Building thermal insulation materials are used to reduce the indoor heat emission of buildings to the outside by taking measures on the external envelope of buildings, so as to maintain the indoor temperature of buildings.Building thermal insulation materials play an important role in creating suitable indoor thermal environment and saving energy in building thermal insulation.
External wall insulation materialFire rating of external wall insulation materials Fire rating of external wall insulation materials Fire rating of external wall insulation materials Fire rating of external wall insulation materials
1. China's national standard GB8624-97 willCombustion performance of building materialsIt is divided into the following grades
Class A: Non combustible building materials: inorganic materials that hardly burn.
Class B1: fire-resistant building materials: fire-resistant materials have good flame retardancy.It is difficult to catch fire when encountering open fire in the air or under the action of high temperature, and it is not easy to spread quickly.
Class B2: combustible building materials: combustible materials have certain flame retardancy.In case of open fire in the air or under the action of high temperature, it will ignite immediately, which is easy to cause the spread of fire, such as wood columns, wood frames, wood beams, wood stairs, etc.
Grade B3: flammable building materials: without any flame retardant effect, easy to burn, and with great fire risk.
2. External wall insulation materials can be classified according to fire rating
1. Thermal insulation materials with combustion performance of Class A:
Safe, fireproof and long service life, Class A non combustible green energy-saving products belong toClass A incombustible thermal insulation materialThe security performance is very high.Fully meet the requirements of the Ministry of Public Security andMinistry of Housing and Urban Rural DevelopmentClass A fire protection standard for thermal insulation materials as specified in the document GTZ [2009] No. 46 jointly issued.The thermal insulation layer is firmly bonded to the base wall, with good resistance to cracking, hollowing, falling off, wind pressure, impact and weather.The wall will not be cracked or hollowed due to high temperature expansion in summer;It will not crack or fall off due to the cold contraction in winter.
Heat insulation and energy saving
Let the house warm in winter and cool in summer Class A nonflammable green energy-saving product, with small thermal conductivity, large heat storage coefficient and high bonding strength, is used for building thermal insulation and heat preservation, which is energy-saving, environmentally friendly, safe and applicable.
Short construction period
Class A incombustible green energy-saving products are factory produced single component products.Bagged and transported to the construction site, it is not necessary to add anything, just add water and mix for 3-5 minutes, and then it can be directly used for various walls, without adding mesh cloth or wire mesh, let aloneAnti crack mortarorPlastering mortarIt can achieve the effect of troweling, whitening, heat preservation and heat insulation at one time, and can also replace the common trowelingcement mortar。The construction is fast, the labor cost is low, the construction period is more than half or even two-thirds shorter than any other insulation system, the cost is reduced, the comprehensive income is increased, the product construction is simple, and it is very popular.
Water resistance and crack resistance
Class A incombustible green energy-saving wall insulation technology system, after years of research and development, has broken through the technical problems of wall insulation materials that are prone to water seepage and cracking.Not only has it been solvedWall insulation materialIt has completely solved the common cracking problem of traditional wall materials, and its service life is the same as that of the wall: after 80 times of high temperature spraying cycle and 30 times of heating freezing cycle, there is no blistering, hollowing and falling off of the facing layer, no water seepage cracks, the impact resistance reaches 3J, and the bonding strength of the facing brick is 0.5Mpa,The product performance is superior to the national standard.
Environmentally friendly and comfortable
Class A incombustible green energy-saving products are selected, tasteless, pollution-free, natural, green, and high-qualityInorganic materials。The thermal insulation layer has certain air permeability, phase change and heat storage. Living in it, there will be no stuffy feeling in winter and no baking feeling in summer. The house will be "warm in winter and cool in summer, green, healthy, comfortable and pleasant" through thermal insulation
Comprehensive quality
Class A incombustible green energy-saving system is a building energy-saving technology system with "high comfort, low energy consumption, low cost and applicable technology" as the core, which reflects the international advanced scientific and technological development concept.Compared with traditional organic thermal insulation system andInorganic thermal insulation mortarIn contrast, it has innovated and developed the substitutability of wall insulation materials. At the same time, the comprehensive cost can be saved by 10-30%, reflecting superior cost performance.
construction technique
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Construction preparation
The base course wall meets the quality standard after project acceptance. Before construction, the dust, dirt, oil stains, etc. on the base course wall shall be cleaned and the surface shall be flat.
Key points of construction
A: The configuration of Class A non combustible green energy-saving products is based on the ratio of 1.5:1 by weight of the product to water. The mixer can be put for 3-5 minutes after mixing to achieve proper operation.
B: Grade A incombustible green energy-saving products shall be used to clean the dust and oil stain on the base surface wall with clean water, and then the mixed products shall be directly applied to the base wall or the constructedcement mortarOn the surface.The wall shall be covered evenly and compactly in the first layer with a thickness of about 10mm. When the moisture content of the first layer of material is about 50%, the second layer of batch plastering can be carried out with a thickness of 10-20mm.To achieve firm bonding, no hollowing, no cracking.Generally, the construction thickness of the product can be completed by one-time batch plastering within 20mm, the product thickness can be completed by twice batch plastering within 30mm, and the internal and external composite construction can also be done, which can not only save the material cost and labor cost of internal and external plastering of cement mortar, but also save the construction period, so as to achieve more at one stroke.The initial setting time is about 2 hours, and all processes are completed on the same day. The face brick can be pasted in seven days, and it can be done in ten daysspray painting and coating。If the base wall isConcrete shear wallWhen using the product, it is necessary to do the conventional interface mortar slushing treatment one day in advance. It is recommended to hang the mesh (glass fiber mesh or galvanized steel wire mesh) at the shear plane joint to alleviate the problems caused by different expansion and contraction coefficients of the base course wall materials.
C: The quality inspection shows that the construction of base wall and insulation layer meets the requirements of relevant standards, and the structural layers must be firmly bonded without delamination, hollowing, cracks, etc.
Construction process
The process flow of exterior wall external insulation or exterior wall internal insulation coating finish and facing brick finish: base course treatment (concrete and other smooth walls need to use conventional interface mortar) → square fitting, hanging vertical, snapping control line, screeding, mouth making, reinspection → batch plastering products → snapping dividing line, opening dividing groove, embedding drip tank → coating (facing brick) finish.
System structure
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Product structure
Inorganic active wall thermal insulation material is made of natural high-quality high temperature resistant lightweight material as aggregateVegetable proteinFiber, optimize and combine a variety of inorganic modified materials and curing materials, according to the principle of flexible gradual change and material compatibility of thermal insulation materials, and at the same time, adopt the internationally leading inorganic bonding and crack resistance technology, all of which have been factory produced and prepared, truly providing customers with a single component, complete product with thermal insulation, heat insulation, fire prevention, water resistance, light weight, sound insulation, crack resistanceClass A incombustible green environmental protection wall insulation phase-change energy-saving material with anti hollowing, anti falling and service life integrated with wall and other properties can increase indoor temperature by 6-10 ℃ in winter and reduce indoor temperature by 6-8 ℃ in summer.Meet the national energy saving requirements of 50% - 65%.
YT structure
Class A incombustible inorganic active wall thermal insulation materials are directly used for all kinds of base walls to achieve firm bonding, no cracking, no water seepage, and the same service life as the wall. It is a structural system composed of interface layer thermal insulation material layer and finishing layer, which plays the role of thermal insulation, energy saving and decoration.
