how to install double bubble insulation

Installing double bubble insulation is a relatively simple process that involves applying a reflective insulation material with two layers of bubble insulation. This type of insulation is often used in metal buildings, attics, walls, and other spaces where it can help reflect heat and improve energy efficiency. Here’s a step-by-step guide on how to install double bubble insulation:

Materials You’ll Need:

  • Double bubble insulation rolls or sheets
  • Utility knife or scissors
  • Measuring tape
  • Staple gun and staples
  • Duct tape or foil tape (optional)
  • Safety goggles and gloves (recommended)


  1. Measure the Area:
    • Measure the area where you intend to install the double bubble insulation. This will help you determine how much material you need.
  2. Prepare the Surface:
    • Ensure that the surface where you’ll be installing the insulation is clean and free from debris. If necessary, use a broom or vacuum to remove dust and dirt.
  3. Unroll the Insulation:
    • Unroll the double bubble insulation material and cut it to the appropriate length using a utility knife or scissors. Make sure it’s slightly longer and wider than the area you’re insulating to ensure complete coverage.
  4. Start at One End:
    • Begin at one end of the area you’re insulating. Position the insulation with the reflective side facing the direction you want to reflect heat (typically facing outward in hot climates and inward in cold climates).
  5. Secure with Staples:
    • Use a staple gun to attach the insulation to the surface. Space the staples about every 12 to 24 inches along the edges of the insulation and in the center. Be careful not to puncture the bubble layers excessively.
  6. Overlap Seams (if necessary):
    • If you need to use multiple pieces of insulation to cover a larger area, overlap the seams by about 2 inches to create a continuous thermal barrier. Seal the seams with duct tape or foil tape for added insulation integrity.
  7. Trim Excess Material:
    • Trim any excess material at the edges of the insulation using a utility knife or scissors.
  8. Repeat the Process:
    • Continue unrolling, cutting, and attaching the insulation until you’ve covered the entire area.
  9. Secure Edges and Corners:
    • Pay special attention to the edges and corners of the insulation. Make sure they are securely fastened to prevent air gaps.
  10. Additional Considerations:
    • In some cases, you may need to add a layer of drywall or another finishing material over the insulation for aesthetic or structural reasons.
  11. Test the Insulation:
    • Once the double bubble insulation is installed, you can assess its effectiveness by monitoring temperature changes in the insulated space. In hot weather, you should notice a decrease in indoor temperatures, and in cold weather, the insulation should help maintain indoor warmth.

Installing double bubble insulation is a cost-effective way to improve the energy efficiency of a space. It’s important to wear safety goggles and gloves when handling insulation materials and follow safety guidelines to ensure a successful installation.

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