CORTEGA: 770

  • CORTEGA | 770
  • CORTEGA
CORTEGA | 770
CORTEGA | 770
Edge Dimensions Acoustics
Square Lay-In 15/16
Square Lay-In 15/16 in
24 in x 24 in
24 in x 24 in x 5/8 in
 0.55 NRC
33 CAC
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Resources

Technical Details

Performance

Acoustics

Acoustical options available.
 
Sound Absorption (NRC)

A measure for rating the overall sound absorption of a material when used in an enclosed architectural space where sound is reflected at many angles of incidence. A ceiling system with an NRC < 0.50 is low performance, an NRC > 0.70 is high performance.
0.55
Sound Blocking (CAC)

A measure for rating the performance of a ceiling system as a barrier to airborne sound transmission through a common plenum between adjacent closed spaces. A ceiling system with a CAC < 25 is considered low performance, whereas one with CAC of 35 or higher is high performance.
33
Fire  
  Fire Performance Class A (UL)
Light Reflectance

Light reflectance average of 0.83 or greater. White only.
82%
Sag/Humidity Resistance

Ceiling panels maintain humidity and sag resistance.
Standard
Insulation Value R Factor-BTU: 1.5 BTU
R Factor-Watts: 0.26 m2 K/W

Physical Data

Material Mineral Fiber
Texture Medium
Surface Finish Factory applied latex paint
Shape Rectangle
Sq Ft (Sq Ft / Carton) 64
Pieces / Carton 16
ASTM Classification Type: III, Form: 2, Pattern: C D

Sustainability Profile

Recycled Content
Up To 41%
Recyclable Through Armstrong Recycling Program usRecycle_alt Learn More
LEED Calculator by EcoScoreCard usGreenGenie_alt Get Started

Installation

Compatible Suspension Systems

PRELUDE XL 15/16" Exposed Tee
PRELUDE XL 15/16" Exposed Tee

This hot-dipped galvanized steel 15/16" suspension system offers high recycled content for improved LEED credits.
PRELUDE ML 15/16" Exposed Tee
PRELUDE ML 15/16" Exposed Tee

A 15/16" suspension system with hook-end details.
AXIOM for FORMATIONS Clouds
AXIOM for FORMATIONS Clouds

Easy-to-specify and install cloud system with pre-cut components and wide range of panel options.

How to and Guides

  • Fast and Easy Acoustical Ceiling Installation

    Learn how to install a commercial ceiling from start to finish in this 20 minute ceiling apprentice course/video.

Videos