Analysis on key points of building energy saving construction

In order to ensure the overall quality of the project, the construction shall be carried out in strict accordance with relevant specifications, and the project supervision shall be strengthened in combination with the actual situation of the project to ensure the orderly progress of the project.

QQ group 925078799, password? How to improve the level of project cost audit? Do you make the difference between the four levels of project manager a, B, C and D? The difference between the first construction and the second construction, the “crooked brain” of the budgeter, which makes the completion settlement faster.

Therefore, improving the sealing performance of external windows plays a significant role in reducing the energy consumption of residential buildings.

It can not only transmit outdoor solar energy and visible light like float glass, but also reflect the secondary radiant heat like infrared reflector.

It is a new coating product.

Exterior wall thermal insulation is a construction method to use benzene board, thermal insulation mortar and other thermal insulation materials inside and outside the exterior wall to make the building achieve the function of thermal insulation and energy saving.

One machine has multiple functions and high equipment utilization.

The wall base is treated with interface mortar to make the adhesion of materials with different water absorption uniform; The insulation layer forms a whole without slab joints.

70% of the energy comes from soil, and the heating coefficient is as high as 3.4 ~ 3.5.

The window wall ratio refers to the ratio of the external window area to the unit area of the room facade.

The usual practice is to set this energy-saving material between the roof and the waterproof layer.

There may be great differences between the window wall ratio in different directions of the same building and the window wall ratio of different buildings.

Energy saving of ground source heat pump (1) using surface shallow geothermal resources as cold and heat sources belongs to renewable energy utilization technology.

Therefore, the effective utilization of solar energy in the construction process is the key direction of the development of energy-saving technology.

This method plays an important role in reducing house energy consumption.

(2) When heating, electric energy is used to transport the heat in the soil indoors.

Reasonably arrange the window wall ratio of the building.

In the application of roof energy-saving technology, the reverse method is a method with high utilization rate.

New door and window materials shall be used, low radiation glass shall be adopted, and multi-layer metal and metal oxide films shall be coated on the glass surface.


The exterior wall external insulation system of rubber powder polystyrene particles is a non porous cavity external insulation method formed by on-site plastering.

In the construction technology of China’s residential construction industry, solar energy technology has been widely used.

What should we start from when we just enter the cost industry?..

Energy saving of doors and windows 1.

The glass has high transmittance to infrared and visible light and can absorb a large amount of solar energy.

Cooperate with various elastic strips to solve the sealing problem between glass frame and glass.

The proportion of slow growth intensity and the filling of a large number of fibers make the insulation layer not easy to empty; The anti crack protective layer adopts anti crack mortar composite hot-dip galvanized steel wire mesh and is anchored on the foundation wall with nylon expansion bolts, with good seismic performance; The special tiling mortar and tiling materials used in the finishing layer have strong adhesion, good flexibility and good crack resistance and waterproof effect.

For example, a solar cell power generation system is installed on the roof of a building to convert the heat energy radiated by the sun into usable electric energy, which is then stored by the battery pack and finally transmitted to the power supply facilities through relevant lines.

The solar radiant heat entering the room through doors and windows and the heat dissipation of indoor heat source have a great impact on the air conditioning energy consumption of residential buildings; Cold air enters the room through the gap between doors and windows, which has a great impact on the heating energy consumption of residential buildings.

Improve the air tightness of doors and windows.

Chinese buildings mainly use solar energy in passive solar heating, solar hot water, active solar heating and air conditioning, solar power generation, etc.

(3) Inverted roof mainly refers to the replacement of the previous insulation layer and waterproof layer.

In addition, in this way, the temperature around the building can be reduced, which will also have a beneficial impact on reducing the temperature inside the house.

Generally, the larger the proportion, the better, at least not less than 30%.

Therefore, the inverted roof has good effect.

According to the research, the building surface temperature of roof greening is 6.3 lower than that of ordinary buildings.

(3) When the demand is the same, the power consumption is reduced and considerable environmental benefits are brought.

(4) Implement roof greening room.

Compared with ordinary air conditioners, the refrigeration energy saving is 40% ~ 50%, and the operation cost is low.

(4) It can realize the heating and cooling of buildings and provide domestic hot water.

The better the window wall ratio of the house, the better the daylighting effect, the more transparent and modern.

The reverse paving method is to place the thermal insulation layer on the waterproof layer to achieve the purpose of thermal insulation.

Increasing the use of energy-saving technology in the construction process can not only reduce energy consumption, but also inhibit environmental pollution, which plays a positive role in China’s sustainable development.

Solar energy saving solar energy saving technology is safe and reliable, pollution-free, pollution-free, and does not need to consume energy.

The glass has low transmittance and high reflectivity to long wavelength infrared thermal light, and can keep warm.

It can not only control the sunlight, but also save energy and adjust the temperature.

The waterproof layer is set because the thermal conductivity of the material in the previous insulation layer will change greatly after absorbing water, which will not only complicate the construction, but also increase the cost.

Roof energy saving technology (1) select appropriate thermal insulation materials, and try to select thermal insulation materials with high strength, relatively small density and not easy to absorb water.

The reflectivity to these light is low, which can reduce the loss of solar energy.


Increasing the use of energy-saving technology can also optimize the building structure, improve the overall quality of housing construction projects, and promote the development and progress of the industry, which is of great practical significance.

Swivel Coupler 40mm

(2) Select appropriate methods to improve the thermal insulation effect of buildings.

It is the most abundant and clean energy in the available resources.

The flexibility of each structural layer of the system is matched, and the thermal stress is fully released.

The use of strong sealing materials for doors and windows, plastic foam seal isolation layer on both sides can greatly improve the air tightness of the external windows.

Fill the gap between the wall and the door and window frame with soft elastic sealing material or sealant; A foam sealing strip or rubber seal is adopted to design ventilation inner grooves or high and low joints to solve the gap between door frames or door fans.

In the actual construction process, aerated concrete block, asphalt perlite board and cement polystyrene board can be used as thermal insulation materials.

Wall insulation and energy conservation the key to building energy conservation is building exterior wall insulation, which is the key to building energy conservation.


Related Post