QWYATT Barrier/Absorber Blankets

QWYATT Barrier Absorber Blankets are used to control noise for industrial and other applications. Quilted fiberglass mass loaded curtain system, clean room materials and more.

Barrier Absorber Blankets offer an effective, economical method of noise reduction in a wide variety of industrial, architectural, community and OEM noise control applications. Barrier Absorber Blankets can be configured to create total enclosures, partial enclosures, hoods or shrouds, barrier walls and divider partitions. A wide variety of Barrier Absorber Blanket Curtain Panels and curtain support framing options are available to meet any requirements.

FEATURES:

• High actual noise reduction up to 25 dB(A)
• Custom engineered systems for any application
• Roof Panels and ventilation systems available when required
• Quick access to machinery and equipment for operation and maintenance
• Fire safe and low smoke emissions per ASTM E-84, Class 1: Per ASTM E-162, ASTM E-662
• Easily installed, relocated or modified
• View windows for visibility
• Washable and steam cleanable component materials
• Durable constructions for long service life in severe industrial conditions
• Curtain system models are offered in various styles for optimum solution of application's requirements
• Economical alternative to rigid acoustical panel systems

Acoustical Curtain Enclosures

• Modular panels join together to form any configuration required
• A variety of framing systems available
• Double track systems for slide-by access
• View windows for visibility
• Optional roof panels for maximum noise reduction
• Intake and exhaust ventilation baffles available

"QABAC" Style: Barrier Septum Combination

• Sound absorptive faced quilted fiberglass (gray, white, tan or black) on both sides of noise barrier material
• Modular acoustical curtain panels feature grommets at top, book & loop fasteners along each edge
• Utilized as perimeter walls, separator walls, or divider partitions between noise sources
• Utilized as absorber/barrier composite liner in enclosures, rooms or buildings
• Adds additional sound absorption to environment
• Also available in bound or unbound rolls
• STC ratings up to 33, NRC ratings up to .85
• Class 1 flammability rating (per ASTM E-84)

"QBAC" Style: Barrier Backed Combination

• Sound absorptive quilted faced fiberglass on one side of reinforced noise barrier material
• Modular acoustical curtain panels feature grommets at top, and hook & loop fasteners along each edge
• Reinforced barrier back offers excellent durability and abuse resistance
• Utilized as sliding doors on acoustical curtain enclosures
• Suitable for outdoor applications
• Custom fabricated for "acoustical jackets" on blowers, fans or compressor housings
• Also available in bound or unbound rolls
• STC ratings up to 32, NRC ratings up to .85
• Class 1 flammability rating (per ASTM E-84)

In addition to very effective, high performance acoustical curtain panels, a successful, functional acoustical enclosure often requires a wide array of features and options. These include roof-top panels, valances, corner treatments, view windows, ventilation baffles, exhaust fans and a wide variety of curtain support frame options.

Curtain Support Framework

• Standard curtain track and hardware system manufactured from heavy gauge galvanized steel components
• Floor mounted, beam mounted, suspended, wall mounted and ceiling mounted styles available
• Double track configurations allow for slide-by access at any point
• Curved corner options allow for even greater access
• Type "H-D" Heavy Duty Frame (optional) features structural steel tubing for maximum strength to accommodate larger enclosures

Roof Top Vent Baffle

• Allows for exhaust air flow out of enclosure
• Rugged sheet metal construction lined with sound absorption material
• Attaches to rigid roof panel

Intake Air Ventilation Baffle

• Allows for air flow into enclosure without compromising performance
• Manufactured from same components as QBAC curtain panels
• Sewn onto side curtain panels for maximum integrity

View Windows

• Allows for visibility
• Manufactured from transparent flexible vinyl sheet noise barrier material
• Maintains acoustical performance
• Sewn-on, removable, hook & loop fastener attached, drop-down or lift-up styles available

Rigid Roof Panels

• QABAC and QBAC style roof panels incorporate an internal stiffener
• Allows for spanning across top of enclosure without sagging
• Custom sizes available
• QABAC-25RP roof panel STC rating 31

Roof Top Valance

• Used on enclosures with roofs
• Flexible barrier valance closes gap between roof panels and side panels
• Hook & Loop fastener attachment

The most effective noise reduction products combine both sound absorption and noise barrier properties. Tested under strict compliance to appropriate ASTM standards, we offer the following results.

Acoustical Data

Sound Transmission Loss (dB) Octave Band Center Frequencies (Hz)
Curtain Product	Thickness (In./Nom.)	Wt. Lb./S.F.	125	250	500	1000	2000	4000	STC
QBAC-13-2"	2	1.5	13	20	29	40	50	55	32
QBAC-13	1	1.3	11	16	24	30	35	35	27
QABAC-25-2B	2	2.5	19	22	28	40	56	61	33
QABAC-25	2	1.5	12	16	27	40	44	43	29
QABAC-31	2	1.5	12	16	23	33	38	39	27
QABAC-25-RP	2.5	2.6	19	20	28	42	56	62	31

per ASTM: E 90

Sound Absorption Data-absorber Component Random Incident Sound Absorption
.	Octave Band Center Frequencies (Hz)
	125	250	500	1000	2000	4000	NRC
QBAC Products 1" th.	.12	.47	.85	.84	.64	.62	.70
QBAC Products 2" th.	.07	.27	.96	1.13	1.08	.99	.85
QABAC Products 2" th.	.19	.99	.96	.80	.57	.33	.85

Per ASTM: C 423

Flammability Ratings:

Product	Description	Flame Spread	Smoke Density
QABAC-25	Vinyl faced 1" quilted fiberglass on both side of a 1 lb. PSF non-reinforced loaded vinyl noise barrier septum	23	30
QABAC-26	Silicone faced 1" quilted fiberglass on both sides of a 1lb. PSF non-reinforced noise barrier septum	4	19
QABAC-24	Scrim faced 1" quilted fiberglass on both sides of a 1 lb. PSF non-reinforced noise barrier septum	5	1
QBAC-13-2"	Vinyl faced 2" quilt on one side of a 1 lb. reinforced loaded vinyl noise barrier	23	12
QBAC-13	Vinyl faced 1" quilt on one side of a 1 lb. reinforced loaded vinyl noise barrier	23	30
QBAC-14	Silicone faced 1" quilt on one side of a 1 lb. reinforced loaded vinyl noise barrier	4	19

Above table shows flame spread and smoke density ratings per ASTM Designation E84; Surface Burning Characteristics of Building Materials/ Note: Class 1 (or A) rating applies to products with a flame spread of 25 or less.

TRANSMISSION LOSS POTENTIAL, dB

Explanation: The above table indicates theoretical noise attenuation actually realized as a function of any openings or gaps in an acoustical enclosure. For example, if a typical metal panel type enclosure has a transmission loss potential (STC) of 40 decibel (dB) (as listed across the bottom of the chart) and there was a 1% opening in that enclosure (the right hand side of chart), they intersect at a point showing an actual noise attenuation of 20dB (on the left hand side of the chart). In comparison, an Acoustical Curtain Enclosure of QABAC-25 with an STC of 29 (Transmission Loss Potential) incorporating the same 1% opening intersects at a point showing an actual noise attention of 19 dB. Therefore, when there is as little as a 1% opening in any acoustical enclosure, the significant cost savings and ease of access provided by Barrier Absorber Blankets, versus a metal panel enclosure, should be strongly considered.