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SmartSHIELD -5mm 24''X50ft Reflective Insulation Roll, Foam Core Radiant Barrier, Thermal Foil Insulation - Engineered Foil

SmartSHIELD -5mm 24''X50ft Reflective Insulation Roll, Foam Core Radiant Barrier, Thermal Foil Insulation - Engineered Foil

Q: How is everyone securing this to their rv windows? we don’t want to use spray adhesive as suggested by a few reviews. thanks.

We used industrial strength Velcro. Lined the edges and bottom of each window just outside the window frame and cut the insulation to match. The industrial strength Velcro adhesive has continued to hold up even with 100+ degree days. This way we can remove it when we want. And it doesn’t look bad - nice and tidy over the windows.

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

In the description... R-value up to 15.67 ( with one layer), up to 21.10 ( with two layers).

Q: Has anyone used this over crawl space vents to keep it warmer during winter?

It would work well, cut 3/8" larger than both dimensions and press fit. I should caution you, unless you are having a problem with freezing pipes, you should never close the vents in the winter, moisture will collect on the underside of the house above the insulation causing mold. Air movement in the un-conditioned space under your house is critical.

4.6/5

Product ID: 246732091

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Details

Material
Aluminum
Brand
INSULATION
Coverage
[Broad]
Item Thickness
5 Millimeters
Recommended Uses For Product
Attics walls &

💧Vapor & moisture barrier

🔥Reflects 95% radiant heat

🛡️Class A fire rating

Description

🛠️ Elevate your space with SmartSHIELD — where cutting-edge insulation meets next-level efficiency!

EFFORTLESS INSTALLATION - Lightweight 24''x50ft roll easily cut with scissors—perfect for any professional project.
ULTIMATE THERMAL DEFENSE - Reflects up to 95% of radiant energy, slashing your energy bills year-round.
ALL IN ONE BARRIER SOLUTION - Combines insulation, radiant, vapor, and sound barriers in a single premium roll.
CERTIFIED SAFETY PERFORMANCE - Meets ASTM C1313 standards with a Class A fire rating for peace of mind.
BUILT TO LAST BUILT TO PROTECT - Industrial-grade foam core with tear & puncture resistance for long-term durability.

SmartSHIELD -5mm Reflective Insulation Roll is a commercial-grade, foam core radiant barrier that reflects 95% of radiant heat, offers an R-value up to 21.10 with double layers, and features a vapor barrier to prevent moisture buildup. Engineered to meet ASTM C1313 standards with a Class A fire rating, it’s tear and puncture resistant yet easy to install, making it the ultimate all-in-one insulation solution for professional-grade thermal and moisture protection.

Have a Question? See What Others Asked

How is everyone securing this to their rv windows? we don’t want to use spray adhesive as suggested by a few reviews. thanks.

What is the R Value of the 5mm?

Good to keep the heat in? Fig I could use it to cover my window

Has anyone used this over crawl space vents to keep it warmer during winter?

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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€ 172.49

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Slovakiastore

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago