Types of insulation for walls inside the house in Sydney

Insulation for walls can be internal or external. When choosing insulation that is suitable for the walls of a house, it is customary to choose the option of external insulation. But in some cases, external work is completely impractical, and then it is worth thinking about insulating the building from the inside. In what cases is it better to choose internal insulation? Types of wall insulation – which one to choose?

Cases in which it is worth insulating a house from the inside:

-If insulation was included in the project from the very beginning. Then the insulating material is reinforced with the same insulation that was used at the time of construction.
-The outer side is combined with an unheated room.
-Behind the wall of the building there is an expansion joint between the buildings.
There are many materials for wall insulation. Each of them differs from the other in the ingredients in its composition and installation features. Therefore, in the selection process it is worth paying attention not only to differences in price. It is worth considering the characteristics of each material.

Types of insulation for walls from the inside

Insulation for walls in a private house is mainly divided by type of thermal insulation. In order to make a smarter choice, we will consider each of the options in detail.


The name of the insulation used to insulate walls often determines its composition. Stone wool is made from rocks, usually characterized by basaltic or metamorphic origin. Basalt rocks are considered to be of the highest quality, but in many ways the quality of the product depends not even on the rock itself, but on the carbonate additives used in the production process. The more acidic the additive, the stronger the stone wool.

The thermal insulation material also contains binders that serve to hold the fibers of the material together. These substances are usually synthetic; they contain substances and impurities that create a waterproof material.

In the process of modern production, a special component is used – glass fiber or, as it is also called, “Pele’s hair”. A feature of this production is the importance of separating the rock into individual fibers.

Material characteristics:

Each insulation material must have specific features, and the quality of such materials is determined precisely by them.
-Thermal insulation for interior work: As insulation should, stone wool is characterized by good thermal insulation. Internal wall insulation in this way is one of the most effective ways to protect against frost in winter and heat in summer. The temperature in the room will remain stable in every season. The level of thermal insulation of stone wool depends on the specific components of the composition.
-Fire resistance:The type of thermal insulation material located inside the building does not ignite at temperatures up to 1000˚C and even higher. This makes the material much safer, because it will thus protect the entire building from fire from the outside.
-Unchangeable forms:The presence of a constant shape in wool helps it, as a material, to easily withstand any mechanical stress. That is, it can be used as floor insulation. It is important to take into account that the level of stability depends primarily on the binder in the stone wool composition.
-Soundproofing:Since the material is soundproofed, the owners of such a house will not be disturbed by sounds coming from outside, since the cotton wool suppresses them well and prevents them from spreading.
-Waterproof: This property of stone wool is very important for maintaining suitable humidity in the room. After all, no matter how humid the air inside the house is, this thermal insulation material will remain dry.
-Environmentally friendly:The environmental friendliness of the material is due to the fact that during its production and operation there is no environmental pollution.

Advantages of stone wool as insulation:

-Fire resistant;
-Wide temperature range;
-High level of thermal insulation and sound insulation;
-Quite easy to install.

Disadvantages of stone wool:

-Relatively high price. Cheap cotton wool is always a low-quality material. If you are counting on a reasonable level of thermal insulation, then turn to options with a higher price.
-Serious dust during installation. When insulating walls with stone wool, a lot of dust will always be released, so it is worth using a mask to protect yourself.

Also Read : Smart Home Appliances Market Growth, Size, Share, Price, Report, Forecast 2023-2028

The use of stone wool as insulation

Stone wool is most often used in the construction of country houses, separate bathhouses, and also when laying communications.

According to the future place of use, stone wool is divided into types of wall insulation:

-Soft (thin fabric for laying ventilated walls);
-Semi-rigid (for thermal insulation of pipes, laying walls in multi-storey buildings);
-Hard (suitable for floors or foundations).


Polyurethane foam consists of two materials – sheet and liquid. These types of thermal insulation materials for walls are used under different circumstances.

Liquid polyurethane foam is an insulation material used for walls and windows, sealing cracks. This is a foam that, when hardened, creates a thick, dense layer.

Sheet material for wall insulation is more liquid. With its help, buildings are insulated both outside and inside. Sheet insulation, used to protect walls inside a house, is more often used to insulate the foundation during the construction of a building, so that the foundation is not subject to deformation or breakage due to temperature differences.

Characteristics of polyurethane foam:

Both liquid and sheet polyurethane foam are available on the market in a wide selection for home insulation Sydney, where the varieties differ from each other in certain characteristics.

-The service life of this thermal insulation material ranges from 20 to 50 years.
-Liquid polyurethane foam has good heat resistance, which means it retains heat inside the house efficiently.
-It is very light in weight, which allows it to be used for insulating any kind of surface.
-Installation using liquid polyurethane foam is an easy task.

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