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post frame building insulation r value

Increase Energy Efficiency

Add Up to R-10 with a 1" Drape; Stopping 95% of Radiant Heat Transfer.

reflective insulation with limited lifetime warranty

Lifetime Limited Warranty

Experience Peace of Mind with Our Industry-Exclusive Lifetime Limited Warranty.

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Prevent Delamination

Formulated with UV Inhibitors to Protect Against Flaking, Cracking, or Pitting.

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Reduce Condensation

Easy to Install Insulation & Vapor Retarder; Keeping Your Building Drier Year-Round.

The Gold Standard for Post Frame Insulation

Experience next-level efficiency and peace of mind with Fi-Foil’s Reflective Bubble Insulation (RBI). Every roll of RBI Shield is precisely formulated and manufactured to provide exceptional thermal performance to improve living and working conditions inside your post frame structures.

Insulation Quality Matters

Our R&D team has researched, tested, and selected several compounds in the formulation to enhance tensile strength and pliability for a more puncture-resistant bubble and a premium white polymer surface that wont crack, pit, chalk, peel, or discolor over time.

Our unique manufacturing process allows us to pack more air in each bubble, and the premium polymer and/or reflective films are all bonded together in a one-step process, allowing our bubble insulation to maintain a greater thickness and strength versus others on the market.

RBI Shield insulation rolls are remarkably easy to cut, install and serve as a highly effective vapor barrier when all joints and eaves are properly sealed.

Superior Thermal Performance Year-Round

Utilizing our reflective insulation technology will keep your buildings notably cooler in the summer and warmer in the winter. RBI Shield reflects 95% of radiant heat, which makes a real difference in lowering monthly energy costs and increasing comfort to protect your assets--whether it is livestock, machinery, agricultural foods, other consumables, or clients that drive your business.

Available in single or double bubble and in a variety of widths for the most cost-effective way to insulate your post frame build.

Width of Roll Sq. Foot Coverage
16" 166
24" 250
48" 500
54" 563
66" 688
72" 750


  • Reduces Condensation

  • Adds up to R-10 with 1" Drape

  • Adds Thermal Performance & Comfort, Year-Round

  • Stops 95% of Radiant Heat Transfer

  • Saves Energy to Reduce Operating Costs

  • R&D Formulated With A Premium White Polymer Facing

  • Doubles as An Attractive Ceiling

  • Brightens the Workspace

  • No Cracking, Peeling, Pitting, Chalking or Discoloration

  • Best-In-Class Performance & Strength

  • Cuts to Fit and Seal Easily Around Polycarbonate Skylights or Panels

  • Reflective Technology Keeps Buildings Cooler in the Summer, Warmer in the Winter with Less Load on HVAC Systems

  • Protects Your Assets

  • Lifetime Limited Warranty

  • National Network of Distributors & Contractors



  • 48" and 72" Widths Available

  • Single or Double Bubble Versions

  • Reflective/White or Reflective/Reflective Surface Options

  • Moisture Resistant Material

  • Contains Proprietary Blend of Strengthing & Color Stabilizing Compounds

  • Contains Antioxidants that Reduce the Impact of UV Light and Oxidation

  • Class A Flammability Rating, Reflective/Reflective option

  • Integral Tap Tab Option to Seal Seams and Provide a Clean, Finished Look

  • Installer-Friendly, No Ichy Fibers

  • Less Expensive than Spray Foam

  • Can be Used Alone or Back-Loaded with Mass Insulation in Cooler Climate Zones


Product Compliances



  • Meets or Exceeds ASTM C-1224-03 Standard Specification of Reflective Insulation

  • Meets International Building, Residential and Energy Codes

  • Meets Florida Building, Residential and Energy Conservation Codes

  • IAPMO Evaluation Report 0291

Ideal Additional Building Applications for RBI Shield

agricultural post frame building insulation
Boost Efficiency with a Superior Reflective Bubble Insulation for Agricultural Buildings
  • Cattle Barns
  • Chicken Farms
  • Large Scale Chicken Housing
  • Other Livestock Buildings
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Optimize Your Buildings Energy Savings with High-Performance Reflective Bubble Insulation for Commercial Buildings
  • Gymnasiums
  • Metal Roof Buildings
  • Single and Multi Family Housing
  • Commercial or Residential Pole Barns
best insulation for post frame buildings
Reflective Bubble Insulation Can Help Maximize the Operational Costs and Efficiency in Your Industrial Buildings
  • Aircraft Hangers
  • Military Buildings
  • Other Industrial Applications

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