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ARMSTRONG Cirrus 24x24 Angled Tegular Ceiling Tile 578B - General Purpose Tiles
ARMSTRONGGeneral Purpose Tiles

ARMSTRONG Cirrus 24x24 Angled Tegular Ceiling Tile 578B

The ARMSTRONG Ceiling Tile 578B is a Cirrus series general-purpose tile in a 24 in x 24 in Angled Tegular edge type for 15/16 in grid systems, sold in a 12-pack. Made of mineral fiber with a white finish, it offers…

SKU 3G-OTH-571319

Also listed as: 578 B · 578-B

Brand
ARMSTRONG
Item
Cirrus 24x24 Angled Tegular Ceiling Tile 578B
Part Number
578B
Category
General Purpose Tiles
Available to Order
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

ARMSTRONG
Manufacturer Part Number
578B
Series
Cirrus
Type
Cirrus, 24 in x 24 in, Angled Tegular, 12 PK
Material
Mineral Fiber
Color
White
Edge Type
Angled Tegular
Grid Size
15/16 in
Application
Libraries
Display Sell UOM
PK
Resistance Properties
Mildew Resistant
Recycled Content Range
High Recycled Content (50% or More)
Light Reflectance Range
High Light Reflectance (83% or More)

Technical Documents

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ARMSTRONG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ARMSTRONG Ceiling Tile 578B is a Cirrus series general-purpose tile in a 24 in x 24 in Angled Tegular edge type for 15/16 in grid systems, sold in a 12-pack. Made of mineral fiber with a white finish, it offers high light reflectance (83% or more) and mildew resistance, with high recycled content (50% or more), designed for library applications.

Frequently Asked Questions

What is the ARMSTRONG 578B ceiling tile used for?

The ARMSTRONG 578B Cirrus ceiling tile is designed for general-purpose acoustic and light-reflective ceilings in libraries and similar quiet environments. Its mineral fiber construction provides mildew resistance and high light reflectance (83% or more), supporting comfortable, well-lit spaces.

What are the specifications of the ARMSTRONG 578B ceiling tile?

The ARMSTRONG 578B is a 24 in x 24 in Cirrus series tile with an Angled Tegular edge for 15/16 in grid systems. It is made of mineral fiber, white in color, and sold in a 12-pack. It offers high recycled content (50% or more) and high light reflectance (83% or more).

Where to buy ARMSTRONG 578B ceiling tiles worldwide?

3G Electric supplies the ARMSTRONG 578B ceiling tile to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this 12-pack of Cirrus tiles.

How to install ARMSTRONG 578B ceiling tiles?

Install ARMSTRONG 578B tiles by fitting the Angled Tegular edge into a 15/16 in exposed grid system. Ensure the grid is level and clean. Gently tilt the tile upward, seat the edge, and lower into place. Follow standard suspended-ceiling best practices for mineral fiber tiles.

Used in

Common applications for ARMSTRONG
Healthcare isolation rooms — Armstrong Calla 2820A sealed system tiles for acoustic control and cleanability
Commercial office ceilings — Armstrong Prelude main beams and cross tees for suspension framing
Hydronic heating systems — Armstrong E23.2 inline circulator pump for potable water circulation
Pump maintenance — Armstrong seal kit 8975002-374K for bearing assembly replacement in circulator pumps
Cleanroom environments — Armstrong Calla 1353N sealed system tiles with mold resistance and high light reflectance
General-purpose interiors — Armstrong Calla 2822AN ceiling tiles for 15/16 in grid with square tegular edge
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ARMSTRONG Products

3G Electric supplies ARMSTRONG general purpose tiles. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Mineral fiber ceiling tile from the Cirrus series, 24 in x 24 in with a square tegular edge for 9/16 in grid systems. White finish, mold resistant, high light reflectance (83% or more), and high recycled content (50% or more). Suitable for library and other indoor applications requiring acoustic control and clean air
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Mineral fiber ceiling tile from the Cirrus series, 24 in x 24 in with a square tegular edge for 9/16 in grid systems. White finish, mold resistant, high light reflectance (83% or more), and high recycled content (50% or more). Suitable for library and other indoor applications requiring acoustic control and clean air
Mineral fiber ceiling tile, white, 24 in x 48 in, beveled tegular edge for 9/16 in grid. Sold in packs of 6. Mold resistant with high light reflectance (83% or more) and high recycled content (50% or more). Suitable for music rooms and other acoustically sensitive environments
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Mineral fiber ceiling tile, white, 24 in x 48 in, beveled tegular edge for 9/16 in grid. Sold in packs of 6. Mold resistant with high light reflectance (83% or more) and high recycled content (50% or more). Suitable for music rooms and other acoustically sensitive environments
Mineral fiber ceiling tile from the Cirrus series, 24 in x 24 in with an angled tegular edge for 15/16 in grid systems. White finish, mildew resistant, high light reflectance (83% or more), and high recycled content (50% or more). Sold in packs of 12. Suitable for music rooms and other spaces requiring acoustic privacy
ARMSTRONG
Mineral fiber ceiling tile from the Cirrus series, 24 in x 24 in with an angled tegular edge for 15/16 in grid systems. White finish, mildew resistant, high light reflectance (83% or more), and high recycled content (50% or more). Sold in packs of 12. Suitable for music rooms and other spaces requiring acoustic privacy

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General-purpose mineral fiber ceiling tile from the Calla series. Square tegular edge for 15/16 in grid. White finish, mold resistant, high light reflectance (83% or more), high recycled content (50% or more). Suitable for library music applications
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Fiberglass ceiling tile in Pebble series, white, 24 in x 48 in, square lay-in edge for 15/16 in grid. Sold in packs of 10. Scratch-resistant surface with high light reflectance (83% or more) and high recycled content (50% or more). Suitable for lavatories and restrooms
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Fiberglass ceiling tile in Pebble series, white, 24 in x 48 in, square lay-in edge for 15/16 in grid. Sold in packs of 10. Scratch-resistant surface with high light reflectance (83% or more) and high recycled content (50% or more). Suitable for lavatories and restrooms
General-purpose ceiling tile made of mineral fiber with a fissured texture and white finish. Measures 24 in x 48 in with square lay-in edges for 15/16 in grid systems. Sag resistant with standard light reflectance. Suitable for commercial interiors such as offices, retail spaces, and corridors
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General-purpose ceiling tile made of mineral fiber with a fissured texture and white finish. Measures 24 in x 48 in with square lay-in edges for 15/16 in grid systems. Sag resistant with standard light reflectance. Suitable for commercial interiors such as offices, retail spaces, and corridors
General-purpose mineral fiber ceiling tile from the Dune series, sized 24 in x 48 in with a beveled tegular edge for 9/16 in grid systems. Features a CAC of 35, mildew resistance, standard light reflectance (82% or less), and high recycled content (50% or more). Suitable for library applications where acoustic performance and moisture resistance are required
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General-purpose mineral fiber ceiling tile from the Dune series, sized 24 in x 48 in with a beveled tegular edge for 9/16 in grid systems. Features a CAC of 35, mildew resistance, standard light reflectance (82% or less), and high recycled content (50% or more). Suitable for library applications where acoustic performance and moisture resistance are required
Mineral fiber ceiling tile in white, 24 x 24 inches, square tegular edge for 15/16 in grid systems. High light reflectance (83% or more) and soil resistant. Suitable for music rooms and other commercial spaces requiring acoustic control
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Mineral fiber ceiling tile in white, 24 x 24 inches, square tegular edge for 15/16 in grid systems. High light reflectance (83% or more) and soil resistant. Suitable for music rooms and other commercial spaces requiring acoustic control
Mineral fiber ceiling tile, 24 in x 48 in, Angled Tegular edge, white. NRC 0.55, CAC 35. Mold resistant. High recycled content. Suitable for music rooms and general acoustic control
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Mineral fiber ceiling tile, 24 in x 48 in, Angled Tegular edge, white. NRC 0.55, CAC 35. Mold resistant. High recycled content. Suitable for music rooms and general acoustic control
General-purpose mineral fiber ceiling tile from the Ledges series. Measures 24 in x 24 in with a Flush Tegular edge for 9/16 in grid systems. Provides a CAC of 35 and is sag resistant. White finish with standard light reflectance. Suitable for retail and commercial spaces
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General-purpose mineral fiber ceiling tile from the Ledges series. Measures 24 in x 24 in with a Flush Tegular edge for 9/16 in grid systems. Provides a CAC of 35 and is sag resistant. White finish with standard light reflectance. Suitable for retail and commercial spaces
Mineral fiber ceiling tile, white, 12 in x 12 in, with concealed edge for 15/16 in grid. Sold in 40-pack. Mold resistant with high light reflectance (83% or more) and high recycled content (50% or more). Suitable for music rooms and other general-purpose applications
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Mineral fiber ceiling tile, white, 12 in x 12 in, with concealed edge for 15/16 in grid. Sold in 40-pack. Mold resistant with high light reflectance (83% or more) and high recycled content (50% or more). Suitable for music rooms and other general-purpose applications

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