Class A insulation materials, what are the Class A insulation materials

At present, there are mainly these kinds of thermal insulation materials in China, STP ultra-thin and high-efficiency insulation board, polyurethane (PU), vitrified microbeads, rock wool insulation, foamed cement, foamed ceramics, foamed glass. Of these materials, the lowest thermal conductivity is STP plate, the lowest is STP plate, and according to the energy saving of 65%, STP plate 1 cm thickness can meet the requirements, and the weight of the plate per square meter is only 6 kg. Among these materials, STP board is more cost-effective.

The high-tech STP ultra-thin thermal insulation board A-class fireproof and thermal insulation material has a thermal conductivity of only 2 cm, which can reach the six or five energy saving stipulated by the state.

Wall insulation material is recommended that you go into this to take a look.

The thermal conductivity of HD-STP ultra-thin insulation board is very low, and the thermal conductivity reaches w (w·k), and its thermal insulation effect can reach 6-8 times that of conventional polystyrene board, 4-5 times that of extruded plastic board, and twice that of polyurethane.

Class A fireproof. The unit area is light, and the safety factor is high after being put on the wall.

It has high bonding strength with adhesive mortar and plastering mortar, and will not have cracking, water seepage and falling off of conventional external wall external insulation system, and the service life is the same as that of the building.

The thermal stability of the material itself is good, the thermal expansion and shrinkage coefficient is small, and there is no thermal shrinkage of conventional organic insulation materials.

<> "1. What are the A-grade insulation materials?

1. Rock wool board: its main component is basalt, which not only has good thermal insulation and separator sound, but also has a relatively light weight, and its thermal conductivity is also relatively small, with a strong flame retardant effect, and is not easy to be burned.

2. Composite cement foam insulation board: its main components are fly ash, cement, hydrogen peroxide, it can not only be waterproof, but also has good thermal insulation, and its thermal conductivity is generally relatively low, at the same time it is also a non-toxic radioactive substance, which is very environmentally friendly to use.

3. Vitrified microbeads: its main component is perlite ore, which not only has stable physical properties, which can effectively reduce the aging rate, but also has strong aging resistance and weather resistance, and also has good sound absorption, fire resistance, heat insulation, and also has strong sound insulation.

4. Foamed ceramic insulation board: its main components are ceramic fragments, clay tailings, adulterated materials, etc., it not only has good fire resistance and flame retardancy, but also has strong aging resistance, and its deformation coefficient is relatively small, at the same time, its performance is relatively stable, and the service life is relatively long. Moreover, its fire rating can generally be as high as Class A, which can effectively solve the shortcomings of organic materials that are afraid of fire and easy to age.

Note: There are many kinds of A-level insulation materials, and if the types of insulation materials are different, their performance, construction methods, and scope of use will be different.

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There are many grades of insulation materials on the market today, and A1 grade is one of them. So the question is, do you know what A1 grade insulation materials are? What are the skills and points for purchasing internal insulation materials?

Let me give you a brief introduction. What are the A1 grade insulation materialsThere are many A1 grade insulation materials, such as: cement foam insulation board, vitrified microbead insulation mortar, rock wool board, glass wool board, foamed ceramics and WW inorganic active wall insulation materials.

A1 grade insulation material has the characteristics of low density, low thermal conductivity, convenient construction and economic durability. Because of its good thermal stability, it is mostly used as a fire-resistant protective coating material for steel structures. 1. Non-toxic, tasteless, non-volatile, the harm of formaldehyde has been heard of.

2. Safety, fire prevention, fire away from the family, so that people can live at ease. 4. The thermal insulation effect is excellent, if the effect is not obvious, I believe that everyone will not spend this unjust money. 5. The surface is beautiful, hard, and very wear-resistant, so it is very practical.

6. Allow the later decoration to be upgraded, it doesn't look pleasing to the eye, you only need to carry out a simple renovation. 7. The price of the product is affordable, and it is not necessarily good if it is expensive. Key points for the purchase of internal insulation materials 1, the fire rating of the material, the insulation material is divided into 4 grades, which are flammable, combustible, incombustible and non-combustible.

When choosing insulation materials, owners should focus on flame-retardant materials. In addition, when purchasing, it is also necessary to check whether there is a qualification mark on the packaging of the insulation material, fire rating and other relevant information. 2. The main function of the thermal insulation material is thermal insulation, so its thermal insulation performance is the key to product quality.

To understand the thermal insulation of insulation materials, the main thing is to look at the thermal conductivity of the material. 3. Requirements for external thermal insulation materials Because the thermal insulation materials are facing the wind and rain of nature, they have high quality requirements, such as: waterproofness, freeze-thaw resistance, weather resistance, impact resistance and wind pressure resistance.

In particular, it is necessary to pay attention to the fire performance of the material, because it is related to people's property and life safety. Total Zhaoye Jie: After reading the above introduction, I believe you have a further understanding of what A1 grade insulation materials are.

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Class A fireproof insulation material is a fireproof insulation material with a fire rating of A, and A-class insulation materials mainly include A1 grade materials and A2 grade materials. Class A fireproof and thermal insulation materials include foam glass plates, rock mineral wool boards, expanded perlite products, vitrified microbead products, etc.

Fire rating of exterior wall insulation materials.

Grade A is a non-smiling trillion-burning material, WW inorganic active wall insulation material, cement foam insulation board, rock wool board, glass wool board, foamed ceramics, etc.

B1 grade is a flame retardant material, most of which are organic materials, and a large amount of flame retardant is added, such as polystyrene board, extruded plastic board, phenolic board, polyurethane board, etc.

B2 grade is a flame retardant material, also known as a flame retardant material, which is mostly an organic thermal insulation material with an appropriate amount of flame retardant.

Types and comparisons of exterior wall insulation:

1. Insulation of the exterior wall.

Exterior wall insulation is to place the insulation material on the inside of the exterior wall, and its advantages are:

1) It does not have high requirements for technical indicators such as waterproofing and weather resistance of finishes and insulation materials. Gypsum board, gypsum plastering mortar, etc. can meet the requirements of use.

2) The internal insulation material is separated by the floor slab, and the construction is only within the range of one floor height, and scaffolding needs to be erected.

However, in years of practice, the internal insulation of external walls has also revealed some shortcomings. Many kinds of internal insulation practices, due to materials, structure, construction and other reasons, the finishing layer cracks, which is not convenient for users to decorate and hang ornaments; occupy indoor use space; Due to the thermal bridges caused by ring beams, floor slabs, structural columns, etc., the heat loss is large; When energy-saving renovation of existing buildings is carried out, it will interfere greatly with the daily life of residents.

2. Exterior wall sandwich insulation.

Exterior wall sandwich insulation is to place the insulation material between the inner and outer wall pieces of the same external wall, and the inner and outer wall pieces can use traditional clay bricks, concrete hollow blocks, etc. The advantages of this form of insulation are: the waterproof, weather-resistant and other properties of these traditional materials are good, and the inner wall pieces and thermal insulation materials form effective protection, and the material selection requirements for thermal insulation materials are not high, and various materials such as polystyrene, glass wool, and rock wool can be used; The requirements for the construction season and construction conditions are not very high, and do not affect the winter construction.

However, because in non-severe cold areas, this kind of wall is thicker than the traditional wall, and there need to be connected by connectors between the inner and outer wall pieces, the structure is more complex than the traditional wall, and there is still a thermal bridge in the setting of the ring beam and the structural column in the building in the ** area. The efficiency of insulation materials is still not fully utilized.

3. External insulation of external walls.

With the deepening of China's energy-saving work, the improvement of energy-saving standards, the continuous improvement of materials and technologies for external wall thermal insulation, external thermal insulation has attracted more and more attention due to its superiority, and its advantages are:

1) The scope of application is large. External thermal insulation is not only suitable for heating buildings in the north, but also for air-conditioned buildings in the south; It is suitable for low-rise buildings, and it is also suitable for high-rise buildings; It can be used for new buildings, as well as for buildings that need to be renovated for energy efficiency.

2) Reduce the occurrence of thermal bridging problems. Due to the insulation on the outside of the exterior wall, this greatly reduces the occurrence of thermal bridge problems. Thermal bridges are a serious problem for interior insulation, especially in the cold winters in the north, where they cause additional heat loss and can cause condensation on the inner surfaces of exterior walls.

For external insulation, it can not only reduce the heat loss caused by the thermal bridge problem, but also effectively prevent condensation at the thermal bridge area. Therefore, the external insulation not only saves heating costs, but also does not make the outer cherry tree wall damp due to the thermal bridge problem.

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