In the north, thermal insulation materials will be used. What are the external wall insulation materials? Now let’s check the types of external wall insulation materials:
1： Benzene board is widely used now, but its thermal insulation effect is not ideal, and it will absorb water, so some waterproof measures will be taken when using benzene board.
2： Extruded board is much better than benzene board, its thermal conductivity is lower than benzene board, and its price is slightly higher.
3： Polyurethane is a relatively good kind of thermal insulation materials, and also a kind of good performance. Generally speaking, it is used in some places that have strict requirements in this regard, and because of its high price, there are few residential buildings.
4： Glass wool and rock wool have many similarities in performance, which is easy to be confused by many people. However, because glass wool feels better than rock wool, its price is generally higher than rock wool.
New exterior wall insulation materials:
1： XPS extruded polystyrene foam sheet. Also known as polystyrene extruded board (XPS for short); With a closed cell honeycomb structure, its density, water absorption, thermal conductivity and steam permeability are lower than other types of plate thermal insulation materials, so it has the characteristics of good strength, light weight, impermeable, corrosion resistant, low price, and is widely used in the thermal insulation of the construction industry, antifreeze insulation of roads, railways, airports, squares, home decoration and other fields.
2： Thermal insulation mortar. Thermal insulation mortar is a kind of premixed dry powder mortar, which is made of various lightweight materials as aggregates, cement as cementitious material, and some modified additives, and is mixed by the production enterprise. It is mainly used for building external wall insulation, with the advantages of convenient construction, good durability, etc.
3： Phenolic foam. Phenolic foam is a new type of thermal insulation material recognized internationally as a promising building material. Because this new material is essentially different from the material obtained by adding flame retardant to common polymer resin. It does not burn, melt or emit toxic smoke in fire, and has the advantages of light weight, non corrosion, heat preservation, energy conservation, sound insulation, low price, etc
4： EPS board. EPS board, also known as benzene board and foam board, is the abbreviation of expandable polystyrene board. It is made of expandable polystyrene raw material through pre development, aging, molding, drying, cutting and other processes. It can not only be made into foam plastic products with different densities and shapes, but also produce foam plates with different thicknesses.
Pipe insulation materials:
1、 Mineral wool, including rock and slag, can be used for insulation of all pipelines, especially industrial pipelines with high temperature, which are also widely used.
3、 Elastic foam and rubber foam are widely used in the insulation of refrigeration and air conditioning pipelines, and are often used in the pipeline insulation of heating systems due to their characteristics.
5、 Polyethylene is a widely used material to prevent domestic water supply pipes from freezing.
The selection of thermal insulation materials must be careful. Once the application is improper, problems are likely to occur. Moreover, it is difficult to repair because it is a concealed project.
Post time: Nov-09-2022