How to insulate the exterior wall of a building? There are those methods of insulation of the exteri

1. It is difficult to keep warm, and it is even more difficult to do it on the inside, so you still need to find a professional person to do it. Also, it can't save you money on heating and air conditioning. Even, the money you use for insulation is enough for your 10 years of heating or air conditioning electricity bills.

2. Insulation, the key is that the wall thickness is enough, you use lightweight insulation profiles to do in the house, which will inevitably lead to a reduction in the usable area. 3. Large windows are the biggest challenge to thermal insulation. If you really want to keep warm, first make the window smaller, and then use hollow low-e glass, which can reduce temperature transfer.

4. There is no need to do insulation between neighbors, and the insulation is for the exterior wall. 5. The thermal insulation layer should be the construction stage, and the construction is on the exterior wall, which is not very significant now. In particular, there is a little bit of thermal insulation material that is not environmentally friendly, and it will be less harmful to the human body if it is done indoors.

Therefore, indoor insulation is not recommended. At most, you can put the exterior wall on the inside and put a brick on it, but then the space is too small.

In the maintenance structure of the external wall of the building, the wall accounts for a large proportion. The heat lost by the wall is about 20% of the total heat dissipation of the building, and the heat absorbed through the external wall in summer is about 30% of the total heat absorption of the building. Therefore, the thermal insulation design of the exterior wall is very important, and it has received more and more attention and is widely used.

At present, the external wall insulation system is widely used in building energy conservation in hot summer and cold winter areas in China. Compared with the internal insulation of external walls, it has more outstanding system advantages. Therefore, the three exterior wall insulation methods mentioned in this article are all external wall insulation methods with different processes.

The thermal insulation core material of the exterior wall rock wool insulation decorative integrated board is made of vertical filament rock wool board, which is specially designed for the external wall insulation and fire protection system of public buildings, and is suitable for the external wall insulation or energy-saving renovation of new or existing buildings with dense structures such as concrete or brick concrete, and the finished board system provides safe, stable and efficient fire insulation functions.

The YAPU rigid foam polyurethane ceramic integrated board is made of ceramic sheet pressed at a high temperature of more than 1200 degrees as the finishing layer, which has better oxidation compared with the traditional calcium silicate board and real stone paint. It ensures the excellent decorative effect, flatness, high weather resistance and self-cleaning of the decorative surface. Moreover, the prefabricated production of the factory + the on-site standardized construction process can realize the dual functions of decoration and thermal insulation at one time, making the construction more convenient and the cycle shorter, and effectively saving the construction period and cost.

Special parts such as corners, window frames and arcs are all prefabricated in the factory in advance according to the actual size of the site, with more accurate dimensions and smoother shapes, eliminating the hidden dangers of cracks and water leakage caused by the corner matching of the traditional building exterior wall decoration system. YAPU rigid foam polyurethane ceramic integrated board, a chemical synthesis finishing layer, not adhesive.

The integration of structural exterior wall insulation is mainly to insulate the exterior wall and wear clothes, which has become a set of clothes for the building. With the completion of the building, the insulation was also completed. Structural insulation integration technology will not fall off during the life of the building, the technology implants the insulation material into the wall to form a new composite reinforced concrete shear wall structural system, the insulation layer and the structural layer are poured at the same time, a total of the whole, the insulation and the structure have the same life, the quality of the exterior decoration is stable, and the engineering quality hazards such as cracking, water seepage, hollowing, falling off of the ordinary wall insulation layer are solved, and there is no need for secondary maintenance and replacement, so that the building is not demolished, the insulation is not bad, and the life of the building is achieved.

In addition, the integration of structural external wall insulation can be combined with prefabricated buildings to realize the factory construction and gradually implement the industrialization of construction.

In the cold winter, many home decoration will do wall insulation construction, to maintain the indoor temperature of the house, so that we are more comfortable and warm, and now people also have a certain waterproof effect on the wall insulation construction materials, which are also widely used in the housing construction industry, and the method of wall insulation construction basically has four processes, namely: the cleaning of wall debris, the measurement of the insulation board, the paste and grinding of the insulation board.

In terms of external wall insulation construction, first of all, we have to clean up the debris on the wall, clean the wall, maintain a certain degree of cleanliness, and still use cement ash to repair it in some places on the wall.

It is also necessary to measure accurately, especially in the position of the door, to prevent the inclination of the insulation board in the back construction.

If the external wall insulation work is only limited to pasting the insulation board, then its adhesion to the wall is not strong enough. If the insulation board is firmly attached to the wall and will not fall easily, it is also necessary to double strengthen the machine. In the construction process of external wall insulation, you can use an electric hammer to chisel a few holes in the insulation board, and then nail them, so that the firmness is very sufficient.

Finally, it is the most important and last step in the construction of external wall insulation, after all the insulation boards are installed, it is necessary to ensure that the surface layer is smooth and free of impurities, otherwise it will be very difficult to wipe the wall in the future, and the effect is also greatly reduced. If it is after the installation of the insulation board, the gap between the board and the board is relatively large, you must do the filling, keep the wall not too big a gap, the most important thing is to do the preliminary work for the future plastering wall.

The above is the simple four steps of the external wall insulation construction, do not underestimate the role of the insulation board, if the paste process is done in place, then its role will not be underestimated, not only heat insulation, heat preservation, but also for the protection of the wall is also very obvious.

There are several methods of exterior wall insulation:

1. Exterior wall insulation materials: inorganic active exterior wall insulation materials, Portland insulation materials, ceramic insulation materials, rubber powder polystyrene particles, steel wire mesh cement foam board (Shule board), extruded plastic board XPS, rigid foam polyurethane on-site spraying, rigid foam polyurethane insulation board, sprayed polyurethane rigid foam, EPS foam board, foamed cement.

2. EPS board is the abbreviation of expandable polystyrene board, which is made of expandable polystyrene material through pre-hairing, curing, molding, drying and cutting technologies. This kind of exterior wall insulation material can not only be made into foam plastic products with different densities and shapes, but also can produce foam boards of different thicknesses.

3. Phenolic foam, phenolic foam is an internationally recognized new type of exterior wall insulation material with a promising future in the construction ranks. This kind of external wall insulation material does not burn in the fire, does not melt, does not emit toxic smoke, and has the advantages of light weight, non-toxic, non-corrosive, thermal insulation, energy saving, sound insulation, and low price.

4. XPS extruded polystyrene board thin plastering exterior wall insulation material has the characteristics of higher strength, good thermal insulation function, and stronger air permeability. This material is a relatively warm insulation system, which has been widely used in construction projects with high thermal insulation requirements such as cold areas, real estate, and cold storage projects.

5. Exterior wall insulation mesh cloth is a new alkali-resistant commodity made of medium alkali or alkali-free glass fiber mesh as the material, woven into glass fiber mesh cloth as the base material, and then dried by coating acrylic acid copolymer solution. The product has the characteristics of stable structure, high strength, good alkali resistance, anti-corrosion, anti-cracking, good enhancement, and simple construction, easy to implement, and is a new building material for exterior wall insulation engineering.

There are extruded plastic boards, rock wool boards, hanging nets and rivet plastering.

You can ask a professional who does thermal insulation.

The construction process of external wall insulation is different due to the different external wall insulation materials, and the construction and installation of external wall thermal insulation rock wool board is taken as an example.

1. Grassroots treatment. The base wall should be solid and flat, and the surface should be free of foreign matter, dirt and other adhesions that affect the bonding.

2. Mixing of adhesive mortar. The adhesive should be prepared on site, and the stirred adhesive should be protected from direct sunlight; The coagulated adhesive should not be stirred with water.

3. Pre-paste the flip bag mesh cloth. Before pasting the rock wool board, the insulation terminal is pasted with a 300mm wide alkali-resistant mesh cloth first, and the size of the rock wool board and the bag is not less than 100mm, and the alkali-resistant grid cloth strip is laid on the adhesive mortar that is wiped on the base layer, and evenly pressed into the adhesive with a stainless steel trowel, so that the remaining part of the mesh cloth is thrown out for future rebaging.

4. Paste the rock wool board. Before pasting, the aluminum alloy base bracket should be nailed to the base wall with a bracket. The length of the rock wool board should not be greater than 1200mm, and the width should not be greater than 600mm.

When pasting rock wool, the adhesive should be applied to the back of the rock wool. Before pasting the rock wool board, check whether the rock wool board is dry and whether the surface is smooth and clean; Wet, uneven surface, and polluted rock wool boards shall not be used.

5. Install the first batch of anchor bolts. After the rock wool board is pre-fixed with adhesive mortar, the first batch of anchors can be drilled and installed after an interval of 24 hours, and the number of the first batch of anchors should be 30% of the total number of designed anchors.

6. Batch coating surface mortar and hanging net. After the rock wool board is pasted for 1-2 days, the construction of the plastering protective layer can be carried out; Wipe the first plastering mortar on the rock wool board, with a thickness of 2mm-3mm, and press it into the alkali-resistant mesh cloth while it is wet.

7. Install the anchor bolt and batch coating surface mortar for the second time. Generally, after 12 hours, when the mortar is slightly dry and hard enough to touch, the second batch of anchors is installed, and the number of anchors in the second batch should be 70% of the total number of designed anchors. In order to achieve a better waterproof and thermal insulation effect, the installed anchors are coated with surface mortar in batches, and the anchors are required to be fully covered.

After the glue is completely dry, a large area of plastering mortar is applied in batches. After the construction of plastering mortar, the flatness, verticality and square angle of the anti-crack protective layer should be checked, and the plastering mortar should be used for repair if it does not meet the requirements.

8. Install and accept, and prepare to enter the next process.

1. Minimize the shape coefficient of the building. The shape coefficient refers to the ratio of the surface area to the volume of the building, and the larger the surface area, the higher the energy consumption.

2. Select the appropriate window to wall area ratio, use windows with small heat transfer coefficient, such as insulating glass plastic windows, aluminum alloy hollow windows with thermal insulation bridges, and solve the sunshade problem of good things to the outside windows. Energy-saving buildings should not be equipped with bay windows and corner windows.

3. Reduce the heat transfer coefficient of the cabin surface and exterior wall as much as possible, and enhance the thermal insulation performance of the roof and exterior wall.

The exterior wall adopts the external wall insulation system, which can not only effectively improve the thermal insulation performance of the external wall, but also solve the common cracking and water seepage phenomena of the external wall.

Through the calculation and analysis of a large number of buildings, the external thermal insulation system is required in most buildings to meet the requirements of energy-saving standards.

By using light-colored finishing materials to reflect sunlight, the ability of exterior walls and roofs to insulate the heat of summer and spring can also be enhanced to a certain extent.

1. Grassroots cleanup.

The substrate plays a decisive role in the bonding of the insulation board, and the base layer is tested first, and the bonding strength should be reached, and the moisture content should be less than 10%.

2. Mixing of adhesive mortar.

Mix the adhesive plastering mortar with water in a weight ratio of 4:1 and stir it evenly at a ratio of 4:1, and after standing for 5 minutes, stir the adhesive mortar again and start to do the painting work.

Third, the paving of the insulation board.

After the painting is completed, the laying of the benzene board begins. First play the horizontal line, install the aluminum bracket at the bottom, and then paste the horizontal layout board in turn, note that the minimum length of the benzene board should not be less than 200, and the gap should not be exceeded.

Fourth, the paste of the insulation board.

First scrape with a square tooth plastering knife, and then pull out the ash strip, about 5cm wide, the smearing area is larger than the whole board area, you can not use your hand to pat in the paste, apply the tool to pat and stick to the wall, the four sides of the benzene board can not be left with viscose, to ensure that it is smooth, and the seam is as small as possible.

Fifth, grinding. After the benzene board is paved, it is allowed to stand for one day and the grinding work begins. Use a grinding plate to polish the unevenness, and then use a brush to clean the base surface.

Sixth, the reinforcement layer construction.

After the benzene board is dried and cleaned, the construction is started, the first batch of priming is done, and then the mesh cloth is wiped into the mortar, and the color of the mesh cloth is not visible, and then the surface is scraped flat with a scraper. After drying, the application of the finishing layer is carried out. After the mortar is finally set, the surface is sprinkled with water to prevent cracks from appearing due to water loss on the surface.

After an interval of 6-8 hours, start sanding and leveling.