Mineral wool, foam plastic and polystyrene foam: features, what is better for external insulation of walls

What to insulate the walls with? The most popular materials are mineral wool, Styrofoam and polystyrene foam. All of them have high thermal insulation properties, however, there are some differences in properties. Let's consider how to choose the best material for insulation of walls.

Features of insulators for walls

Mineral wool not only insulates the walls. It has good insulating properties. Mineral wool is made from natural materials such as basalt or fiberglass, which makes it an environmentally friendly insulator.

It is resistant to rot, fungi and rodents. Mineral wool allows the walls to "breathe". This prevents moisture accumulation and mold formation. It is easily laid between the walls and does not require special equipment for installation.

Styrofoam has these characteristics:

• Styrofoam is a very lightweight material, but some of its types crumble.
• It is a relatively cheap material.
• Foam plastic is resistant to mechanical damage and deformation.
• This material can be treated with special additives to improve its water-repellent properties.
• Foam plastic can be used to create various shapes and sizes of wall coverings.

The disadvantage of Styrofoam is that it is produced from petroleum. Many of its types release toxic substances. It can also deteriorate under the influence of sunlight.

Features of Styrofoam:

• The material weighs little, it is easy to deliver and fix on the walls.
• Styrofoam has good strength and is resistant to mechanical effects, such as deformation and impact. It does not deteriorate from moisture.
• It is easy to cut and cut out under the shape of arches, walls.
• Some types of polystyrene foam are resistant to UV radiation. They do not need to be covered with insulation.

Styrofoam can not be called the most environmentally friendly material. It may contain additives that can be harmful to the environment. It is also important to properly treat and install polystyrene foam panels to avoid possible problems with water resistance and deformation.

Which is the best material for wall insulation

The choice between mineral wool, foam and polystyrene foam for wall insulation depends on the conditions in the room and the requirements for the material. A few factors that can help you decide which one to choose:

• Climate conditions. In a region with high humidity or extreme temperatures, mineral wool may be a better choice because of its increased resistance to moisture and UV radiation.
• Budget. Styrofoam and expanded polystyrene are more affordable than mineral wool.
• Safety. If the ecological purity of the material is important, it is worth giving preference to mineral wool, since it is made from natural materials.
• Requirements for soundproofing. If it is important to reduce noise from outside or inside the room, mineral wool usually has the best soundproofing properties.
• Ease of installation. Styrofoam and expanded polystyrene are easier and more convenient to install than mineral wool, especially when working at heights or with limited access.

The best choice of insulation for walls depends on the needs, on the place of installation of insulation: outside the building or indoors. It is recommended to consult with professionals in the field of construction or insulation. You can read reviews on the Internet.