Radiant Floor Insulation
Direct Heat Upward. Warm Floors Faster. Save Energy
Keep your floors warm, improve comfort, and save on energy bills with Energy Shield reflective insulation for radiant floors. Designed to heat your living space—not the subfloor or ground below—our insulation reflects heat upward, reducing energy loss in wood floors, concrete slabs, and crawl spaces. Faster warm-up, more consistent temperatures, and lower operating costs—your radiant heat floor insulation system works smarter with ES®.
Reflective insulation keeps heat in your living space, not the subfloor. Enjoy faster warm-up, consistent temperatures, and lower energy costs in wood floors, concrete slabs, or crawl spaces.

Send Heat Up Where It Counts
Energy Shield® reflective insulation keeps radiant heat moving upward into the living space for faster floor warm-up and better efficiency.

Simple To Install
Flexible, lightweight, and easy to handle, ES® insulation installs quickly under floor radiant heat systems, whether new construction or retrofit.

Saves Energy & Money
Without reflective insulation, heat is lost downward into the subfloor. ES® radiant floor heat insulation redirects this energy upward, improving comfort and lowering operating costs.
How Radiant Floor Insulation Works
Radiant floor systems heat your living space using infrared energy, which naturally rises from the floor to warm the room. Without insulation, much of this heat escapes downward into the subfloor or ground, reducing efficiency and increasing energy costs.
- Reflects infrared heat: Bounces radiant heat back toward the finished floor surface.
- Reduces conductive heat loss: Blocks heat from escaping into the subfloor.
- Improves system efficiency: More heat stays in your living space.
- Works under any floor type: Ideal for wood, concrete, and crawl spaces.
The result: Faster warm floors, consistent temperatures, and lower energy bills.
Reflective Radiant Floor Insulation That Saves Energy
ES® Reflective Insulation acts as a thermal mirror, keeping heat moving upward into your living space. This improves system efficiency, ensures consistent floor temperatures, and reduces energy costs.
ES® Radiant Floor Insulation Products
ES® Radiant Floor Insulation Products

Key Features
- Rigid foam insulation core with dual reflective foil facings
- Reduces radiant and conductive heat loss
- Ideal for high-performance radiant floor systems

Key Features
- Lightweight dual-foil reflective insulation core
- Easy to cut and install on curved or straight floor runs
- Reflects radiant heat upward for consistent warmth
Stop Heat From Slipping Away
Insulating beneath your radiant floor system is essential. It ensures your heating investment delivers maximum comfort while reducing energy use all season.
INSTALLATION OPTIONS
Energy Shield® reflective radiant floor insulation adapts to a variety of floor assemblies, making it easy to install in new construction or retrofit applications.
BETWEEN FLOOR JOISTS

Radiant Heat Insulation
- Ideal for wood subfloor appliations
- Retains heat and improves system efficiency
UNDER FLOOR JOISTS

Radiant Heat Insulation
- Flexible installation for various subfloor types
- Lightweight and easy to handle
UNDER CONCRETE

Radiant Heat Insulation
- Works in slab-on-grade radiant floors
- Reflects heat upward for consistent warmth

Benefits of Radiant Floor Heating with ES® Reflective Insulation

Why Choose Energy Shield Radiant Floor Insulation?
Radiant Floor Insulation FAQs
Radiant floor heat insulation is reflective material installed beneath your radiant floor system to reduce heat loss downward, improving efficiency and keeping floors warm faster.
It reflects radiant heat back toward the finished floor surface, preventing energy from escaping into the subfloor or ground and enhancing system performance.
Yes. ES® reflective insulation works under concrete slabs, wood floors, and crawl spaces to ensure heat is directed upward.
Yes. ES® insulation is flexible, lightweight, and can be cut to fit curved or straight runs, making it suitable for DIY or professional installation.
Faster warm-up, consistent temperatures, lower energy bills, improved indoor comfort, and safe floor surface temperatures.
Absolutely. ES® radiant floor insulation is compatible with both new builds and retrofit applications.
