Cotton Armor Blanket Insulation
  Cotton Armor Blanket Insulation


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Cotton Armor Blanket Insulation

Acoustical and Thermal Insulation Blankets


Cotton Armor Sound Control

Applegate Cotton Armor Acoustical Insulation is optimally sized for 16" and 24" on-center (o.c.) residential and commercial framing applications, and has industry-leading Sound Transmission Class (STC) ratings. The higher the STC rating, the better the sound absorption ability of the material.


An R-13 Cotton Armor insulated wall: 52 STC
An R-19 Cotton Armor insulated wall: 53 STC
An R-21 Cotton Armor insulated wall: 54 STC
(Above, STC ratings calculated according to ASTM E-90 testing for sound transmission loss in 24" o.c. steel stud walls and one 5/8th inch layer of type X gypsum on each side.)

For Party Walls:
An R-19 Cotton Armor insulated wall:  59 STC
with two layers of Cotton Armor:         62 STC

An R-13 Cotton Armor insulated wall:  57 STC
with two layers of Cotton Armor:         60 STC
(Above party wall STC ratings were calculated according to ASTM E-90 testing for sound transmission loss in double 24" o.c. wood stud walls with one 5/8th inch layer of type X gypsum on each side.)

Previously, in order to achieve an STC rating in the 50s expensive specialty materials and wall configurations were needed. The increased cost of superior acoustical performance brought effective sound control out of reach for many. Cotton Armor insulation helps make premium acoustical performance affordable as it is competitively priced and achieves its superior STC ratings due to its proprietary 21st century production process (which also makes it easier to properly size and install than yesteryear's batts).



Installers and building operators appreciate the advantages of reduced installation time and increased acoustical performance of Cotton Armor insulation. Installers also avoid the headaches and increased cost of special sound control products and wall constructions.


The table below gives some examples regarding the general effectiveness of STC ratings as they pertain to what one can hear.


STC Rating Typical Description of Performance
30 Loud speech understood fairly well
35 Loud speech audible but unintelligible
42 Loud speech audible as a murmur
45 Must strain to hear loud speech
48 Some loud speech barely audible
50 Loud speech usually not audible


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"For every house is built by some man; but he that built all things is God."

— Hebrews 3:4