How to Insulate a Concrete Floor from Cold?

How to Insulate a Concrete Floor from Cold?

To keep your damp basement, you may consider on how to insulate a concrete floor from cold. You might be digging on the cold concrete floor solutions or even the best insulation over concrete floor.

Did you know that concrete floor is porous?

Yes, you heard it right. Concrete floor on your basement is porous and makes the moisture from the ground flows easily through the board.

Therefore, the moisture over the concrete will become higher and have the potential to damage the flooring materials. If your basement is set to be a vehicle-storage, the moisture will affect them too.

Installing floor insulation will help you to reduce the heat loss as well as saving your energy bills. In addition, the heat inside your basement won’t sink in to the soil by using insulation. Thus, you can save your things that are placed inside the basement.

how to insulate concrete floor from cold

This insulation method would be good as well for those who has been thinking about upgrading a garage to a living space or even a bedroom.

But, real question is, how to insulate a concrete floor from cold? Is it possible to do without a help?

Here we have explained the basic guide of how to insulate a concrete floor from cold.

Keep on digging in this article!


  1. Make a judge on the condition of your concrete floor.
  2. Next, you need to detect which floor comes with moisture issues.
  3. Remember to measure the level carefully and ensure the smoothness.
  4. Calculate the distances between the boar and the ceiling.

Quick tip:

We suggest you leave about 7 feet, 6 inches level. That way, you can estimate the increases that will take up to 2 inches.

So, have you set all the things up? We suggest you to double check the tools and other materials to prevent you from going back and forth to the local store during the installation.

Once you’re done with the preparations, means you’re ready to hang on to the installation. These steps could either be a one person standing to do the whole process or with a hand of help. We bet 2 people will be more ideal to create a fair and solid insulation.

The Installation

  1. Clean the surface before starting the insulation installation to achieve even layers.
  2. Lay a thin layer of asphalt primer to bond the asphalt cement firmly.
  3. Follow label directions and allow it to dry thoroughly.
  4. Lay out the board on each edges side by side in one direction.
  5. Put sleepers at the end of board. You need to nail them to ensure they stick to each other.
  6. When you’re finished nailing the sleepers, you can place 1 ½ -inch of rigid foam in between them strips should be about 12 ½ inches.
  7. Last but not least, put ¾ inch plywood board over the sleepers.
  8. Then, you may want to nail them every 6 inches apart. Make sure the sleeper meets every 12 inches of under panel centers.
  9. Top off the finished flooring with any insulation materials you prefer.


To conclude, insulating your concrete floor is such a good idea to keep the moisture and prevent heat loss. The installation is also easy to follow and can be done in one sitting. But, we still recommend you to provide a help of hand in order to make the installation process goes smoothly.

Once you’re done insulating your concrete floor, you will feel constant comforts level up without splurging your money on energy bills. Not to forget, we suggest you to remain on the product’s instructions. Because, each products have different materials and guidance to perform at its best.

When insulating a concrete floor, keep in mind that sizing is important to prevent any bad performance. Since the floor on your basement is fairly porous, any leakage sites will migrate the moisture and affects the barrier.

If you’re still confused, we advise you to do more digging on how to insulate a concrete floor from cold. Watching a Youtube’s video tutorial might be helpful as well. All in all, we hope you find this article beneficial for you.

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Insulator is a skilled author and Insulation expert with years of experience in the field. He has authored several articles and books on various aspects of insulation installation, maintenance, and repair.