PET Foil Vapor Barrier is an exceptional reflective laminated insulation facing, engineered for superior thermal and moisture control. This advanced aluminum foil vapor barrier is constructed by laminating aluminum foil to Polyester (PET) film layers with glue, significantly increasing its tensile strength and mechanical impact resistance. It represents an ideal, flexible, and efficient barrier material, suitable even for outdoor use.
Our PET Foil Vapor Barrier can come in various configurations, including PET-Foil, PET-Foil-PET, or Foil-PET-Foil, to meet diverse insulation requirements.
Foil Layer (Reflective Surface): The aluminum foil layer serves as a highly reflective surface, effectively reducing radiant heat transfer. It reflects radiant heat back into the space, preventing it from penetrating the insulation and escaping the building. This reflective property significantly enhances the overall thermal performance of the insulation system.
PET Film Layer (Strength & Vapor Barrier): The Polyester (PET) film layer provides crucial strength and durability to the facing material. It protects the foil layer from damage during installation and offers resistance against tearing or puncturing. Furthermore, the PET film acts as a powerful vapor barrier, effectively reducing moisture transmission through the insulation and helping to prevent condensation.
The combination of aluminum foil and PET film makes this vapor barrier ideal for both residential and industrial insulation projects. It offers an optimal balance of flexibility, strength, and reflective properties, making it suitable for a wide variety of applications. Whether you need to protect your insulation system from moisture, enhance energy efficiency, or increase the lifespan of your insulation materials, PET Foil Vapor Barrier delivers reliable performance.
SLAA TAPE have different types of foil vapor barriers to choose from and you can click on the product code below to get TDS.
Foil: 7u / PET Film: 12u
Winding Flexible Duct or as vapor barrier of rubber insulation.
PET Film:12u / Foil: 25u / PET Film: 12u
Premium grade PET-Foil-PET vapor barrier for rubber foam / glasswool board / section / pipe insulation.
Foil: 20u / PET Film: 25u / PET Film: 25u / Foil: 20u
As a jacketing over insulation board, segments, pipe sectionis.
Foil: 15u / PET Film: 12u
Utility grade Foil-PET vapor barrier for rubber foam / glass wool board / section / pipe insulation
Foil: 25u / PET Film: 30u
Premium grade PET-Foil vapor barrier for rubber foam / glasswool board / section / pipe insulation.
Foil: 25u / PET Film: 12u
Excellent vapor barrier & reflective insulation for board, segments, pipe sections.
Foil: 7u / 3-way Scrim 8 x12 / MPET: 12u
Winding Flexible Duct or as vapor barrier of rubber insulation.
Foil: 7u / 3-way Scrim 8 x12 / MPET: 12u
Winding Flexible Duct or as vapor barrier of rubber foam insulation.
Foil: 7u / PE adhesive / 3-way PE Scrim
Winding Flexible Duct or as vapor barrier for glasswool / rockwool / mineral wool / foam duct wrap insulation.
Foil: 7u / PE adhesive / 3-way PE Scrim
Winding Flexible Duct or as vapor barrier for glasswool / rockwool / mineral wool / foam duct wrap insulation.
Q1. What is a PET foil vapor barrier and how does it work?
A: A PET foil vapor barrier is an advanced laminated insulation facing constructed by bonding aluminum foil to Polyester (PET) film layers. The aluminum foil layer acts as a reflective surface that reflects radiant heat to improve thermal efficiency, while the durable PET film layer provides high tensile strength, tear resistance, and an impermeable barrier against moisture transmission and condensation.
Q2. What configurations are available for PET foil vapor barrier insulation?
A: To meet diverse residential, commercial, and industrial insulation requirements, PET foil vapor barriers are available in multiple laminated configurations, including PET-Foil, PET-Foil-PET, and Foil-PET-Foil. Each construction balances flexibility, mechanical strength, and radiant reflection based on the specific jobsite application.
Q3. How does PET foil compare to traditional foil paper vapor barriers or foil scrim kraft vapor barriers?
A: While traditional foil paper vapor barrier and foil scrim kraft vapor barrier products rely on paper backings or fiberglass mesh for structure, a PET foil faced vapor barrier incorporates synthetic polyester film. This PET film layer significantly increases mechanical impact resistance, tensile strength, and puncture resistance, making the material far more durable, flexible, and resistant to tearing—even in outdoor or high-moisture environments.
Q4. What are the primary applications for PET foil vapor barrier insulation?
A: This versatile foil vapor barrier is extensively used for winding flexible pipe insulation, functioning as a protective facing over rigid insulation boards, pipe segments, and HVAC components, and serving as a critical moisture barrier in cold insulation systems to prevent moisture ingress and maintain thermal performance.
Q5. Is PET foil vapor barrier suitable for outdoor insulation installations?
A: Yes. Thanks to the added toughness and mechanical protection provided by the laminated Polyester (PET) film layer, this aluminum foil vapor barrier exhibits superior resistance to physical wear, tearing, and environmental exposure, making it suitable for both indoor and outdoor insulation wrapping projects.
