Do I need insulation under a concrete floor?

Do I need insulation under a concrete floor?

Insulate floor humidity

All materials have resistance, to a greater or lesser extent, to the passage of heat through them. Some are very low, such as metals, others have a medium resistance, as is the case of building materials (plaster, bricks, mortars, etc.). Those materials that offer a high resistance are called insulating materials.

Therefore, the definition of thermal insulator is that material used in construction and characterized by its high thermal resistance, establishing a barrier to the passage of heat between two media that would naturally tend to equalize in temperature.

For this reason, porous or fibrous materials such as mineral wool (rock or glass wool), expanded polystyrene, extruded polystyrene, polyurethane foam, cork, etc., are used as thermal insulation.

Extruded Polystyrene (XPS) is a durable, waterproof, high mechanical performance and does not rot. Placed on the waterproofing (inverted roof), in addition to insulating, it protects the waterproof membrane and improves its durability.

Insulating underlayment

What materials can we use as thermal insulation for roofs and maintain the temperature of our home? When winter or summer arrives and we have to turn on the heater or air conditioning, we are worried about the energy leakage that may exist.

The roof is one of the places that can have more energy leakage, placing a proper thermal insulation layer can save up to 25% of energy. Living in a more comfortable environment at a lower price depends on some improvements in the roof of our house.

These 4 materials are the most used for the roof of a family house. They protect us from rain, cold, sun and danger. However, in some regions of the country we may need an efficient roof insulation to live comfortably and save energy inside. Consult with the best construction professionals.

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By day, the dark shade will absorb all the sun’s energy and at night it will continue to emit the heat absorbed during the day as if it were a radiant slab. While a light colored paint will reflect the sun’s rays and heat, keeping the interior environment a little cooler.

Floor insulation materials

Hi all. I have to raise a floor 25 cm, I am going to raise it with loose gravel/machaca without sand and then pour 10 cm of concrete on top of the gravel with a plastic in between to avoid humidity. My question is, I have seen that it is being done a lot to put XPS panels also on floors, but this involves having to put the XPS on top of the concrete and then place it and make cement screed with mesh, so it takes much more space (I would have no problem), but it is more material, more labor … and necessary?

And insulation in screed in living spaces, I think it is almost always necessary. You just have to do the calculations with the 2 variants and see how much the demand varies. It would be good to do that exercise.

The heat always goes from the hottest source to the coldest, another thing is the transmission mechanisms (conduction, radiation and convention), the part of heat that is transferred by convention tends to go upwards, but not because it is hot, but because the cold air goes down to have higher density and pushes the hot air upwards.

Thermal floors for houses

Concrete floors are non-structural elements designed to provide a horizontal surface in certain areas of buildings, either as a definitive finish or as a base to receive other types of pavements.

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As they are non-structural elements, they are often carried out by multipurpose workers, that is to say, without specialization in concrete work, so that important procedures that must be taken into account when working with this universal construction material are often overlooked.

There are many conditions that must be taken into account to correctly execute a concrete subbase, so we will try to comment at least the most important ones, without the depth required, since entire books could be written about it, but without neglecting to comment the most relevant points.

This subbase is a mixture of sand and gravel and its mission is to distribute the loads on the subgrade, so it must have a sufficient compactness to be able to transmit them to the subgrade (normally 95% of the proctor).

Do I need insulation under a concrete floor?
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