cuMulus
The Cumulus™ is a triangular broadband acoustic corner trap that
effectively absorbs sound energy from 100Hz and up. Designed to t in
corners where the wall and ceiling meet, the Cumulus takes advantage of
the natural propagation of sound that occurs in all rooms. Sound waves
follow the wall and ceiling planes and accumulate in the corners, a well
known hot spot in small rooms.
The Cumulus is amazingly compact yet when in place, creates a 12” deep
cavity behind the panel that increases the bass absorption characteristics.
Mounting Cumulus traps in a room will generally yield a signicant
reduction in the problematic low-mid (100Hz - 200Hz) region while leaving
the architectural design of the room virtually intact.
Invisible mounting is achieved using spring-tensioned cleats and a single
eye-screw. Mounting literally takes minutes and because of the reverse
beveled edges Cumulus traps ush mount seamlessly into the room
esthetics. The Cumulus is available in 3 colors: black, grey and beige.
Sold in pairs.
SPECIFICATIONS:
ORDER NUMBER Z840-1210-XX (xx denotes color code 00=Black; 03= Beige; 08=Grey)
DIMENSIONS 24” (610mm) x 24” (610mm) x 24” (610mm)
PANEL DEPTH 2” (51mm)
CORE MATERIAL
DENSITY
WEIGHT 1.65 lbs / .75 kg
FABRIC FACING Acoustically transparent polyester
BACKING Sealed with acoustically transparent micromesh
EDGE TREATMENT Reverse bevel edge. Sealed and hardened with resin
RECYCLED CONTENT Up to 40%
LEED ELIGIBLE Ye s
Formed, semi-rigid inorganic glass bers, 6.0 lbs pcf (96 kg/m3)
ENGINEERING DATA SHEET
24” (610mm)
12”
(305mm)
2”
(51mm)
ABSORPTION CHARACTERISTICS:*
Sound absorption coefcient data
PANEL DEPTH 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz
2” (51mm) Depth 1.23 1.15 1.24 1.2 1.14 1.11
* Testing performance based on Broadway panel test results and 1/4 wavelength calculations.
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
Sound Absorption Coefficient
0.1
0.0
125 Hz
150 Hz
200 Hz
250 Hz
300 Hz
350 Hz
400 Hz
450 Hz
500 Hz
550 Hz
600 Hz
700 Hz
800 Hz
900 Hz
1 kHz
2 kHz
Frequency
FIRE & BURN PERFORMANCE:
COUNTRY TEST STANDARD CLASSIFICATION
Canada CAN/ULC-S102-03 Class A/1
USA ASTM E84-09 Class A/1
Europe EN 13501-1 A2-s1, d0
Australia / New Zealand AS/NZS 1530.3 (I)0, (S)0, (H)0, (Sm)5
APPLICATION:
MOUNTING:
3 kHz
Mounting is accomplished with spring tensioned cleats and a single
4 kHz
eye-scew.
Primacoustic is a division of Radial Engineering Ltd. • 1588 Kebet Way Port Coquitlam, BC V3C 5M5 • Tel: 604-942-1001 Fax: 604-942-1010
www.primacoustic.com • info@primacoustic.com • Primacoustic Engineering Data Sheet • Part #R870 2200 00 • Copyright © 2016 • Subject to change without notice.
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