• Prevent condensation with Bubble Insulation

    Prevents mold & mildew

    Keeps moisture out of your crawl space and creates a vapor barrier when seams are taped.

  • Crawl space insulation keeps home warmer in winter

    Reflects radiant heat

    Reflective insulation redirects heat back into your home, making your floors warmer in winter.

  • Increasing efficiency of HVAC systems

    Increases HVAC efficiency

    Saves money year-round by preventing heat gain/loss
Crawl space not insulated

A poorly insulated crawl space could cost you a fortune.

In cold winter months, warm indoor air can easily escape into your crawl space, forcing your HVAC system work extra hard to regulate your indoor temperature. In warmer months, air that is damp and warm can seep into your home, causing your air conditioning to work harder. Regardless of the outdoor temperature, radiant heat can easily flow through your crawl space in both directions. By installing reflective bubble insulation, you can fix these problems and ensure your home is safe from moisture and mold.

See how it works

15% of heat loss can be attributed to a poorly insulated crawl space

When you install reflective bubble insulation under or between floor joists, it will reflect radiant heat back into your home. This can save you a great deal on energy bills and prolong the life of your HVAC system.

Floor Joist Insulation 16 inch x 125 foot 166.63 sq. ft.

recommended product:

Floor Joist Insulation - 16" x 125' (166.63 sq. ft.)

Reflects heat and controls condensation in extreme/colder climates

$89.00
$89.00
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Recommended products: Bubble Foil Insulation

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Moisture and mildew in walls

Prevents moisture from entering your crawl space.

When placed on the floor of your crawl space, reflective insulation can work as a vapor barrier—ensuring that moisture from the ground doesn't seep in and lead to issues like mold, mildew, odors, and other moisture-related problems. In order to maintain a vapor barrier, make sure to tape the seams with reflective insulation tape.

What you'll need for installation:

  • Scissors and knife for radiant barrier installation

    Scissors or utility knife

  • Insulation tape for radiant barrier

    Reflective insulation tape

  • staple gun

    Staple gun and 3/8" staples

  • Install radiant barrier with 1-2 people

    1–2 people

Crawl Space Insulation Installation Instructions:

Crawl space insulation — under floor joists

Crawl space insulation — under floor joists

Attach floor joist insulation to the bottom of floor joists in your crawl space

Download Instructions (PDF)
Crawl space insulation - in between floor joists

Crawl space insulation - in between floor joists

Install floor joist insulation between joists. Choose 16" or 24" wide Floor Joist Insulation

Download Instructions (PDF)

Crawl Space Insulation

Why Use EcoFoil In Your Crawl Space?

  • Reflects 96% of radiant heat - Find out how a radiant barrier works
  • Helps keep heat inside your house
  • When used in a crawl space floor it prevents moisture from entering the crawl space
  • Bubble insulation is a full vapor barrier when seams are taped
  • Very durable and can't be ripped or torn by hand
  • Lightweight and easy to handle
  • Safe to handle and requires no special clothing or breathing equipment

More About Crawl Space Insulation

Crawl space insulation in your home is more important than you may think. 15% or more of a home's total heat loss can be attributed to an improperly insulated or un-insulated crawl space. Reflective insulation is an excellent product to use for insulating a crawl space. It is strong, light weight and very clean to install, unlike fiberglass insulation. EcoFoil Bubble Insulation provides a moisture vapor barrier (when seams are taped), controls temperature and prevents cool, damp air from invading the floor above. Rolls of reflective insulation are made to fit between empty floor joists or stapled right across the bottom for unfinished applications.

When installed in a crawl space, or between floor joists, EcoFoil reflective insulation keeps your home's floors warmer in your living area above while regulating temperatures below as well.

Crawl Space Insulation Reviews:

Customer Reviews

Based on 40 reviews
93%
(37)
5%
(2)
3%
(1)
0%
(0)
0%
(0)
97.5
97.5
M
Micheal Hatch
Easy to work with

Nice product and fits great on 16” on center floor joist!!!!

L
Linda Ormond
Floor Joist Insulation 16” x 125’

This is a great product. It’s very easy to install and looks fantastic.

T
Timothy Frederick
Durable product

Seems like a great product. I really hoping the reflective surface does what it says. I have hydronic floor heat on the first story of my house. Most of my heat ended up in the basement last year because of no insulation.
Will do a follow up as winter progresses.

J
John Krajewski
Great

Just what I needed to supplement my retro fit insulation job

R
Ronald Benage

Floor Joist Insulation - 16" x 125' (166.63 sq. ft.)

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