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5.0 out of 5 stars. 4 reviews
A woman outside with a dog
A woman outside with a dog

SEALTECH Heavy Duty 24 in. x 100 ft. 3mm Thick Reflective Insulation Roll for Soundproofing Thermal Shield Use

SEALTECH Heavy Duty 24 in. x 100 ft. 3mm Thick Reflective Insulation Roll for Soundproofing Thermal Shield Use

Item # 240329899

SEALTECH SEALTECH Heavy Duty 24 in. x 100 ft. 3mm Thick Reflective Insulation Roll for Soundproofing Thermal Shield Use
SEALTECH SEALTECH Heavy Duty 24 in. x 100 ft. 3mm Thick Reflective Insulation Roll for Soundproofing Thermal Shield Use
$84.95


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SEALTECH Heavy Duty 24 in. x 100 ft. 3mm Thick Reflective Insulation Roll for Soundproofing Thermal Shield Use

Item # 240329899

SEALTECH SEALTECH Heavy Duty 24 in. x 100 ft. 3mm Thick Reflective Insulation Roll for Soundproofing Thermal Shield Use
SEALTECH SEALTECH Heavy Duty 24 in. x 100 ft. 3mm Thick Reflective Insulation Roll for Soundproofing Thermal Shield Use

$84.95
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This reflective insulation roll cuts heating and cooling costs by reflecting 95% of radiant energy, working as a radiant barrier in homes, barns, workshops, and outbuildings. The roll measures 24 inches wide by 100 feet long with a 3mm closed-cell foam core sandwiched between fire-retardant engineered foil layers. Closed-cell foam stays dimensionally stable across humidity and temperature swings, holds its shape without settling out of position, and doesn't host rodent nesting or moisture wicking like fiberglass batts. The foil faces act as a built-in vapor barrier, so no separate poly sheeting is needed for moisture-prone applications. Approved for indoor and outdoor use across attics, walls, ceilings, garage doors, metal roofs, steel buildings, and concrete floor underlayment. The closed-cell core absorbs mid-frequency sound to reduce noise transmission between rooms or from outside. Non-toxic, non-allergenic, and fiber-free installs without protective gear, won't irritate skin, eyes, or airways. The roll trims with utility knife or scissors and fastens with staples, foil tape, or spray adhesive depending on the application surface. Silver foil surface stays reflective without flaking or oxidizing over the product life.



For additional information on this product, please see the Product Documents section for all downloadable user manuals, installation guides, brochures and warranty statements.

  • Reflects 95% of radiant energy to cut heating and cooling costs in homes, barns, workshops, and outbuildings works as a radiant barrier without bulky batt insulation
  • 3mm closed-cell foam core between fire-retardant engineered foil layers stays dimensionally stable, holds shape without settling, and won't host rodent nesting or moisture wicking like fiberglass
  • Foil faces act as a built-in vapor barrier no separate poly sheeting needed for moisture-prone walls, garage doors, or metal roofs
  • Closed-cell core absorbs mid-frequency sound to reduce noise transmission between rooms or from outside the building envelope
  • Non-toxic, non-allergenic, fiber-free construction installs without protective gear and won't irritate skin, eyes, or airways during cutting or fastening
  • Trims with utility knife or scissors and fastens with staples, foil tape, or spray adhesive adapts to attic, wall, ceiling, floor, or roof surfaces
  • 24 inches wide by 100 feet long roll with silver foil surface that stays reflective without flaking or oxidizing over the product life

Q&As

1 - 4 of 4 Questions

Q: What is the R value of the 5mm?

5 months ago
1 Answer
  • A: Hi Neighbor! R-16.
    5 months ago
    Helpful?

Q: Can you wrap air duct with it?

7 months ago
1 Answer
  • A: Hi Neighbor-\ Yes, you absolutely can wrap air ducts with SEALTECH Heavy Duty Reflective Insulation for thermal shielding and soundproofing; it's designed for ductwork, offering moisture resistance, easy DIY installation, and acts as a radiant barrier to improve HVAC efficiency, especially if you create an air gap for higher R-values.
    7 months ago
    Helpful?

Q: If I put this on exterior walls of house where pool pump is located will rain or water affect this? Will it reduce sound from pool equipment heard on adjacent wall?

7 months ago
1 Answer
  • A: Hi Neighbor- SEALTECH Heavy Duty 3mm reflective insulation roll can be used on the outside of a house, as it is designed for various indoor and outdoor applications and is resistant to moisture and vapor. However, it's important to note that this type of insulation is best for preventing radiant heat transfer and should be considered as a supplement to a wall's primary R-value (thermal resistance), not a replacement for it. This is designed to act as a sound barrier. For any other specifications, please reach out to manufacturer. This item is moisture resistant
    7 months ago
    Helpful?

Q: Can you install this under metal siding

10 months ago
1 Answer
  • A: Hi Neighbor! Yes, this can be installed under metal siding.
    10 months ago
    Helpful?

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Reviews

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5.0
3 out of 3 (100%) reviewers recommend this product

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  • ease of use
  • for home
  • gliding
  • lighting
  • price
  • small
1 to 3 of 4 Reviews .
1 – 3 of 4 Reviews
Wisconsin
Reviews 2

Great Product

a day ago
Great for sound proofing and added insulation.
SweepstakesYes

Yes, I recommend this product.

Oklahoma
Review 1

Tiny home insulation layer

2 years ago
Light , easy to use, double-sided. Used as a second layer of insulation in tiny house build. Worked great and cost effective over spray foam or rolled insulation.

Yes, I recommend this product.

Leesburg, Florida
Reviews 3

Great garage door insulation

2 years ago
Used for garage doors and found about 20 degrees cooler when the sun is directly hitting the doors
SweepstakesYes

Yes, I recommend this product.

1 Ratings-Only Review