Technical Specifications

Physical Data
Visual Selection Performance Selection Dots represent highest level of performance.
$$$$$
$$$$$
7/8" Items
3/4" Items
140
Tegular
fine texture
CIRRUS
®
Material
Wet-formed mineral fiber
Surface Finish
Factory-applied latex paint
Fire Performance
ASTM E84 and CAN/ULC S102 surface burning 
characteristics. Flame Spread Index 25 or less. 
Smoke Developed Index 50 or less. (UL labeled)
Fire Guard
: A fire resistive ceiling when used in
applicable UL assemblies
ASTM E1264 Classification
Type III, Form 1, Pattern E I
Fire Class A
Sag Resistance
HumiGuard
®
 Plus – superior resistance to sagging 
in high humidity conditions up to, but not including, 
standing water and outdoor applications.
VOC/Formaldehyde Emissions
Meets CA Dept. of Health Services Standard Practice for 
the testing of VOC Emissions and is listed on CHPS High 
Performance Products Database for Low-Emitting Materials.
Anti Mold/Mildew & Bacteria
BioBlock
®
 Plus contains an anti-microbial treatment and 
provides guaranteed resistance against growth of mold/
mildew and Gram-positive and Gram-negative odor/
stain-causing bacteria for 30 years.
Insulation Value
R Factor – 1.9 (BTU units)  
R Factor – 0.33 (Watts units)
30-Year Performance Guarantee & Warranty Information
Details in back of catalog or at armstrong.com/warranty
Application Considerations
Not recommended for rooms containing MRI equipment.
Weight; Square Feet/Carton
534, 538, 572, 576 – 1.38 lbs/SF; 40 SF/ctn
535, 539, 581, 583 – 1.21 lbs/SF; 48 SF/ctn
577, 578 – 1.25 lbs/SF; 48 SF/ctn
584, 589 – 1.06 lbs/SF; 48 SF/ctn
Acoustics Fire Light Sag Anti- Durable Recycle
Edge Item Dimensions NRC CAC Rating Reflect Resist Microbial Program
Profile No.
CIRRUS Tegular
9/16"  31-34, 54  589 2' x 2' x 3/4"  0.70  35 Class A  0.86  HumiGuard+  BioBlock+  Standard  Yes
Beveled Tegular 589M 600 x 600 x 19mm
• 
589HRC 2' x 2' x 3/4" 
31-34, 54  538 2' x 2' x 7/8"  0.70  38 Class A  0.86  Standard
538M 600 x 600 x 22mm
31  577 2' x 2' x 3/4"  0.35  35  Fire Guard  0.86  Standard
577M 600 x 600 x 19mm
31-34, 54  576 2' x 2' x 7/8"  0.70  40  Class A  0.86  Standard
576M 600 x 600 x 22mm
31-34, 54  583 2' x 4' x 7/8"  0.70  40  Class A  0.86  Standard  Standard
583M 600 x 1200 x 22mm
31-34, 54  539 2' x 4' x 3/4"  0.70  35  Class A  0.86  Standard  Standard
539M 600 x 1200 x 19mm
539HRC 2' x 4' x 3/4" 
15/16"  7  584 2' x 2' x 3/4"  0.70  35  Class A  0.86  Standard
Angled Tegular 584M 600 x 600 x 19mm
584HRC 2' x 2' x 3/4" 
7  578 2' x 2' x 3/4"  0.35  35  Fire Guard  0.86  Standard
578M 600 x 600 x 19mm
7  534 2' x 2' x 7/8"  0.70  38  Class A  0.86  Standard
534M 600 x 600 x 22mm
7  572 2' x 2' x 7/8"  0.70  40  Class A  0.86  Standard
572M 600 x 600 x 22mm
7  581 2' x 4' x 7/8"  0.70  40  Class A  0.86  Standard  Standard
581M 600 x 1200 x 22mm
7  535 2' x 4' x 3/4"  0.70  35  Class A  0.86  Standard  Standard 
535M 600 x 1200 x 19mm
535HRC 2' x 4' x 3/4"
UL Classied
LEED
®
Credits
Acoustics  Low Emitting
or CHPS
LEED for Schools
Recycled
Content:
Energy  Waste  Recycled  Local  Renewable  Daylight
Mgmt Content Materials Materials & Views
Location Dependent
Up to 80% armstrong.com /greengenie
65% Pre-consumer;
15% Post-consumer
Suspension Systems
15/16" 9/16"
Prelude
®
Prelude XL
®
Fire Guard
Interlude
®
Silhouette
®
Bolt-Slot
Sonata
®
Suprafine
®
Suprafine XL
®
Fire Guard
Trimlok
®
Screw-Slot
Square Lay-in 9/16" Angled Tegular 15/16" Angled Tegular
Ultima Plank ShipLap
Long Edge Detail
Ultima Plank ShipLap
K2C2 Short
15/16" Chamford Tegular
Cirrus Profiles Chamfered
Tongue and GrooveConcealed Beveled K4C4
Classic Step Tegular Ultima Plank ShipLap
Long Edge Detail
Ultima Plank ShipLap
Beveled Tegular Short
15/16 Classic Step Tegula
r
~8-ID (99) (drw 10)
9/16" Beveled Tegular 15/16" Beveled Tegular
9/16" Square Cut Tegular 15/16" Square Tegular
9/16" Chamfered Tegular
Cirrus Profiles Chamfered
Concealed
Soft Look Radiused Tegular
9/16" Cubic Graphis
NeoCubic
9/16" Flush Tegular
Ledges
15/16" Flush Tegular
Ledges
9/16" Wrapped Tegular
Graphis Wrapped Linear
and Cubic
9/16" Wrapped Linear and
Mixed Corner “B”
(Flumes, Graphis Linear Corner
& Dots & Squares)
Concealed
Square Edge K4C4
Linear Cubic
Beveled Crossgate
A B
15/16" Vector
C D
15/16" Vector C & D
AB CD
Square Lay-in 9/16" Angled Tegular 15/16" Angled Tegular
Ultima Plank ShipLap
Long Edge Detail
Ultima Plank ShipLap
K2C2 Short
15/16" Chamford Tegular
Cirrus Profiles Chamfered
Tongue and GrooveConcealed Beveled K4C4
Classic Step Tegular Ultima Plank ShipLap
Long Edge Detail
Ultima Plank ShipLap
Beveled Tegular Short
15/16 Classic Step Tegula
r
~8-ID (99) (drw 10)
9/16" Beveled Tegular 15/16" Beveled Tegular
9/16" Square Cut Tegular 15/16" Square Tegular
9/16" Chamfered Tegular
Cirrus Profiles Chamfered
Concealed
Soft Look Radiused Tegular
9/16" Cubic Graphis
NeoCubic
9/16" Flush Tegular
Ledges
15/16" Flush Tegular
Ledges
9/16" Wrapped Tegular
Graphis Wrapped Linear
and Cubic
9/16" Wrapped Linear and
Mixed Corner “B”
(Flumes, Graphis Linear Corner
& Dots & Squares)
Concealed
Square Edge K4C4
Linear Cubic
Beveled Crossgate
A B
15/16" Vector
C D
15/16" Vector C & D
AB CD
The post-consumer
recycled content of
these items is from
reclaimed ceilings
MINERAL FIBER
TechLine
SM
/ 1 877 ARMSTRONG
armstrong.com/ceilings (search: cirrus)
CS-3012-611
LEED
®
 is a registered trademark of the U.S. Green Building Council
All other trademarks used herein are the property of AWI Licensing Company and/or its afliates
© 2011 AWI Licensing Company  •  Printed in the United States of America
Grid
Drawings
Cat. pgs.
226-228
or armstrong.
com/catdwg