. | IIC | 47 | ASTM-E-492-90 |
| Sound Trans. Loss | STC | 50 | ASTM-E-90-90 |
| Vapor Trans. Rate | Gxsq/m/day | 26.1 (AstroFoam) | DIN 52615 |
| Vapor Trans. Rate | Gxsq/in/day | 4.2 (AstroBarrier & II) | DIN52615 |
| Vapor Barrier | 3 mils | PE Film | - |
| Working Temp. | F | -65 to + 165 | ASTM-D-3573 |
| Linear Shrinkage | % | <5& | ASTM-D-3575 |
| Chemical Resistance | N/A | Excellent | ASTM-D-3575 |
| Tensile Strength | PSI | 70-86 | ASTM-D-412 |
| Elongation | % | 76-80 | ASTM-D-412 |
| Tear Strength | Lbf/m | 6.6-8.7 | ASTM-D-624 |
| Water Absorption | % | <01 | ASTM-D-3575 |
| Gauge | Inch | .075 (5/64") | - |
| Thermal Resistance | R-Value | 0.30R | ASTM-C-518 |
Astro/Barrier - Installation Instructions
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Unroll Astro/Barrier onto concrete floor. It is generally easier to place the film side down. However, the foam side can be placed down if preferred. | ![]() |
Make sure when unrolling subsequent rolls that the film-edge overlaps the adjacent roll edge completely. (If the film overlap is less than 4", taping is required to obtain a uniform vapor-barrier.) |
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Allow for a 3"- 4" overlap of Astro/Barrier at the perimeter of the room. Let the excess curl up on the wall edge. | ![]() |
Install laminate floor as directed by the manufacturer over Astro/Barrier. |



