Learn More » Drop Ceiling Insulation
Noise Reduction Coefficient (NRC)
Noise Reduction Coefficient (NRC) is a general rating that tells you how much sound a surface (in this case a ceiling tile) will absorb. This rating is represented as either a percentage or a decimal, with 1 (or 100%) being perfect absorption and 0 (or 0%) being perfect reflection. In other words, the higher the decimal or percent, the more sound the tile will absorb.
|Tile Type||NRC Alone||with Soniguard™|
|Stratford NRC.85+™ Acoustical System||85%||NA*|
|Stratford NRC.50+™ Acoustical System||50%||NA*|
|Feather-Light Ceiling Tile Collection||25%||50%|
|Signature Ceiling Tile Collection||15%||30%|
* Both NRC.85+ and NRC.50+ include Soniguard within the system, thus, we have chosen to represent only its NRC alone (which includes Soniguard).
Sound Transmission Class (STC)
Sound Transmission Class (STC) is used to rate several different types of building materials for their ability to block sound and prevent it from passing through them. Putting appropriate material between you and a sound source can reduce the apparent loudness of the sound. Adding material with an STC of 5 is clearly noticeable and an STC of 10 or more cuts the apparent loudness by 50%. As the STC goes up, the loudness continues to go down.
|Tile Type||STC Alone||with Soniguard™|
|Stratford NRC.85+™ Acoustical System||TBD||NA*|
|Stratford NRC.50+™ Acoustical System||TBD||NA*|
|Feather-Light Ceiling Tile Collection||10||13|
|Signature Ceiling Tile Collection||15||18|
* Both NRC.85+ and NRC.50+ include Soniguard within the system, thus, we have chosen to represent only its total STC alone (which includes Soniguard).
Ceiling Attenuation Class (CAC)
Ceiling Attenuation Class (CAC) is a measure that tells you how much sound travels up through a ceiling, through a common plenum (the area above a suspended ceiling), and then into an adjacent interior space.
|Tile Type||CAC Alone||with Soniguard™|
|Stratford NRC.85+™ Acoustical System||9||NA|
|Stratford NRC.50+™ Acoustical System||20||NA|
|Feather-Light Ceiling Tile Collection||14||20|
|Signature Ceiling Tile Collection||21||26|
* Both NRC.85+ and NRC.50+ include Soniguard within the system, thus, we have chosen to represent only its total CAC alone (which includes Soniguard).
R-Value is a measure of a material's ability to resist heat traveling through it. The higher the R-Value the better the thermal performance of the material (ceiling tiles, in this case!).
|Tile Type||R-Value Alone||with AcoustoTherm®||with Soniguard™|
|Stratford NRC.85+™ Acoustical System||TBD||NA||NA|
|Stratford NRC.50+™ Acoustical System||6.012||NA||NA|
|Ceilume Feather-Light Ceiling Tiles||0.012||0.790||6.012|
|Ceilume Signature Ceiling Tiles||0.028||0.806||6.028|
Drop Ceiling Insulation
Soniguard™ is thermal-bonded, non-woven batting made from polyester fiber that is safe for skin contact. Batts are 24 x 24 x 1.5 inch nominal; use two above a 24 x 48 inch panel. Do not install beneath fire sprinklers.
- Thermal Resistance: R-6, ASTM C518
- Water Vapor Sorption: 0.0033 percent, ASTM C1104
- Surface Burning Characteristics: Class A, ASTM E84
- Does not promote fungal growth, odor, or corrosion: ASTM C665
- Fungal Resistance: 0 (no growth), ASTM C1338
Placing Soniguard™ above your suspended ceiling tiles will dramatically improve the acoustical performance of any drop ceiling - no matter what type of tile (vinyl, mineral fiber, and even tin!) you have installed.
AcoustoTherm® Backpanels have an inverted-pan shape and nest atop our panels to create a three-inch deep air pocket that dampens acoustic vibrations and provides thermal insulation.
Made from 0.013-inch thick translucent vinyl with a frosted finish, AcoustoTherm® can be used with luminous ceilings to diffuse above-ceiling light sources and reduce shadows caused by detritus that would otherwise accumulate directly on ceiling panels. For most uniform lighting, light source should be at least six inches above backpanels.
AcoustoTherm® has Class A surface burning characteristics and can be used with or without fire sprinklers installed above or beneath ceilings.
AcoustoTherm® Backpanels are nominally 24 x 24 inches and require six-inch clearance. When two backpanels are used above a translucent 24 x 48 inch panel, a shadow will be visible at the center of panel.