Technical Specifications
TechLine 877 276-7876 
armstrongceilings.com/ultima
MINERAL FIBER – Standard
armstrongceilings. 
com/catdwgs
Susp. 
Dwg. Item No.
Dimensions 
(Inches)
UL Classied  
Acoustics
Total 
Acoustics
1
Articulation 
Class
Fire 
Performance
Light Reect
Bio- 
Block
Humi- 
Guard+
Certied Low 
VOC Emissions
 CleanAssure
™
  DURABILITY
Disinfectable Panels
Recycle Program
30-Yr Warranty
Anti-Mold/ 
Mildew
Sag 
Resistant
Fog
Wash
Impact
Scratch
Soil
+ =
ULTIMA
®
 High NRC
15/16" 
Beveled Tegular
HRC items not  
included in  
made-to-order  
panels.
15 1941  24 x 24 x 7/8"  0.80 
•
35 
•
BEST 170 
•
Class  
A
0.88 
•
• • • • • • • • • •
1944 24 x 48 x 7/8"  0.80 
•
35 
•
BEST 170 
•
Class  
A
0.88 
•
• • • • • • • • • •
1433 24 x 60 x 7/8"  0.80 
•
35 
•
BEST 170 
•
Class  
A
0.88 
•
• • • • • • • • • •
1436 24 x 72 x 7/8"  0.80 
•
35 
•
BEST 170 
•
Class  
A
0.88 
•
• • • • • • • • • •
ULTIMA
®
 High NRC
9/16" 
Beveled Tegular
HRC items not  
included in  
made-to-order  
panels.
29, 44,  
48, 52,  
56
1942
24 x 24 x 7/8"  0.80 
•
35 
•
BEST 170 
•
Class  
A
0.88 
•
• • • • • • • • • •
1942HRC 24 x 24 x 3/4"  0.75 
•
35 
•
BEST 170 
•
Class  
A
0.88 
•
• • • • • • • • • •
1945  24 x 48 x 7/8"  0.80 
•
35 
•
BEST 170 
•
Class  
A
0.88 
•
• • • • • • • • • •
1431 30 x 30 x 7/8"  0.80 
•
35 
•
BEST 170 
•
Class  
A
0.88 
•
• • • • • • • • • •
1434  24 x 60 x 7/8"  0.80 
•
35 
•
BEST 170 
•
Class  
A
0.88 
•
• • • • • • • • • •
1437 
24 x 72 x 7/8" 
0.80 
•
35 
•
BEST 170 
•
Class  
A
0.88 
•
• • • • • • • • • •
7/8" Thick – 15/16" & 9/16" Beveled Tegular
Made-to-Order 
Sizes
Visit the product page 
online and see “Congure 
an Item” to verify capabilities. 
Questions? email Techline@armstrongceilings.com
Width  Length N/A N/A N/A N/A Class  
A
0.88 
•
• • • • • • • • • •
  4"–  6"
6-1/2" – 30"
 30-1/2" – 48"
 12" – 72" 
  4" – 72"
  4"   –  30"
1
   Total  Acoustics
®
 ceiling panels have an ideal combination of sound absorption and sound blocking in one product.  
 GOOD (NRC 0.60-0.65; CAC 35+) BETTER (NRC 0.70-0.75; CAC 35+) BEST (NRC 0.80+; CAC 35+)
VISUAL SELECTION  PERFORMANCE SELECTION Dots represent high level of performance.
$$$$
 ▲       
  LOCATION DEPENDENT
energy 
management
recyclable/ 
extended 
producer resp. 
material  
ingredient  
reporting
recycled 
content
sourcing of  
raw materials
low emitting/ 
materials
lighting  
quality
biobased  
materials
regional 
materials
design for 
exibility
construction 
waste mgmt
EPD
acoustics 
WELL
™
  LBC
 LEED
®
Calculate sustainability with GreenGenie
™
armstrongceilings.com/greengenie
RECYCLED 
CONTENT
84%
UP TO
MORE ITEMS 
ULTIMA
®
ULTIMA
®
 High NRC
Tegular
ne texture
SUSPENSION SYSTEMS
15/16"  9/16"
Blizzard White – Suspension System Finish 
A color and texture coordinated suspension 
system to complement Ultima
®
 ceiling panels  
for a monolithic look and feel.
Prelude
®
 Silhouette
® 
1/4" Reveal
Silhouette
1/8" Reveal
 Suprane
®
 Interlude
®
 XL
®
 HRC  
95%
GREENGUARD
Gold Certied
(details below)
PHYSICAL DATA 
Material
Wet-formed mineral fiber with DuraBrite
®
acoustically transparent membrane
Surface Finish
DuraBrite scrim with factory-applied latex paint
Fire Performance
Class A: ASTM E84 and CAN/ULC S102 surface  
burning characteristics. Flame Spread Index of 25 or  
less. Smoke Developed Index of 50 or less (UL labeled).
Fire Guard
™
: A fire-resistive ceiling when used  
in applicable UL assemblies (Class A)
ASTM E1264 Classification
Type IV, Form 2, Pattern E 
Fire Class A
Humidity/Sag Resistance
HumiGuard
®
 Plus ceiling panels are recommended  
for areas subject to high humidity, up to, but not  
including, standing water and outdoor applications. 
Anti-Mold/Mildew
Ceiling panels with BioBlock
®
 performance resist the  
growth of mold and mildew on the tile surface.
Cleaning and Disinfecting
Cleaning and CDC recommended disinfecting options  
available on armstrongceilings.com/cleaning 
30-Year Performance Guarantee & Warranty
When installed with Armstrong
®
 Suspension System.  
Details at armstrongceilings.com/warranty 
Weight; Square Feet/Carton
1945 – 1.14 lbs/SF; 48 SF/ctn 
1941, 1942, 1942HRC – 1.125 lbs/SF; 40 SF/ctn 
1944 – 1.125 lbs/SF; 48 SF/ctn 
1433 – 1.05 lbs/SF; 60 SF/ctn 
1436 – 1.04 lbs/SF; 72 SF/ctn 
1431 – 1.06 lbs/SF; 62.5 SF/ctn 
1434 – 1.05 lbs/SF; 60 SF/ctn 
1437 – 1.04 lbs/SF; 72 SF/ctn
Minimum Order Quantity
1 carton
Metric Items Available
1941M, 1944M, 1945M – Metric items are  
subject to extended lead times and minimum  
quantities. Contact your representative for  
more details.
VOC Emissions 
GREENGUARD Gold Certified
Third-party certified compliant 
with California Department of Public 
Health CDPH/EHLB/Standard Method 
Version 1.2, 2017. This standard is the  
guideline for low emissions in LEED
®
, WELL 
Building Standard
™
, Living Building Challenge
®
(LBC), CalGreen Title 24, ANSI/ASHRAE/USGBC/IES  
Standard 189; ANSI/GBI Green Building Assessment Protocol.
Acoustical Performance
CAC testing conducted using Prelude
®
 XL
®
 suspension system 
for 15/16" edge detail and Silhouette
®
 suspension system for 
9/16" edge detail. 
Primary (Embodied) Energy
See all LCA information on our EPDs.
High Recycled Content
Contains greater than 50% total recycled content.  
Total recycled content based on product composition of 
post-consumer and pre-consumer (post-industrial) recycled  
content per FTC guidelines. HRC items contain 15% or  
greater post-consumer recycled ceilings.
Insulation Value
R Factor – 2.2 (BTU units); R Factor – 0.39 (Watts units)
PRODUCT CERTIFIED
FOR LOW CHEMICAL
EMISSIONS
UL.COM/GG
UL 2818




