Commercial Blanket Insulation

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Multi-use Blanket Insulation

This product is used as a thermal or acoustical insulation in commercial buildings where wide rolls of unfaced insulation are required such as retrofitting a warehouse. It is also used in post frame construction. In roofs and sidewalls this product can be used as a second layer over the unfaced side of Metal Building Insulation 202-96. Additionally, it may be installed over old roof decks (BUR and metal) prior to application of a new standing seam roof.

CBI is made from inorganic glass fibers bonded with a thermoset resin to form a uniformly textured, pale yellow blanket insulation.
These insulation products may qualify for rebates and other incentives. For more information, visit for your area’s specific offers.

CertainTeed cares about the environment and Building Responsibly™, and for more than 100 years has maintained a commitment to provide sustainable, innovative solutions that improve energy efficiency and comfort. From production to product, CertainTeed's focus has been on minimizing its impact on the environment by reducing energy consumption, conserving renewable resources and lowering greenhouse gas emissions. And with our Sustainable Insulation® fiber glass products, the mission continues. Visit for more information or watch our YouTube video.

Applicable Standards:
Model Building Codes:
  • ICC
  • New York City MEA 18-80-M
  • California Quality Standard Reg. No. CA-T024 [PA]

Material Standards:
  • ASTM C665, Type I
  • ASTM C991, Type I

Fire Resistance:
Fire Hazard Classification:
  • UL 723, ASTM E84, NFPA 255
  • Max. Flame Spread Index; 25
  • Max. Smoke Developed Index; 50

  • ASTM E136, Meets requirements

Physical/Chemical Properties:
Thermal Resistance:
  • ASTM C518, ASTM C177

Moisture Absorption:
  • ASTM C665, Not greater than 0.2% by volume or by weight.
  • ASTM C665, Meets requirements

Fungi Resistance:
  • ASTM C1338, Meets requirements

Odor Emission:
  • ASTM C1304, Meets requirements

Product is normally applied over or between the structural members of the building and held in place by the covering sheets or insulation support system. When using high R-value systems, it is recommended that the cavity between the exterior metal sheet and the faced fiber glass insulation should be completely filled with CBI insulation.
CertainTeed insulation products improve building energy efficiency and reduce building energy consumption for the life of the structure. As a result, they help conserve nonrenewable energy sources, decrease dependence on foreign oil and lower greenhouse gas emissions. In addition, the recycled content of CertainTeed fiber glass insulation is currently 30-35% and exceeds the EPA Recovered Material Guideline for fiber glass products, consisting of pre-consumer and post-consumer glass cullet.

Most CertainTeed fiber glass insulation products have been certified by the GREENGUARD Environmental Institute and meet the GREENGUARD standards for low Volatile Organic Compound (VOC) emissions, including formaldehyde.