Marine Thermal Blanket Insulation is used for general marine thermal and acoustic applications, including heating, ventilating and air conditioning ductwork. It reduces unwanted heat loss or gain from equipment and ductwork and, when properly installed in the correct thickness, virtually eliminates condensation problems on cold duct surfaces.


  • More efficient operation of heating and cooling equipment
  • Prevention of moisture issues caused by condensation
  • Available unfaced or with FSK vapor retarder facing
  • Faced products have stapling/taping tab on one edge



Marine Thermal Blanket Insulation installs using normal installation practices for general marine thermal, acoustic and HVAC applications.

For installation details, consult the National Commercial and Industrial Insulation Standards published by the Midwest Insulation Contractors Association (MICA).

Warranty Details

Refer to CertainTeed's Limited One-Year Warranty for Fiberglass Duct Wraps (30-29-047).

Sustainability Information

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 fiberglass insulation meets the EPA minimum Recovered Material Guideline for fiberglass products consisting of preconsumer and post-consumer glass cullet. CertainTeed insulation is GREENGUARD Gold Certified for low chemical emissions into indoor air during product usage.

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