Which insulation is better in the density in kg/m3 – what it affects

Insulation is essential for maintaining both comfort and energy efficiency in your home. Nonetheless, did you realize that not all insulation is made equally? The density of the insulation, which is commonly expressed in kilograms per cubic meter (kg/m3), is one crucial aspect to take into account. When considering insulation, density may not be the first thing that comes to mind, but it has a big influence on how well it works.

What does density actually mean in terms of insulation, then? Density, put simply, is the degree to which the insulating material is packed closely. In comparison to insulation with a lower density, insulation with a higher density packs more material into the same volume. This density factor can have an impact on the insulation’s durability, heat conductivity, and even sound-dampening properties.

Thermal conductivity, or an insulation’s capacity to withstand heat transfer, is one of the main ways density influences insulation. Higher density insulation materials are generally more effective at keeping heat from escaping or entering your home because they have lower thermal conductivity. This is so that you can reduce energy loss and ultimately save money on your heating and cooling bills because the denser material forms more barriers for heat to pass through.

Durability and lifespan of the insulation are significant factors that are impacted by its density. Higher density insulation is frequently more resilient and less likely to settle or compact over time. This implies that it can continue to function well for extended periods of time and deliver reliable thermal performance over time. Conversely, insulation with a lower density could deteriorate more quickly, resulting in less energy efficiency and a greater need for replacements.

Insulation density can affect an insulation’s capacity to stop noise transmission in addition to its thermal performance and durability. Higher density insulation materials are great for cutting down on noise coming from the outside or moving between rooms in your house because they tend to be more effective at absorbing sound waves. Therefore, if you value quiet, selecting insulation with a higher density could contribute to the creation of a calmer interior space.

In conclusion, even though it might not be the most glamorous factor to take into account, insulation density is a crucial factor in determining how long it will last and how effective it will be. Knowing how density affects durability, sound absorption, and thermal conductivity will help you choose the right insulation for your house. In the end, spending money on insulation with the appropriate density can result in increased comfort, cost savings on energy, and general contentment with your living area.

Insulation Type Effect of Density (kg/m3)
Fiberglass Higher density increases thermal resistance, reducing heat transfer.
Cellulose Higher density provides better soundproofing and fire resistance.
Spray Foam Higher density improves air sealing and moisture resistance.

When it comes to insulating your home, choosing the right density for insulation materials is crucial. The density of insulation, measured in kilograms per cubic meter (kg/m3), affects its effectiveness in preventing heat transfer. Generally, higher density insulation provides better thermal resistance, meaning it can help keep your home warmer in the winter and cooler in the summer. However, it"s essential to strike a balance, as excessively dense insulation can be challenging to install and may not offer significant additional benefits compared to moderately dense options. Additionally, the choice of density depends on various factors such as the climate, building design, and budget. By understanding how density impacts insulation performance, homeowners can make informed decisions to improve energy efficiency and comfort in their homes.

Density value when choosing insulation

When selecting insulation, one must consider its density, or specific gravity, which is calculated as the mass of a substance per cubic meter of material (usually measured in kilograms).

The following characteristics are modifiable based on the thermal insulation density:

  • The denser the elements of the base are, the stronger the heat insulator. In the designs on which significant loads act, it is recommended to use a denser material (from 150 kg/ms). This will help to avoid deformations and damage to thermal insulation, and also extend its service life.
  • The indicator of the density level of thermal insulation material affects thermal conductivity. The air has good heat -insulating properties. In mineral wool heat insulators, a large number of fibers with air bubbles (between them), if you increase the density of mineral wool (compressing it), then the number of bubbles will decrease, thermal conductivity, as a result, will decrease.

  • The value of the specific gravity affects the level of noise reduction. A decrease in air permeability entails a decrease in sound -resistant qualities.
  • With an increase in density, the mass of heat insulators increases, and it becomes difficult to work with them.
  • The installation method is also determined by the value of the proportion. It is preferably to attach more dense objects to the walls, on lattice frame structures – lighter. For a low -insulator with a low density (polystyrene, foam, mineral wool, foam, polystyrene, polystyrene), additional protection is necessary.
  • The cost of the product can also increase directly with an increase in specific gravity.

Classification of heat -insulating building materials

Building materials that provide thermal insulation are categorized in different ways. Their separation based on manufacturing material and specific gravity is the most helpful.

By specific gravity

  • Ultra -light substances. These include foam and polystyrene foam used to thermal insulation of internal partitions and walls of buildings.
  • Lungs. This category includes mineral wool. Their advantages: relatively small weight and thermal conductivity.
  • Middle weight category. These are: foam glass, blocks and slabs made of polystyrene foam and glass wool, as well as other types of dense insulation. In addition to good heat -insulating properties, they are also used as sound insulation, however, in the territory of the Russian Federation they have not been widely used.
  • Heavy. This category includes high -pressure mineral wings compressed under high pressure. Have high wear resistance, moisture resistance, hold heat well.

According to the material of manufacture

The types of materials that are distinguished are as follows:

  • Mineral wool. Differ in universality in use. Mineral wool density is in the range from 30 to 200 kg/mz. The indicator depends on the thickness and number of fibers of the substance.

Take note: Wet minvata loses all of its ability to retain heat.

Mineral wool is made into felt, mats, and Ministry of Plutes in different densities.

Mineral wool density in kg/m3 is shown in Table 1:

Types of building materials The density of mineral wool insulation in kg/m3 Thermal conductivity, W/m0s Maximum temperatures Combustibility Application In the manufacture, they are used
Mats 50 … 85 0.046 700 NG Thermal insulation of pipes
Light plates 20 … 40 0.036 400 NG Synthetic resins
Soft plates 50 … 75 0.036 400 NG
Semi -rigid slabs 75 … 125 0.0326 400 NG Thermal insulation of the floor Resins, bitumen
Hard plates 175 … 225 0.043 100 G1 Thermal insulation of the floor, walls
Cylinders 200 0.046 400 NG
Lovely cotton wool thirty 0.05 600 NG
Mark Minvata Density
P-75 75
P-125 125 (110.120, 130)
PZh-175 Increased density
PZH-200 200
  • Foamed polyethylene-has a standard density of up to 25 kg per cubic meter, thickness 8-10 mm, but with a layer of foil reaches 55 kg per mz. This additional layer is able to increase its heat efficiency due to the reflection of heat.

  • Styrofoam. Density limits 80–160, in polystyrene foam – 28–35 (one of the lightest materials of this group).

  • Penoizole has a specific gravity: 10 kg/mz, is produced in liquid form and sprayed onto the working surface. The additional protection of the frozen sprayed layer is mandatory using plaster (for example).

  • Foam glass is a fairly heavy material – 200-400 kg/m3, but there are light versions (100 – 200 kg/m3). Most often used for decoration of buildings facades.

The scope of insulation with different limits of the substance density Table 3: Features of the use of heat insulators.

Heater density, kg/mz. Application area.
Up to 100 kg/ms:
11–35 Roof and roof insulation.
35–75 Thermal insulation of walls and partitions inside residential premises. Widely distributed.
75–100 Reducing heat loss of various kinds of pipes (oil pipelines, heating mains, ventilation).
From 100 to 150 kg/ms:
100–125 Warming of ventilated and siding facades of buildings.
125–150 Thermal insulation of reinforced concrete walls, cladding brick masonry, floors between floors.
From 150 kg/mz
150–175 Building the load -bearing buildings.
175–225 Black layer of flooring.

Principles of selection of floor insulation and walls of the room

Wall insulation

It is evident from the above table that the following factors influence the choice of insulation density for walls:

  • Structures and material of the structure;
  • The location of the insulation (inside or outside).

The choice is also influenced by the kind of faced material. Light-weight raw materials (40–90 kg/m3) can be used for siding. The heat insulator mass under the plaster should vary between 140 and 160 kg/mz.

The density of the heat insulator increases with building height.

It’s important to choose a material with properties similar to wood when warming wooden walls outdoors, such as fiberglass or basalt. Brick walls are less picky about the kind of insulation they receive.

Speaking of which, Basalt wool is the recommended material for wall insulation because of its exceptional fire and environmental safety.

Materials with heterogeneous stiffness and sandwich panels are options for external insulation. They are done in two layers: the soft layer is affixed to the building, and the hard layer is plastered on the outside.

Lighter materials are used for insulation in mansard walls.

Be aware that you must rule out a large rise in load when selecting a heat insulator for walls.

What density should there be a heater for the floor

Since it should be strong, the specific gravity is raised from 90 kg/mz. Smaller indicators can be used in the lag field because there is essentially no load on it.

It is best to use extruded polystyrene foam for the floor. Only in the lag locations is mineral wool used.

Speaking of which, The protective layer should be mounted after it has been laid, taking into account the material’s ignorance and combustibility, with a heater density of up to 150 kg/mz.

Selecting the appropriate insulation for your house is essential to preserving both energy efficiency and comfort. The density of the insulation material, expressed in kilograms per cubic meter (kg/m3), is one crucial parameter to take into account. Density has an impact on durability, sound absorption, thermal conductivity, and other aspects of insulation performance.

Because there is more material packed into a given space, higher density insulation typically performs better thermally because it reduces heat transfer through the insulation. Accordingly, denser insulation can help keep your house more comfortable for you and your family by keeping it warmer in the winter and cooler in the summer.

A balance must be struck between density and other considerations like cost and installation requirements, though. Although insulation with a higher density may perform better thermally, it can also cost more and be more difficult to install. Furthermore, not all applications will benefit from very high-density insulation materials, and some may call for special handling.

Conversely, while less expensive and simpler to handle, lower density insulation materials might not offer as good of a thermal performance as alternatives with a higher density. When selecting insulation for your house, it’s critical to carefully assess your unique requirements and priorities while taking your budget, climate, and long-term energy savings into account.

In summary, the performance and effectiveness of insulation material in ensuring thermal comfort and energy efficiency for your home are significantly influenced by its density. Even though insulation with a higher density often performs better thermally, you still need to take other aspects like cost, installation requirements, and application suitability into account. Making an educated choice after carefully considering these variables will help you make sure your house is adequately insulated for both maximum comfort and energy savings.

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Michael Kuznetsov

I love to create beauty and comfort with my own hands. In my articles I share tips on warming the house and repairing with my own hands.

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