How to Warm a Concrete Floor

Updated February 21, 2017

Though concrete is termite-proof and can be sealed to prevent moisture from seeping in, it still may be cold. Some homeowners paint a concrete floor to make it more aesthetically pleasing or lay carpet to give the feeling of warmth. Still, the floor remains cool. A space with a concrete floor can be warmed with space heaters, but the floor itself will not warm because hot air rises. The solution is to install radiant heating.

Measure the dimensions of the room with a tape measure. Write down the room's measurements on a notepad for reference.

Cut radiant floor mats to conform with the dimensions of the concrete floor using scissors. Lay the radiant floor mat over the concrete floor to make sure the cuts were right and the mats fit properly. Glue the mats down using compatible adhesive with a glue gun or brush. The mats should have just enough glue to hold them in place.

Connect the mats to one another to get an uninterrupted flow of current. Run the wires through conduit to an outlet or to an electrical panel with a heat sensor run in tandem to monitor the radiant heat mats' temperature. Install a thermostat to control the temperature. Turn on the mats at a mildly warm temperature to test them. Allow the mats to cool to room temperature.

Spread thin-set mortar over the radiant heat mats with a trowel. Be careful not to knick or cut into the radiant heat mats with the point or edge of the trowel. Let the thin-set mortar dry for at least one day or as long as directed by the manufacturer.

Install ceramic tile over the thin-set mortar by spreading latex mortar over it with a trowel. Lay the tiles starting in the centre of the room, working outward toward the walls. Place spacers between each tile and let the latex mortar set for at least one full day. Remove the spacers and grout between the tile joints with a trowel. Clean up grout as you go with a damp cloth.

Things You'll Need

  • Tape measure
  • Scissors
  • Radiant heating mats
  • Thermostat
  • Heat sensor
  • Glue gun or brush
  • Thin-set mortar
  • Trowel
  • Conduit
  • Ceramic tile
  • Grout
  • Spacers
  • Latex mortar
  • Cloth
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About the Author

Owen Richason grew up working in his family's small contracting business. He later became an outplacement consultant, then a retail business consultant. Richason is a former personal finance and business writer for "Tampa Bay Business and Financier." He now writes for various publications, websites and blogs.