Q: How do I know which Armstrong ceiling product meets the ASTM E1264 type, form and pattern classifications?

A: ASTM E 1264-98

Basis of Classification
Ceiling Types:
Type I - Cellulose base with painted finish
Type II - Celluluse base with membrane-faced overlay

Type III - Mineral base with painted finish

  • Form 1, Nodular (Cirrus, Fine Fissured #592, Fine Fissured Open Plan, Highspire, Natural Fissured, Sanserra, Stratus)
  • Form 2, Water felted (Armatuff, Classic, Cortega, Crossgate, Designer, Dune, Fine Fissured, Fissured, Georgian, Graphis, Tin Craft, Tundra)
  • Form 3, Dry felted
  • Form 4, Cast or molded
Type IV - Mineral base with membrane-faced overlay
  • Form 1, Nodular
  • Form 2, Water felted (Clean Room Mylar, Clean Room VL, Ultima, VL perforated)
  • Form 3, Dry felted
  • Form 4, Cast or molded
Type V - Perforated steel facing (pan) with mineral or glass fiber base backing
Type VI - Perforated stainless steel facing with mineral of glass fiber base backing
Type VII - Perforated aluminum facing (pan) with mineral or glass fiber base backing
Type VIII - Cellulose base with scrubbable pigmented or clear finish

Type IX -Mineral base with scrubbable pigmented or clear finish

  • Form 1, Nodular
  • Form 2, Water felted - Cortega #761, Fine Fissured #1749
  • Form 3, Dry felted
  • Form 4, Cast or molded
Type X - Mineral base with plastic or aluminum membrane-faced overlay, or both
Type XI - Mineral base with fabric-faced overlay
  • Form 1, Nodular
  • Form 2, Water felted - Soft Look
  • Form 3, Dry felted
  • Form 4, Cast or molded
Type XII - Glass fiber base with membrane-faced overlay
  • Form 1, Plastic - Random Fissured, Pebble Open Plan, Shasta, Stonebrooke
  • Form 2, Cloth - Optima Open Plan, Optima Plank, Optima Vault, Optima Vector, Painted Nubby Open Plan
  • Form 3, Other
Type XIII - Aluminum or steel strip with mineral or fiber glass fiber base backing
  • Form 1, Perforated
  • Form 2, Non-perforated
Type XIV - Excelsior bonded with inorganic binders
  • Form 1, No backing
  • Form 2 , Backed with mineral fiber or glass fiber base backing
Type XX - Other types (describe)
  • Ceramaguard (high density ceramic-like) composition with scrubbable finish
  • Fine Fissured Ceramaguard (high density ceramic-like) composition with scrubbable finish
  • MetalWorks Plank nonperforated (Nonacoustical steel panel)
  • MetalWorks Plank microperforated (microperforated steel panel)
  • MetalWorks Vault nonperforated (Nonacoustical aluminum panel)
  • MetalWorks Vault perforated (Perforated aluminum panel)
  • MetalWorks Vector nonperforated (Nonacoustical steel ceiling panel)
  • MetalWorks Vector Microperforated (Perforated steel ceiling panel)

Ceiling Patterns

Q: How do I know which Armstrong ceiling product meets the ASTM E1264 type, form and pattern classifications?

A: ASTM E 1264-98

Ceiling Patterns
Pattern Designation Pattern Description
A Perforated, regularly spaced large holes
A: MetalWorks Vector perforated
B Perforated, randomly spaced large holes
C Perforated, small holes
C: Classic, MetalWorks Plank microperforated, MetalWorks Vault microperforated
CD: Cortega, Fissured, Natural Fissured
CDK: Cortega Second Look
CE: Armatuff, Dune, Fine Fissured, Fine Fissured Ceramaguard, Fine Fissured Open Plan, Georgian, Tundra, VL perforated
CEK: Fine Fissured Fine Look, Fine Fissured Second Look, Dune Second Look
D Fissured
E Lightly textured
E: Clean Room VL, Random Fissured and Shasta (nonperf), Painted Nubby Open Plan, Stonebrooke, Ultima, Optima Open Plan, Optima Plank, Optima Vault
EC: Random Fissured, Shasta (perf), Pebble Open Plan
EI: Cirrus
EIC: Cirrus Open Plan
EIK: Cirrus Second Look and scored products
EIKZ: Cirrus Borders, Cirrus Grid Accents, Cirrus Themes
EJ: Cirrus Classic Motifs 
F Heavily textured F: Stratus, Designer FK: Designer Second Look 
G Smooth
G: Ceramaguard, MetalWorks Vector nonperforated, MetalWorks Plank nonperforated, MetalWorks Vault nonperforated
GA: Cassettes perforated
GH: Clean Room Mylar
H Printed
I Embossed
J Embossed-in-register
J: Highspire, Sanserra
JZ: Graphis, TinCraft (classic embossed tin ceiling design)
K Surface scored
L Random swirl
Z Other patterns, describe
Z: Crossgate (cubic and linear rilled), Soft Look (nonwoven fabric finish)


Flame Spread Classification
Classification Flame Spread Smoke Developed
Class A 0-25 0-50
Class B 26-75   
Class B 76-200   
Class D 201-   


* All Armstrong ceiling products have a Class A flame spread rating

ASTM Information
American Society for Testing Materials
100 Barr Harbor Drive
West Conshohochen, PA 19428-2959
Phone: 610 832 9500
Fax: 610 832 9555
Website: www.astm.org

*All ASTM documents should be requested directly through ASTM 

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