Is it illegal to punch holes for exterior wall insulation, and can you punch holes for exterior wall

It is illegal to insulate and punch holes in external walls. It is illegal for the owner to punch holes in the exterior wall without permission. The following behaviors are prohibited in residential interior decoration activities:

1. Change the main body and load-bearing structure of the building without the design plan proposed by the original design unit or the design unit with the corresponding qualification level;

2. Change the room or balcony without waterproof requirements into a bathroom and kitchen room;

3. Expand the size of the original doors and windows on the load-bearing wall, and remove the brick and concrete walls connecting the balcony;

4. Damage the original energy-saving facilities of the house and reduce the energy-saving effect;

5. Other influences on the building structure.

and use safe behaviors.

Exterior wall insulation is made of polymer mortar, fiberglass mesh cloth.

The exterior wall is composed of flame retardant insulation board or fireproof insulation board, etc., and is bonded on site.

The reason why the insulation layer is not allowed to be perforated is to ensure the thermal insulation performance and structural safety of the building. Insulation is a material used to enhance the thermal insulation performance of a building, and it is usually located on the exterior wall or inside the roof of a building. Punching can compromise the integrity of the insulation, leading to the permeability of heat and moisture, which in turn can affect the insulation of the building.

First of all, the main function of the insulation layer is to reduce heat transfer. When a hole is punched, a thermal bridge is formed, allowing heat to be quickly conducted through the hole to the inside or outside of the building, causing the insulation to lose its ability to act as an insulator. This will lead to increased energy consumption in buildings, higher heating costs in winter, higher cooling costs in summer, and potentially unstable indoor temperatures.

Secondly, perforation can also cause moisture to build up inside the insulation. Insulation usually has some waterproof properties, but if there is a hole in the case, moisture will easily enter the inside of the insulation and accumulate. Long-term accumulation of moisture can lead to rot and mildew of insulation materials, affecting their thermal insulation performance and service life, and may also cause damage to the structure of the building.

In addition, perforation poses a potential threat to the structural safety of the building. To a certain extent, the insulation layer bears a part of the load, such as wind pressure, seismic resistance, etc. If holes are drilled in the insulation layer, it will have an unpredictable impact on its mechanical properties, which may reduce the overall structural strength and stability of the building, and even increase the risk of disasters.

In short, the insulation layer is not allowed to be perforated in order to ensure the thermal insulation performance and structural safety of the building. During the design and construction process, it is necessary to strictly follow the relevant codes and standards, select insulation materials that meet the requirements, and take appropriate construction measures to ensure the integrity and function of the insulation layer.

Exterior wall insulation can be punched, but when punching, it is important to note that the size of the hole must be small. Generally, punching 8mm holes in the wall will hardly have any impact on the wall, and naturally it will not affect the insulation layer. In addition, the depth of the insulation nails that we commonly install the insulation board is generally the thickness of the insulation board plus about 30mm, which means that we need to punch a hole depth of 30mm on the stressed wall.

For our exterior walls, it is basically a two-four wall or a three-seven wall, so a 30mm Senkong will not damage the wall.

Precautions for exterior wall insulation construction 1, each sub-grid unit of exterior wall insulation must be completed at one time. It is forbidden to have a connection in a compartment. Secondly, when approaching the edge of the lattice strip, it should be finely processed.

Do not wipe the new plastering mortar to the adjacent plates, and avoid secondary polishing of the finished plates when grinding. The third horizontal lattice joint position is not less than the height of each step of the scaffold, and the fourth construction wall should take sunshade and windproof measures. Then, after the construction is completed, avoid rain washing for 24 hours.

2. At present, China's external wall insulation technology is developing rapidly, which is the focus of energy-saving work. Although the technology and construction quality of external insulation products still need to be improved, the promotion and implementation of external thermal insulation technology of building external walls is not only conducive to the sustainable development of the country, prolonging the service life of buildings, but also conducive to saving daily expenses for every household, which is the general trend. However, the external insulation of the external wall has relatively high requirements for product technology and construction quality, and puts forward higher requirements for the construction team.

Therefore, in order to improve the quality of anti-external wall insulation construction quality, it is necessary to strictly control the materials and construction.

3. The parts that are easy to be overlooked in the practice of external wall insulation are those linear overhang parts, such as balconies, rain covers, balcony railings against the exterior wall, shelves of air conditioning outdoor units, attached pilasters, bay windows, decorative lines, partition walls of external walls and balconies, eaves, the inside and outside of the parapet wall and the top pressing, gutters, and the doctor's hat with roof decoration modeling.

4. For those parts that have not been insulated, the deformation of the wall affected by temperature is different from that of the wall that has been insulated, the thermal expansion and contraction are inconsistent, and the plastering layer is easy to hollow. After several years of damage at the junction of the temperature difference, it will cause these uninsulated parts and the wall junction of the external thermal insulation to produce damage cracks, infrared test shows that these neglected parts are obvious thermal bridges, compared with the insulated parts, the temperature is affected by the environment is very obvious, and the resulting temperature difference stress is easy to cause cracks at the junction of the part and the main part. At the same time, the presence of these thermal bridges will also have a detrimental effect on the overall energy saving effect.

Summary. To put it bluntly, the insulation layer is a layer of foam board, which can not bear weight, and some things are hung through the insulation wall and hit the load-bearing wall. Insulation layer in the north is a necessary structure of the building, 03 years after the basic addition to the outside of the building wall, if added to the wall inside the wall is called the internal insulation wall.

Interior insulation walls are now rare in newly built developments, but occasionally appear on balconies or walls adjacent to staircase corridors. The method of judging is very simple, as soon as there is an empty sound, you can easily pierce it with an awl (or nail). Generally, the insulation material in the insulation wall is benzene board, which looks like white granular foam board.

To put it bluntly, the insulation layer is a layer of foam board, which can not bear weight, and some things are hung through the insulation wall and hit the load-bearing wall. The insulation layer in the north is a necessary structure for the bright curved building, and after 03 years, it is basically added to the outside of the building wall, and if it is added to the inside of the wall, it is called the internal insulation wall. Interior insulation walls are now rarely found in newly built buildings, but occasionally on balconies or walls adjacent to staircase aisles.

The method of judging is very simple, as soon as there is an empty sound, you can easily pierce it with an awl (or nail). Generally, the insulation material in the Chixin insulation wall is benzene board, which looks like a white granular foam board.

1. The expansion screw is considered according to the actual thickness of the insulation wall, and the length of the expansion screw cannot be greater than the thickness of the insulation wall. 2. If there is no way to penetrate all the walls, and the expansion screws can be firmly attached to it. 3. If the thickness of the insulation wall is more than three centimeters, you can directly use an electric drill to punch holes in the wall and use holes to expand screws.

Summary. Hello, I am happy to answer for you: there is no provision for the external wall insulation opening that does not count labor costs, and the specific reasons are as follows:

1. The insulation layer is only calculated to the inside of the external window, and the baseboard part is calculated according to the area. 2. If there are protruding and recessed parts on the outer wall of the same floor, they shall be calculated according to the respective areas of the protruding part and the recessed part. 3. The calculation of external wall insulation is calculated according to the width of the opening facing the front of the insulation layer, such as:

If you have two windows on an exterior wall, each with a width of 1 meter, the amount of insulation for the exterior wall is 2 square meters. Therefore, there is no provision for the non-calculation of labor costs at the edge of the external wall insulation opening.

Hello, I am glad to answer for you: there is no provision for the external wall insulation opening that does not count labor costs, and the specific reasons are as follows: 1. The insulation layer liquid is only calculated to the inside of the exterior window, and the baseboard part is calculated by area.

2. The part of Zheng Jin on the outer wall of the same floor that is protruding and concave shall be calculated according to the respective areas of the protruding part and the recessed part. 3. The calculation of external wall insulation is calculated according to the width of the opening facing the front of the insulation layer, such as: you have an external wall, there are two windows, and the width of each window is 1 meter, then the engineering quantity of the external wall insulation is 2 square meters.

Therefore, there is no provision for the non-calculation of labor costs at the edge of the external wall insulation opening.

The exterior wall is insulated, and the hole is faced, is there a rule that the area is not counted?

Hello, according to the "Code for the Calculation of Construction Area of Construction Projects" GB T 50353-2013, for external wall insulation, the side of the hole is not required to calculate the area, and it is clearly pointed out in the regulations that the calculated construction area of the insulation layer of the insulation layer of the trace skin insulation building is the wall area of the completed protective layer imitation.

Hello, according to the "Construction Project Filial Piety List and Pricing Specification" (GB 50500-2013) has clear provisions. Among them, the first article stipulates the calculation method of the area of additional components of walls, beams, columns, floor slabs and roofs, and the article stipulates the calculation method of the area of additional components of door and window openings.