• SmartSHIELD - 20mm Reflective Insulation Roll, Foam Core Radiant Barrier, Thermal Foil Insulation Panel - 0.8 Inch Thickness R-23 thumbnail
  • SmartSHIELD - 20mm Reflective Insulation Roll, Foam Core Radiant Barrier, Thermal Foil Insulation Panel - 0.8 Inch Thickness R-23 specification
  • SmartSHIELD - 20mm Reflective Insulation Roll, Foam Core Radiant Barrier, Thermal Foil Insulation Panel - 0.8 Inch Thickness R-23 material
  • SmartSHIELD - 20mm Reflective Insulation Roll, Foam Core Radiant Barrier, Thermal Foil Insulation Panel - 0.8 Inch Thickness R-23 size
  • SmartSHIELD - 20mm Reflective Insulation Roll, Foam Core Radiant Barrier, Thermal Foil Insulation Panel - 0.8 Inch Thickness R-23 available option
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SmartSHIELD - 20mm Reflective Foam Insulation Roll - Foil / Foil

$119.95 USD
$119.95 USD

Description

The SmartSHIELD 20mm Reflective Insulation Roll reduces heat transfer in homes and industrial spaces. It is a 20mm closed-cell polyethylene foam core sandwiched between double-sided engineered foil. This insulation reflects 96% of radiant heat. Besides, 60% of an average American household's energy bill which is heating and cooling costs can be simply cut with this foil insulation. In winter, it traps heat inside. In summer, it blocks outside heat. Our products are lightweight yet strong and durable. It blocks moisture, slows fire spread, and reduces noise for a safer, quieter space.

SmartSHIELD - 20mm Reflective Insulation Roll, Foam Core Radiant Barrier, Thermal Foil Insulation Panel - 0.8 Inch Thickness R-23 thumbnail
SmartSHIELD - 20mm Reflective..
  • Product Details
  • Materials
  • Application
  • Technical Specs
  • Shipping Info

SmartSHIELD 20mm insulation combines closed-cell polyethylene foam with a radiant barrier to regulate indoor temperatures. The foam core blocks heat conduction, preventing energy loss. The double-sided engineered foil reflects 96% of radiant heat, keeping spaces cool in summer and warm in winter. This insulation can reduce energy bills by up to 60%.

Key Features:

  • 20mm foam core enhances insulation performance and durability.
  • Double-sided engineered foil reflecting 96% of radiant heat.
  • Functions as a vapor barrier to block moisture accumulation.
  • Fire-rated Class 1 / Class A, ensuring safety.
  • Easy to install, cut, and clean for hassle-free application.
  • Non-toxic, skin-friendly, and eco-friendly.
  • Remains effective in high-humidity areas without deterioration.

Discover our full range of reflective foam insulation or browse through our 20mm white reflective foam insulation options to find the perfect fit for your project! 

SmartSHIELD 20mm insulation features a closed-cell polyethylene foam core that traps air to block heat conduction and double-sided engineered foil that reflects radiant heat for better energy efficiency. It is designed to withstand extreme temperatures without losing performance and is waterproof, preventing mold growth and staying intact in humid conditions.

This insulation works for various residential, commercial, and industrial needs:

  • Homes & Buildings – Attics, ceilings, walls, crawl spaces, and foundations.
  • Garages & Sheds – Pole barns, sheds, fish & hunting shelters.
  • Industrial & Commercial – Steel buildings, Quonset huts, cooling rooms, cold chambers, wine cellars, and cavity walls.
  • Floors & Roofing – Concrete floors, radiant heating, roofing, and reflective ceilings.
  • HVAC & Plumbing – Air ducts, water pipes, water heater tanks, and behind radiators.
  • Swimming Pools – Helps maintain consistent temperatures.
  • Other Uses – House wrap, radon barrier, and concrete block walls.
  •  Dimensions:
    • 48" x 10ft
    • 48" x 25ft
  • Thickness: 20mm (0.8 inches).
  • R-Value: R-23 to R-29, depending on installation (indicates high thermal resistance for energy savings).
  • Fire Rating: Class 1 / Class A, safe for homes and businesses.
  • Moisture Resistance: Waterproof and resistant to mold growth
CHARACTERISTICS VALUE STANDARD
FOAM CELL STRUCTURE Closed -
AVERAGE WEIGHT PER m2 0,242 Kg/m2 -
FOAM DENSITY 34-54 Kg/m3 ASTM 1622
PERMEABILITY Waterproof Dir. UEAtc
WATER VAPOR PERMEABILITY 0.033g/m2hkPa-0.05perms(gr/ft2hin.hg) ASTM E-96/IRAM 1735
FLAME INDEX 0 ASTM E-84-10
SMOKE DEVELOPMENT 45 ASTM E-84-10
EMMITANCE 0.04 ASTM C-1371-98
FUNGAL RESISTANCE Resistant/Does't promote fungal growth ASTM C-1338
DELAMINATION Doesn't delaminate ASTM C-1224-99
OPERATING TEMPERATURE -22°F / 180°F ASTM C-1224
THERMAL RESISTANCE R-VALUE *A: 23.00; *B: 29.00 (ft2.h.°F/Btu) ASTM D-638

  • Fast Shipping: Most orders are shipped the same day, with free shipping options available.
  • Returns & Refunds: 60-day money-back guarantee.

Customer Reviews

Based on 22 reviews
86%
(19)
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L
Linda
It works

I have bought 4 of 48x100 rolls and 1 36x50 roll and will be ordering 1 more 48x100 to finish insulating a 40x8 HC shipping container. I used 2 layers of insulation all around, with a 2" air space between layers.I tried several different spray adhesives and tapes to secure it to the walls and cover air gaps. The winner was Gorrila tape. Works great... that knowledge takes the sting out of the price per roll.Most importantly, this stuff is awesome! I noticed a difference with the cold and the heat temps.I'm on my 6th order, so I have bought the product again!

C
Charles Alford
Fast shipping

If you cut in long strips, ie. 8' or16 ' for a double wide door, there is not enough product to complete door. To complete door you must cut in the 48" legenth. Product doors fine

F
Farmer from D., ME
Great for the price

I used this product to insulate from the top of the basement walls to the sills. It was easy to cut and install. There has been a marked difference with no cold air entering the basement.

B
B. Jennings
Makes a big difference

I have used this stuff in a variety of places in my house. It is very versatile for insulating.I put it in the space between the top of my basement walls and bottom of the main floor (inside). The furnace ran noticeably less the first winter (with fiberglass behind it).Because this comes in a roll, the closer to the middle, the more curled the product will be. Bending it in the opposite direction helps. Also, have a plan to secure it down as it will want to bend. Or, set something on top of it and lay it flat for a few days.The 20mm product is 3/4 inch thick and is best cut with a serrated knife or scissors.

J
J. Gates
Super expensive for the amount of effectiveness

We had high hopes this stuff would be much more effective than it turned out to be. In the end, we will be going with much more inexpensive alternatives in the future which will yield equal results for the time being until we decide to commit to a more permanent solution with 3" insulating foam board or something. If you have the money and want the slightest edge, maybe it's worth it for you but it just wasn't enough for skirting our RV.

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FAQ

Yes, it is durable and weather-resistant, making it suitable for outdoor use.

SmartSHIELD 20mm insulation is non-toxic and skin-friendly. It does not cause irritation, blocks radiant heat better than fiberglass.

Yes, it is lightweight, easy to cut, and allows for quick installation.

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