Has anyone heard that extruded plastic board exterior wall insulation should be banned?

I haven't heard of the prohibition of extruded plastic boards, but now the exterior wall must be made of fire isolation belt, the document has come down, and the extruded plastic board can be used, but it is only necessary to make fire isolation belts, which increases the cost. There is no such fire problem with inorganic insulation materials, and now inorganic insulation materials are lower than other materials, which has advantages and is much easier to construct. You can search for "inorganic insulation materials" one by one, and learn more about it It is said that Nanyang Yintong's YT inorganic insulation is good, and you can learn about it.

The main cause of the fire on CCTV TV was indeed the problem of the insulation board, which was too poor in fire resistance, which played a role in promoting the fire.

As for whether there is a ban, I don't know very well, the future trend is definitely polyurethane, phenolic resin to replace extruded board.

You seem to be behind in the news.

This message was banned in September.

The large curtain wall company has been notified.

However, due to the simple construction and low cost of extruded plastic panels, it is unlikely that the state will ban them all at once.

Just like Shanghai, ** still implements extruded plastic boards.

The class enemy is still there, and the heart is not dead.

The thickness of the building exterior wall insulation board should be determined according to the local climate, and the thickness of the exterior wall insulation board is also different in different regions. Common exterior wall insulation boards are divided into XPS extruded board and rock wool board. If the altitude is higher and the temperature is lower, the thickness of XPS extruded plastic insulation board is about 80 mm, and the thickness in the southern region is about 30-40 mm.

The thickness of rock wool insulation board is about 30 mm and 50 mm in the southern region, and the material thickness is about 50 mm and 70 mm in the northern region.

In short, the thickness of the insulation board should be increased in areas with low temperature, so as to save resources and costs, and ensure the safety and service life of the building.

Advantages of exterior wall insulation board.

1. Thermal insulation, consumption reduction and energy saving.

The exterior wall insulation board has a good thermal insulation effect, which greatly reduces the energy consumption of heating and cooling, and greatly saves energy expenditure. And the product is cost-effective, and has a better thermal insulation effect than the traditional paint thin plaster.

2. Convenient installation and cost saving.

The installation of the insulation board is very quick and easy, so you don't have to worry about climate restrictions, and it is suitable for all seasons. It not only speeds up the progress of the project, but also saves the comprehensive cost.

3. Lightweight, shock-resistant and crack-proof.

The material of the exterior wall insulation board is lighter, so you don't have to worry about increasing the burden on the building itself, and it can reduce the impact on the building. Make the house more integral, stronger and safer.

The common density and use of extruded plastic board for exterior wall insulation board are different, and the density requirements are also different, so the density requirements are different according to the use scenarios of floor heating. The density of extruded plastic board for floor heating is generally about 35kg m, the density of extruded plastic board for wall insulation is about 25kg m, and the density of extruded plastic board for filling is about 45kg m.

Specifications for floor heating: 1670*600*20mm, 1670*600*30mm and other specifications for building insulation: 2000*600*200mm, 2000*600*30mm, etc.

Combustion performance of extruded plastic board:

Different standards have different grading methods, and the common combustion performance of extruded plastic board is divided into B1, B2 and B3, B1 is flammable (oxygen index greater than 30%), B2 is flammable (oxygen index greater than 26%), and B3 is flammable.

The thickness of exterior wall insulation extruded board is commonly divided into 10mm, 20mm, 25mcm, 30mm thick, and 9-10m long.

The common diameter of pipes is from 6-108mm, and the thickness is 9, 15, 20, 25, 30mm

1. If the insulation board is an extruded plastic board, a special interface agent should be applied on the side of the adhesive paste, and it should be left to dry for 20 minutes before use.

2. The extruded plastic board should generally be laid horizontally, from the bottom to the top, and the width of the staggered seam is 1 2 board length, and appropriate cutting should be carried out if necessary.

3. Evenly coat a layer of adhesive polymer paste around the extruded plastic board, the width of the coating is 50mm, the thickness is 10mm, and leave a 50mm wide exhaust hole on one side of the board, the middle part is dotted with a diameter of 100mm, a thickness of 10mm, and a center distance of 200mm, for a standard plate of 1200mm and 600mm, 8 points are coated in the middle, and for non-standard boards, the area of the glue should be not less than 30% of the total area of the board after the extruded board is pasted. The sides of the board must not be glued.

Summary. Pro-extruded plastic board (** material) is generally difficult to withstand high temperatures, and it is easy to deform when the temperature reaches 60-70 degrees.

Pro-extruded plastic board (** material) is generally difficult to withstand high temperatures, and it is easy to deform when the temperature reaches 60-70 degrees.

The extruded board is made of poly virtual styrene resin as the main raw material, and the rigid board is continuously extruded by high-mix extrusion molding and special process. The product has a unique and perfect closed-cell honeycomb structure, high pressure resistance, moisture-proof, non-breathable, non-absorbent, corrosion-resistant, low thermal conductivity, light weight, long service life, extruded plastic board than high difference and other high-quality performance of environmentally friendly insulation materials, which are widely used in the construction industry and are currently recognized as extremely ideal insulation materials.

Disadvantages: The strength of the extruded board itself is high, which causes the plate to be brittle and not easy to bend, and the stress on the board is concentrated, which is easy to damage and crack the plate. The adhesive absorption is poor, and the damage surface after bonding is the surface of the XPS board, and the bonding strength is not enough; Relatively high.

The elasticity of the letter structure is poor, and the insulation layer falls off due to deformation and bulging due to changes in temperature and humidity. Moreover, it has only been used for 3 or 4 years, and there is no national standard in China. Europe, America, South Korea and other countries with advanced insulation technology have not yet been widely used.

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Summary. Hello, extruded plastic board is used in indoor wall insulation effect, the advantages of extruded plastic board insulation. 1.

High thermal resistance, low linearity, and low expansion. The closed cell rate of the extruded board itself can reach more than 98%, forming a vacuum layer, which effectively avoids air flow and heat dissipation, and makes the insulation performance more durable.

2.Extruded plastic panels themselves have extremely high compressive strength and can withstand different kinds of loads, making them ideal for flooring and roofing treatment.

Is it good to use extruded plastic board for indoor wall insulation?

Hello, extruded plastic board is used in indoor wall insulation effect, the advantages of extruded plastic board insulation. 1.High thermal resistance, low linearity and low expansion.

The closed cell rate of the extruded plastic board itself can reach more than 98%, forming a vacuum layer, effectively avoiding air flow and heat dissipation, and making the thermal insulation performance of roller skating more durable. 2.Extruded plastic panels themselves have extremely high compressive strength and can withstand different kinds of loads, making them ideal for flooring and roofing treatment.

3.Moisture resistance. Due to the closed cell rate of the extruded plastic board, its waterproof and dry performance is improved, the internal water absorption is not absorbed, and the molecular structure of the poor is more stable. When used as an exterior wall, it can not only block rain but also dew, and ensure good thermal insulation performance.

4.Excellent heat retention effect. The surface of the extruded plastic board is dense, the thermal conductivity and thickness are low, and the thermal insulation ability is more excellent.

And it has a strong moisture resistance. Especially when the environment is humid, such as cold storage and other buildings with special requirements for thermal insulation, of course, the exterior wall extruded plastic board can also be used as a brick or stone building.

The main substrate of extruded board is polystyrene resin, which is made by adding polymer and mixing evenly and adding catalyst. It has the advantages of compression-resistant, moisture-proof, non-breathable, anti-aging, and environmental protection. It is mainly suitable for wall insulation, flat concrete roof, highway and so on.

So is it easy to use exterior wall extruded plastic board insulation? Let me analyze the advantages and disadvantages for you.

Exterior wall extruded plastic board insulation advantages.

1. It has high thermal resistance, low linearity and low expansion.

The closed cell rate of the extruded board itself can reach more than 99%, forming a vacuum layer, which effectively avoids air flow and heat dissipation, and makes the insulation performance more durable.

2. It has excellent high strength and compression resistance.

Extruded plastic panels have extremely high compressive strength and can withstand different types of loads, making them ideal for flooring and roofing treatment.

3. It has high-quality moisture-proofness.

Due to the closed cell rate of the extruded plastic board, its waterproofness has been well improved, its internal water absorption, molecular structure is more stable, used as an exterior wall, whether it is rain or dew, can be blocked out, to ensure good thermal insulation performance.

4. Excellent thermal insulation effect.

The extruded board has a compact surface and lower thermal conductivity and thickness, resulting in better thermal insulation. And it has a strong ability to prevent moisture. Especially when the environment is relatively humid, such as cold storage and other buildings with special requirements for thermal insulation, of course, you can also use external wall extruded plastic board insulation as a brick or stone building.

Disadvantages of exterior wall extruded plastic board insulation.

1. Because the extruded plastic board material itself has high strength, its material is relatively brittle, and it is prone to bending and cracking.

2. The adhesive absorption is weak, the strength is relatively poor, and after bonding, it is easy to destroy the surface of the extruded plastic board.

4. The expansion and contraction performance of the extruded plastic board of the exterior wall is not very good, and the changes in cold, heat, temperature, and humidity are easy to deform and bulge, and even cause the insulation layer to fall off. 5. In fact, extruded plastic board is a new type of material, and extruded plastic board has only been used in recent years, and there is no relevant national standard so far, for example, the insulation technology is relatively poor.

6. The air permeability of the extruded plastic board is relatively impermeable, especially if the temperature difference between the two sides of the extruded plastic board is relatively far, so condensation may occur.

1. The verticality and flatness of the exterior wall (which can be carried out in sections) jointly accepted by the owner, the supervisor and the external protection construction unit meet the requirements of the specification, and the dimensions of the protruding wall parts such as bay windows, balcony railings, and overhangs are qualified, and the construction can be carried out after the handover order.

2. During construction in rainy days, effective rainproof measures must be taken to prevent rainwater from washing the wall surface that has just completed construction but the adhesive mortar or surface polymer mortar has not yet set.

3. The ambient temperature of the construction site and the surface temperature of the screed layer shall not be lower than 5 during construction and within 24 hours after construction, and the wind force shall not be greater than level 5.

4. A 300mm wide horizontal lattice joint is set up along every 3 floors along the height of the building, and there is no bay window and balcony.

5. Construction site: the extruded plastic board of the exterior wall façade is 30 thick, and the extruded plastic board of the balcony ceiling is 20 thick (the independent wall column outside the open balcony does not need to be insulated, and the rest of the cold bridge is made of 20mm thick insulation board), and the construction site is subject to the notice of the foreman and the quality inspector on site.

1. The slats of the extruded board must be packed in a bag with a hand, and it is forbidden to throw them everywhere and sell them everywhere.

2. When applying the adhesive mortar of the extruded plastic board, be careful not to pollute.

3. Attention must be paid to the pollution of the floor when mixing and using mortar, and the finished product must be protected for the floors where other types of work have been completed. When pasting the upper extruded plastic board, the falling adhesive mortar may contaminate the lower extruded plastic board and mesh cloth, and must be cleaned in time.

4. When using the hanging basket, the finished wall should be protected, and heavy objects should be prohibited from hitting and scraping the wall of the extruded plastic board.

5. The mortar used in construction must be mixed in small barrels, and it is strictly forbidden to pour the mortar that has not been used up everywhere. Save water: Close the water pipe valve in time after using up the water, so as not to cause waste of water sources and construction materials (hardening after soaking) or affect the construction of other teams.

6. The extrusion must be piled up into a square to protect against fire and rain.