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Armstrong Ceilings

Armstrong Ceilings Dune 24" x 24" x 5/8" Tegular Ceiling Tile, White, SKU 1774

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SKU 5000237481

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Details

Dune 24x24x5/8 Tegular Ceiling Tile

Fine-textured mineral fiber ceiling tiles designed for suspended grid systems. Delivers balanced acoustics with NRC 0.50 and CAC 35, high light reflectance, and HUMIGUARD Plus/BIOBLOCK performance for durable, cleanable panels.


Key Features:

  • Balanced Acoustics: NRC 0.50 sound absorption and CAC 35 sound blocking for everyday performance
  • Durable, Clean Finish: Fine texture with factory-applied latex paint resists scratching and scuffing
  • Humidity & Mold Resistance: HUMIGUARD Plus and BIOBLOCK inhibit sag, mold, and mildew
  • Easy Installation: Angled Tegular edge for 15/16" grid in standard suspended (lay-in) systems
  • Energy-Friendly Brightness: 81% light reflectance enhances ambient light and reduces lighting needs

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Color White
Dimensions 24" x 24"
Thickness 5/8"
Material Mineral Fiber
Texture Fine
Surface Finish Factory applied latex paint
Edge Angled Tegular 15/16"
Face Profile 15/16"
Installation Method Grid (Suspended)
Shape Rectangle
Weight 0.75 lbs/SF
Sq Ft / Carton 64
Pieces / Carton 16
Sound Absorption (NRC) 0.50
Sound Blocking (CAC) 35
Light Reflectance 81%
Fire Performance Class A (UL)
Sag/Humidity Resistance HUMIGUARD Plus
Mold/Mildew Resistance BIOBLOCK
ASTM Classification Type: A, Form: A1.2, Pattern: E
R Factor (Watts) 0.28 m2 K/W
Insulation Value R Factor (BTU) 1.60 BTU
Special Applications Library; Music / Language Room
Made in U.S.A. of Domestic and Global Content Yes

Frequently Asked Questions (FAQ):

Q: What grid does this tile fit?
A: It is an angled tegular panel designed for 15/16" suspension systems.


Q: What are the tile dimensions and thickness?
A: Each panel measures 24" x 24" with a 5/8" thickness.


Q: How does it perform acoustically?
A: It provides NRC 0.50 for sound absorption and CAC 35 for sound blocking.


Q: Is it suitable for humid areas?
A: Yes. HUMIGUARD Plus resists sag from humidity, and BIOBLOCK helps resist mold and mildew on the surface.


Q: What is the material and finish?
A: Mineral fiber core with a factory-applied latex paint finish in White.


Quiet Refinement for Everyday Spaces

With its fine, even texture and crisp tegular reveal, Dune transforms a ceiling into a calm, luminous plane. The subtle shadow line frames each tile, adding architectural rhythm without distraction. Pair it with a warm neutral wall palette and soft indirect lighting to amplify its 81% light reflectance. It’s an effortless essential for elevating lobbies, corridors, and learning spaces with polished ease.


Choose Dune to achieve bright, balanced acoustics and a refined ceiling look—order your 24" x 24" tegular tiles today.

Warranty

Installation

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