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QFA Absorptive Exterior Grade Acoustic Curtains

QFA Absorptive Exterior Grade Acoustic Curtains by Acoustical Surfaces

Exterior Quilted Fiberglass Absorber

For outdoor soundproofing performance, utilize the QFA Absorptive Exterior Grade Curtain by Acoustical Surfaces. Read more about this product, including some highlighted features as well as specs, below.

  • Superior UV and Weather Resistance
  • Available In Four Facing Colors
  • Heavy-Duty Vinyl-Coated-Polyester Facing on Both Sides
  • 1” or 2″ Thick Fiberglass Core
  • NRC Rating .75

Exterior Grade Quilted Fiberglass Absorbers reduce the reflection of sound waves by covering reflective surfaces with a suitably UV-protected, porous, sound-absorbing product. The exterior Quilted Fiberglass Absorber consists of a heavy-duty vinyl-coated polyester facing on both sides of a 1” or 2″ thick quilted fiberglass. The outdoor sound barrier curtains are constructed with grommets across the top and bottom and are sewn with an exterior grade thread.


Product Testing & Information

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  • CSI Specifications
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Product Specs


Fiberglass core with facings noted below


Quilted Diamond Pattern


Effective, Durable, UV Resistant, Weather Resistant, Sound Absorbing


Exterior Grade faced quilted fiberglass absorbers are used to reduce reverberant noise on permanent outdoor applications such as enclosing HVAC equipment, dust collectors or similar machinery behind a manufacturing plant where UV resistance is required. The sound reducing curtains are commonly installed over wood fencing or on brick or masonry walls of buildings adjacent to a job site or a noisy piece of machinery.


Nominal 1”, 2”


QFA-EXT-S: 1” thick fiberglass – EGV front/NPS back facings
QFA-EXT-D: 1” thick fiberglass – EGV on both sides
QFA-EXT-S-2: 2” thick fiberglass – EGV front/NPS back facings
QFA-EXT-D-2: 2” thick fiberglass – EGV on both sides

NOTE: For high-temperature conditions, a silicon impregnated vinyl is available. Please call a sales associate or email us at [email protected] for more information.


Exterior Grade Vinyl – EGV
Nonwoven Porous Scrim - NPS

Temperature Range

-40°F to +180°F

Roll Size

48″ Wide × 25′ Long


0.50 lb psf


Gray, Tan, Black, Beige


Grommet Hangers

Absorptive Exterior Curtain – Sound Absorption Performance – ASTM C 423
125Hz 250Hz 500Hz 1KHz 2KHz 4KHz NRC
2″ Absorptive Exterior Curtain .46 .94 .85 .64 .47 .33 .75


Absorptive Exterior Curtain – Sound Transmission Loss – ASTM E-90 & E 413
125Hz 250Hz 500Hz 1KHz 2KHz 4KHz STC
2″ Absorptive Exterior Curtain 9 14 19 21 27 34 21