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3.7 out of 5 stars. 3 reviews
A woman outside with a dog
A woman outside with a dog

SEALTECH Heavy Duty 36 in. x 10 ft. 3mm Thick Reflective Insulation Roll for Soundproofing Thermal Shield Use

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SEALTECH Heavy Duty 36 in. x 10 ft. 3mm Thick Reflective Insulation Roll for Soundproofing Thermal Shield Use

Item # 2403300

SEALTECH SEALTECH Heavy Duty 36 in. x 10 ft. 3mm Thick Reflective Insulation Roll for Soundproofing Thermal Shield Use
SEALTECH SEALTECH Heavy Duty 36 in. x 10 ft. 3mm Thick Reflective Insulation Roll for Soundproofing Thermal Shield Use

$26.99

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Was$29.99

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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 36 inches wide by 10 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
  • 36 inches wide by 10 feet long roll with silver foil surface that stays reflective without flaking or oxidizing over the product life

Q&As

1 - 10 of 17 Questions

Q: can it be used for rv doghouse insulation

11 days ago
1 Answer
  • A: Hi tbuetow! Yes, this can be used for RV Doghouse insulation.
    11 days ago
    Helpful?

Q: Can I return if it’s not the right material?

a month ago
1 Answer
  • A: Hi Davina! Yes, if the product is not the correct material for your project, or you are not satisfied the product can be returned within 30 days of purchase to one of our stores.
    27 days ago
    Helpful?

Q: Can ya use thus product indoors for under carpet pad to prevent heat and cold from entering thru the floor in a mobile home if not can you advise on what product to use

a month ago
1 Answer
  • A: Hi Neighbor! Yes, this product is approved for indoor use as concrete floor underlayment and can be used to reflect 95% of radiant energy to help maintain temperatures. It features a 3mm closed-cell foam core that stays dimensionally stable and foil faces that act as a built-in vapor barrier.
    a month ago
    Helpful?

Q: Would this help insulate a rubbermaid stock tank converted to a cold plunge tub, to help keep the water cold inside the tub? The tub tends to sweat quite a bit is it gonna help keep the moisture from wicking off the exterior of the tub?

2 months ago
1 Answer
  • AI-assisted, Human-approved
    A: Hi Steve, yes, this insulation reflects 95% of radiant energy to help maintain temperatures and features foil faces that act as a built-in vapor barrier. This design prevents moisture wicking and eliminates the need for separate poly sheeting in moisture-prone applications.
    a month ago
    Helpful?

Q: Does it have an adhesive backing?

3 months ago
1 Answer
  • A: Hi Larry! No, this does not have an adhesive backing.
    2 months ago
    Helpful?

Q: What is the max temp rating?

4 months ago
1 Answer
  • A: Hi Neighbor! Please contact the manufacturer.
    4 months ago
    Helpful?

Q: Is it stick on or is it non-adhesive?

6 months ago
1 Answer
  • A: Hi Neighbor- o install SEALTECH reflective insulation for soundproofing and thermal shielding, you'll typically prepare the surface, measure and cut, apply the insulation (often by stapling or adhesive), overlap seams, and seal them with foil tape, ensuring the reflective side faces the heat source (out in summer, in during winter) or the radiant heat you want to block, creating an air gap if possible, and using a roller for a smooth, tight finish.
    6 months ago
    Helpful?

Q: Is this product available in store or has to be ordered

6 months ago
1 Answer
  • A: Hi Neighbor! Please contact your local store.
    6 months ago
    Helpful?

Q: How do you install?

7 months ago
1 Answer
  • A: Hi Neighbor! Installation is going to widely depend on the intended use. We recommend speaking with the manufacturer for installation tips based on the intended use.
    7 months ago
    Helpful?

Q: Will it act as a heat shield next to a wood stove to protect the wall from getting too hot and igniting?

7 months ago
1 Answer
  • A: Hi Neighbor! It's generally for reflecting heat away or reducing heat transfer, not as a primary, standalone fire barrier next to a wood stove. You need dedicated stoveboard or non-combustible wall protection with an air gap, as this foam insulation's fire-retardant properties aren't enough to stop intense stove heat from igniting wall studs without proper clearance and materials.
    7 months ago
    Helpful?
1 - 10 of 17 Questions

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Overall Rating

3.7
1 out of 1 (100%) reviewers recommend this product

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    • noises
    • weight
    1 to 3 of 3 Reviews .
    1 – 3 of 3 Reviews
    Review 1

    Thin

    6 months ago
    The product was too thin
    SweepstakesYes
    Martinsburg wv
    Review 1

    SEALTECH Heavy Duty Insulation

    a year ago
    Perfect insulated backing for undercabinets against the wall in older homes. Easy cutting to fits working with.

    Yes, I recommend this product.

    Review 1

    Very sufficient

    a year ago
    Used it to block out the cold nd it works very well as well as blocking out noise like it says on the paper it came with highly recommend.