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AlphaSorb® Dual-Sided Outdoor Absorptive Sound Blanket

(9 customer reviews)

There is a minimum order quantity of 3 for this product.

Thickness: 2" fill
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Return Policy: This product is non-returnable

Typical Shipping Lead Time: 3–5 weeks; additional lead time is needed for orders of 5 or more blankets

Product Description

The AlphaSorb® Dual-Sided Outdoor Absorptive Sound Blanket (formerly the AQFA-10EXT Exterior Absorber Sound Blanket) is used to add sound absorption to exterior applications to reduce reverberation and echo. This weather-resistant blanket is constructed using two layers of 1 in. thick acoustical fiberglass batting quilted with Gore® Tenara® thread to a durable exterior-grade vinyl coated polyester.

The AlphaSorb® Dual-Sided Outdoor Absorptive Sound Blanket can be installed on existing solid surfaces. This quilted fiberglass absorber blanket reduces the reflection of sound waves by adding soft, porous, open-celled materials to an otherwise less absorbent surface. These blankets are often used to reduce sound from outdoor HVAC equipment, dust collectors or other equipment and can be installed on wood fencing or exterior walls.

The quilted blanket may be configured as hanging panels or provided as roll goods. Standard sound blanket panels are constructed with all edges bound and grommets across the top and bottom edges. Rolls can also be supplied with unbound edges and typically do not include grommets unless otherwise specified.

These durable blankets are available in a variety of colors and stitch patterns, have an NRC rating of 0.75, and weigh approximately 0.50 pounds per square foot.

Standard 4′ x 8′ blanket panels may be ordered online. Other sizes up to 4 ft. x 25 ft. are available, please contact us with your specific requirements.

Technical Information for AlphaSorb® Dual-Sided Outdoor Absorptive Sound Blanket

  • Size:
    • Panels: 48″ (w) x 96″ (h) (nominal) or customized to order up to 4′ x 25′
    • Rolls: 4′ (w) x 25′ (l) (nominal)
  • Thickness: 2″ (nominal; actual thickness may vary after quilting)
  • Construction: Vinyl coated fiberglass cloth facing on both sides, quilted with 2 pound per cubic foot density fiberglass batting
  • Intended Use: Exterior, sound absorption
  • Pattern: Diamond Stitching (default), Vertical Stitching (custom)
  • Edges:
    • Panels: Bound Edges
    • Rolls: Bound or Unbound (no grommets unless otherwise specified)
  • Finish: Exterior Grade vinyl coated fiberglass cloth facing on both sides
  • Colors: Grey (default), Black, Tan, Off-White
  • Weight: 0.50 pounds per square foot
  • Tolerance: +/- 1/4″ (finished blankets sizes are nominal due to the quilting process)
  • Mounting Provision:
    • Panels: Grommets along top edge and bottom edge or as specified
    • Rolls: No mounting provided unless otherwise specified
  • Intended Use: Exterior, sound absorption
  • Temperature range: -40 degrees to 180 degrees Fahrenheit
  • NRC: 0.75
  • STC: 21
Sound Absorption (Hz) per ASTM C423
125 250 500 1000 2000 4000 NRC
0.46 0.94 0.85 0.64 0.47 0.33 0.75
Sound Transmission Loss (Hz) per ASTM E-90 & E 413
125 250 500 1000 2000 4000 STC
9 14 19 21 27 34 21

prop 65 warning icon WARNING: This product can expose you to chemicals including formaldehyde, which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.

For more information on our AlphaSorb® Dual-Sided Outdoor Absorptive Sound Blanket,
call us at 800.782.5742 or contact our sales department.

Customer Reviews

Jean T.

Great product. Fantastic people to work with.

PM Environmental Inc

Product was every bit as effective as promised

John K

Decent build quality, only one stitch a little bit frayed. Will see how it holds up long term. Ordered two, using one right now. Instantly reduced my sound problem (HVAC compressor).

T H Watkins

The sound absorbing blanket fits the intended space nicely. Since I needed to mount it horizontally, however, it would have been preferable to have support grommets in all four sides, not just the 2 short ends.
I think the blanket has knocked the noise of 2 air conditioning condensers down some. The proof of the blanket’s effectiveness will be in the ears of my next door neighbor. If I don’t hear from him, he’s not hearing my a/c.

Masrsh B.

Didn't help as much as I hoped.

W Forbes

great product