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Redirects heat upwards
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Energy efficient
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Easy to install
Reflective Insulation under Radiant Floors will save you money
Radiant floors will naturally push heat in all directions. For maximum efficiency in a radiant floor, it's always wise to direct this heat upward towards the floor. The best way to redirect radiant heat is with EcoFoil Reflective Insulation.
Redirect radiant heat back up to your floor
Radiant floors can be an expensive, yet worthwhile, investment. With rising electric costs, it's more important than ever to take the necessary steps to ensure maximum efficiency in your radiant floor system.
Ultra CBF Under Slab Insulation - 4' X 75' (300 sq ft)
Provides thermal barrier under concrete slabs and radiant floors
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EcoFoil offers a variety of radiant floor insulation solutions
Under Joists
If you're installing a radiant floor on an upper level and there are exposed joists underneath, we recommend 4' Double Bubble Reflective Insulation, available in a Foil/Foil or White/Foil finish.
Between Joists
Install Between Joist Insulation, precut to 16" or 24" widths.
Radiant Floors Under Concrete
For radiant floors in basements, garages, or other outdoor concrete applications, we recommend Ultra CBF Under Slab Insulation. For more information on insulating under concrete, see Under Concrete Slab.
What you'll need for installation:
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Scissors or utility knife
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Staple gun
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Tape (under joist application only)
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1-2 people
Radiant Floor Insulation Installation Instructions:
Radiant Heat Insulation (Under Floor Joists)
Download Instructions (PDF)Radiant Floor Insulation (Between Joists)
Download Instructions (PDF)Radiant Floor Insulation (Between Joists, Above Drywall)
Download Instructions (PDF)Radiant Snow Melt Slab
Download Instructions (PDF)Radiant Floor Insulation (Under Concrete)
Download Instructions (PDF)Radiant Floor Insulation (on top of wood floor)
Download Instructions (PDF)Radiant Floor Insulation
Why Use EcoFoil Radiant Floor Insulation?
- Effective in all temperatures - even extreme heat and cold
- Strong, lightweight, flexible, and safe to handle with no special clothing or equipment
- Durable and long-lasting
- Extremely easy to install
- Easy to cut and staple, nail or glue into place
- Reflects up to 96% of radiant heat - see How a Radiant Barrier Works
- Waterproof, non-absorbent surface
More About EcoFoil Radiant Floor Insulation
Radiant floor heating is becoming more common in new home construction. There are many floor insulation options—concrete floor insulation (see our Under Slab Insulation page), under floor insulation, crawl space floor insulation, sub floor insulation, mobile home floor insulation, in floor heating insulation, hardwood floor insulation, insulation between floor joists, floating floor insulation, and even soundproof acoustic floor insulation, to name a few.
There are many aspects to consider with insulation for radiant floor heating. If you’re looking for cost-effective floor insulation or DIY floor insulation, reflective foil is a great option. Radiant floor heating is popular for many reasons:
- Sub floor insulation creates a comfortable and warm floor that will have you walking barefoot all winter long.
- Air quality is improved because radiant heat does not stir dust particles or remove moisture from the air like traditional forced air systems.
- Radiant floor insulation is safe because it has no surface that could produce burns.
- Under floor insulation is also unobtrusive and environmentally conscious.
In order to receive all of these benefits of floor insulation, under floor insulation must be installed properly. Radiant heat—by its nature—will want to radiate in all directions, so it's important to use the right radiant floor heating product for your application. If you have any questions about your install, we'd be delighted to help! Send us a chat, call us at 888.349.3645 or fill out the form here.