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.

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).

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.

Smartshield 5mm Foil Foil | Desertcart Israel

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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Description

Insulate Smart, Live Smart! 🏡

DURABLE DESIGN - Tear and puncture proof, yet easy to cut for custom applications.
NON TOXIC SAFETY - Safe for all environments, non-irritating and allergy-friendly.
REFLECTIVE POWER - Reflects 95% of radiant energy for maximum efficiency.
HUMIDITY RESISTANT - Unfazed by moisture, ensuring long-lasting performance.
COST EFFECTIVE SOLUTION - Reduces heating and cooling costs, paying for itself over time.

The SmartSHIELD -5mm Reflective Insulation Roll is a high-performance thermal barrier designed to reflect 95% of radiant energy, boasting an impressive R-value of up to 21.10 with dual layers. Engineered for industrial and commercial use, it meets all ASTM C1313 standards, is tear and puncture proof, and features a non-toxic, moisture-resistant design that ensures safety and durability.

Specifications

ASIN	B08JS7TK93
Best Sellers Rank	#59,334 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #269 in Weather Stripping
Brand	INSULATION MARKETPLACE
Brand Name	INSULATION MARKETPLACE
Coverage	2500 square feet
Customer Reviews	4.7 out of 5 stars 993 Reviews
Item Dimensions L x W	600"L x 48"W
Item Thickness	5 Millimeters
Manufacturer	Insulation Market Place LLC
Material	Aluminum, Polyethylene (PE)
Material Type	Aluminum, Polyethylene (PE)
Model Number	SmartSHIELD -5
Product Dimensions	600"L x 48"W
Recommended Uses For Product	Metal Building insulation, Steel building insulation, Pole Barn insulation, Attics, Ceilings, Walls, Steel Buildings, POLE BARNS, Roofing, Concrete Floor, Radiant Heat in a Concrete Floor, Radiant Heating, Water Heater Tank, Water Pipe and Air Duct, Crawl Space, In Ground Swimming Pools, Shed, Fish & Hunting Shelter, Cooling Room, Cold Chamber or Wine Cellar, Concrete Block Wall, Cavity Wall for Metallic Studs in Commercial Buildings, Foundation Wall, Quanset Hut, House Wrap. Recommended Uses For Product Metal Building insulation, Steel building insulation, Pole Barn insulation, Attics, Ceilings, Walls, Steel Buildings, POLE BARNS, Roofing, Concrete Floor, Radiant Heat in a Concrete Floor, Radiant Heating, Water Heater Tank, Water Pipe and Air Duct, Crawl Space, In Ground Swimming Pools, Shed, Fish & Hunting Shelter, Cooling Room, Cold Chamber or Wine Cellar, Concrete Block Wall, Cavity Wall for Metallic Studs in Commercial Buildings, Foundation Wall, Quanset Hut, House Wrap. See more
UPC	686091709383
Unit Count	1.0 Count

Reviews

A**A

10.06.2024

D**R

1.01.2023

A**R

29.07.2025

W**S

4.07.2023

H**O

25.01.2023

L**U

11.01.2026

L**L

6.10.2025

S**E

5.12.2025

G**S

8.07.2025

L**M

27.08.2023

S**U

2.05.2024

A**R

18.02.2025

J**S

25.11.2023

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SmartSHIELD-5mm Foil/Foil

Details

Details

Description

Specifications

Reviews

Common Questions