The exterior wall of the hotel should be insulated. A friend said he wanted to buy Kunnai materials. I don't know whether to use rock wool board or glass wool board.

The thermal insulation effect of rock wool and glass wool is not ideal. XPS board or EPS board is recommended.

Press out film

Full name of extruded polystyrene foam board, short for extruded board, also known as XPS board. Polystyrene foam can be divided into expandable EPS and continuous extrusion XPS. Compared with EPS board, XPS board is the third generation rigid foam thermal insulation material. Technically, it overcomes the complicated production process of EPS board and has superior performance that EPS board can't replace. It is made of polystyrene resin and other additives through extrusion process, and has a continuous and uniform surface layer and a closed-cell honeycomb structure. These thick plates of honeycomb structure will not have any gaps at all. Thermal insulation materials with closed-cell structure can have different pressures (150-500Kpa) and the same low-value thermal conductivity (only 0.028W/M.K), as well as lasting excellent thermal insulation and compressive properties, and the compressive strength can reach 200.

Scope of application: building external wall insulation

Fire rating: b 1/ flame retardant.

Thermal conductivity: 0.032W/(m﹒k)

Working temperature: self-extinguishing in case of fire (℃)

Density: 35 kg/m? )

Remarks: self-extinguishing, oxygen index 26.

How to choose qualified floor heating extruded board;

1, thick plate with hardness

Extruded board has a very special structure, the closed cell is light due to complete closed cell foaming, and the uniform honeycomb structure makes it have high strength. Therefore, the plate is very convenient to carry, easy to cut and simple to fix.

2. Thermal insulation

Extruded board has the characteristics of high thermal resistance and low linear expansion rate, and is a good thermal insulation material. Its thermal conductivity is artificially 0.030W/mk, which can keep extremely low thermal conductivity for several years at a relative temperature of 70%. Therefore, it is generally suitable for thermal insulation of apartments, buildings, factories and other buildings, which can reduce the consumption of natural resources and increase the comfort of living.

3, extremely high compressive strength

The structure of extruded board forms a honeycomb wall with uniform thickness, which is closely connected with each other, and there is no gap between walls, so its compressive strength is extremely high, which can reach more than 336Kpa, and it can remain unchanged after soaking for 24 hours, which is incomparable to other materials including EPS expanded polystyrene. Even if it is used as a manned or parking platform, it can meet the requirements.

4. Very low water absorption

The extruded board has a completely closed-cell structure, and there is no gap on the front and back sides, so that the water generated by water leakage, condensation and ice/melt cycle cannot penetrate, and the water absorption rate is extremely low, so that the performance of the board can be continuously and stably exerted.

5, excellent moisture resistance and moisture-proof effect

Extruded board can effectively block the infiltration of ground gas and effectively produce moisture-proof effect at high temperature. In addition, the internal barrier for moisture-proof floors protects buildings from moisture damage.

cystosepiment

Polystyrene foam board-also known as foam board and EPS board-is a white object formed by heating expandable polystyrene beads containing volatile liquid foaming agent in a mold. With the structural characteristics of fine closed holes, it is mainly used for building wall, roof insulation, composite board insulation, cold storage, air conditioning, vehicle and boat insulation, floor heating, decoration and carving, etc.

Scope of application: building external wall insulation

Fire rating: b 1/ flame retardant.

Thermal conductivity: 0.032W/(m﹒k)

Working temperature: self-extinguishing in case of fire (℃)

Density: 35 kg/m? )

Remarks: self-extinguishing, oxygen index 26.

rock wool

Also known as rock wool, it is a kind of mineral wool. A fluffy short fiber made of natural rocks and minerals.

Scope of application: industrial boilers, equipment pipelines, internal insulation of buildings, etc.

Fire resistance rating: A/ nonflammable

Thermal conductivity: 0.026 ~ 0.035 w/(m ~ k)

Working temperature: -260 ~ 700 (℃)

Density: ≤ 150(kg/m? )

Remarks: It will fail in case of water, and it is not suitable for external thermal insulation of buildings.

Construction instructions:

1. Facilities and pipelines that need thermal insulation shall be free from leakage, dry surface, grease and rust. In some cases, oranges and oranges can be preserved by proper coating.

2. In order to achieve the minimum heat loss, all joints of the board and felt must be closely butted, and the cross joints should be staggered when multi-layer heat preservation is carried out to avoid forming hot bridges, and cold bridges must be eliminated when cold preservation is carried out.

3. Rock wool products are used for outdoor thermal insulation, or are wrapped in metal or plastic where they are easily worn by machinery. Pay attention to the joint and joint sealing, and glue it if necessary. The overlapping part of the cladding shall not be less than100 mm.

4. For cold preservation, a moisture-proof layer must be added to the cold preservation surface. When the temperature is extremely low, rock wool without resin should be used for thermal insulation, and the moisture-proof layer must also be fireproof.

5. When the temperature exceeds 200℃, the insulation layer must be properly protected so that the possible expansion will not change the thickness and bulk density.

6. When rock wool products are used for thermal insulation of large-diameter or flat-wall equipment, when the temperature exceeds 200℃, thermal insulation nails should be added, and the external protection (spacing of 400mm) should be firmly bonded.

7. When the insulation object is placed vertically and has a considerable height, the insulation layer must be provided with locating pins or rings, and the spacing should not be greater than 3m, so as to prevent the insulation material from slipping when there is vibration.

8. It is not suitable for outdoor heat preservation and cold preservation construction in rainy days, otherwise rainproof measures should be taken.

Rock wool for external wall

The key points of rock wool for exterior wall are required strength and certain tensile strength.

Usually people meet the strength requirements by increasing the density of rock wool, and in addition, the amount of glue is appropriately increased in production.

Basalt rock wool is the best in terms of raw materials, and the rock wool produced by it not only has fine fibers, but also has thermal conductivity and tensile strength that can meet the design requirements of domestic general projects.

Glass wool board

Glass wool belongs to a category of glass fiber and is an artificial inorganic fiber. Glass wool is a kind of material similar to cotton, which is made of molten glass fiber. Its chemical composition belongs to glass and it is an inorganic fiber. It has the advantages of good formability, low bulk density, satisfactory thermal conductivity, good thermal insulation, sound absorption, corrosion resistance and stable chemical properties. Centrifugal glass wool is a typical porous sound-absorbing material with fluffy interlaced fibers and a large number of micropores, which has good sound-absorbing characteristics. Glass wool is resistant to high temperature of 450 degrees. Materials with certain elasticity can be used as vibration isolators between equipment and infrastructure in industrial workshops to reduce the vibration and solid sound transmitted by building structures.

Scope of application: indoor thermal insulation materials, etc.

Fire resistance rating: A/ nonflammable

Thermal conductivity: 0.03 ~ 0.04 W/(m k)

Working temperature:-120 ~ 400 (℃)

Density: 24 ~ 96 (kg/m? )

Remarks: It will fail in case of water, and it is not suitable for external thermal insulation of buildings.

Advantages of glass wool board:

1. Attract noise reduction, which can effectively prevent sound transmission. Glass wool has a simple structure and can be cut at will.

2. Antibacterial, mildew-proof, anti-aging and corrosion-resistant to ensure a healthy environment.

3.A 1 Fireproof, permanently nonflammable. Low humidity and high durability.

Inorganic wall thermal insulation mortar

Inorganic thermal insulation mortar is a new type of thermal insulation and energy-saving mortar material, which is used to paint the internal and external walls of buildings. Inorganic lightweight thermal insulation particles are used as lightweight aggregate, and dry mortar composed of cementing materials, anti-crack additives and other fillers is added. It has the characteristics of energy saving, waste utilization, heat preservation, fire prevention, frost resistance, aging resistance and low price, and has a broad market demand.

Scope of application: external wall plastering, replacing mortar and thermal insulation materials.

Fire resistance rating: A/ nonflammable

Thermal conductivity: ≥0.04W/(m﹒k)

Working temperature: ≤600(℃)

Density: 280(kg/m? )

Remarks: The thermal insulation effect is close to that of extruded board.

Technical features:

1, inorganic thermal insulation mortar has excellent temperature stability and chemical stability: the thermal insulation system of inorganic thermal insulation mortar material is made of pure inorganic materials. Acid and alkali resistance, corrosion resistance, no cracking, no shedding, high stability, no aging problem, and the same life as the building wall.

2. Simple construction and low comprehensive cost: the thermal insulation system made of inorganic thermal insulation mortar material can be directly plastered on the blank wall, and its construction method is the same as that of cement mortar leveling layer. The machines and tools used in this product are very simple. The construction is convenient, and compared with other thermal insulation systems, it has obvious advantages of short construction period and easy quality control.

3. Wide scope of application to prevent cold and hot bridges: the inorganic thermal insulation mortar material thermal insulation system is suitable for various wall substrates and walls with complex shapes. Totally enclosed, no seams, no cavities, no cold and hot bridges. In addition, it can be used not only for external insulation, but also for internal insulation, or internal and external insulation, as well as roof insulation and geothermal insulation, which provides some flexibility for the design of energy-saving systems.

4. Environmental protection and pollution-free: the inorganic thermal insulation mortar material thermal insulation system is nontoxic and tasteless, free from radioactive pollution, and harmless to the environment and human body. At the same time, its widespread use can make use of some industrial waste residue and low-grade building materials, which has good comprehensive utilization and environmental protection benefits.

5. High strength: the thermal insulation system made of inorganic thermal insulation mortar has high bonding strength with the base, and there will be no cracks and hollowing. This point has certain technical advantages compared with all domestic thermal insulation materials.

6. Good fire and flame retardant safety, users can rest assured that the inorganic thermal insulation mortar material thermal insulation system will not burn in case of fire. It can be widely used in crowded houses, public buildings, large public places, inflammable and explosive places and places with strict fire prevention requirements. It can also be used as a fire barrier to improve the fire protection standard of buildings.

7. Good thermal performance: The thermal storage performance of inorganic thermal insulation mortar material thermal insulation system is much higher than that of organic thermal insulation material, which can be used for thermal insulation in southern summer. At the same time, its thermal conductivity can reach below 0.07 W/m.K, which can be easily adjusted to meet the needs of mechanical strength and practical use function, and can be used in different occasions such as ground and smallpox.

8. Good anti-mildew effect: it can prevent cold and hot bridge conduction and prevent mildew spots after indoor condensation.

9. Good economy: If the thermal insulation system of inorganic thermal insulation mortar material with appropriate formula is used to replace the traditional indoor and outdoor double-sided construction, the optimal scheme of technical performance and economic performance can be achieved.

Polyurethane foam board

One of the main raw materials of polyurethane foam is polyurethane rigid foam combined polyether. Polyurethane rigid foam combined polyether is also called white material, and it is called black and white material together with polymeric MDI. Suitable for building insulation, cold preservation, solar energy, water heaters, cold storage, constant temperature storage, beer cans, cold storage and other occasions that need heat preservation and cold preservation.

Scope of application: building external wall insulation

Fire resistance grade: b 1/ flame retardant.

Thermal conductivity: ≤0.025W/(m﹒k)

Working temperature: ≤ 120(℃)

Density: ≥30(kg/m? )

Remarks: self-extinguishing, oxygen index 28.

Features:

Unique heat insulation performance, high efficiency, energy saving and environmental protection.

2, light weight and reduced load; Excellent waterproof performance, heat preservation and waterproof.

3. Simple design, high efficiency, fast progress, good quality and long service life.

4, fluorine-free foaming, wide environmental adaptability; It can be used for thermal insulation and cold preservation of refrigerated trucks, storage tanks, pipelines, cold storage, beer fermentation tanks and fresh-keeping barrels, and for thermal insulation and waterproofing of buildings. It is also suitable for prefabricating polyurethane board, pipe shells and arc plates.