Contact Us





Add: Room 606 Hong Mei Busines Building, No.8075, Humin Rd, Xuhui, Shanghai, Shanghai

Home > News > Content
How To Reduce Housing Heat Loss Effectively? Nov 15, 2017

What is heat loss of the house?

Since the 1970s, due to the increasingly serious energy crisis, building energy-saving thermal insulation has drawn more and more attention in the national policy and personal consciousness. According to the requirements of "China's energy-saving program," building energy conservation Up to 50%, of which 30% energy saving building materials, heating system energy saving 20%. Energy costs generally account for 70% -80% of the company's costs.

In colder areas, outdoor temperatures are lower in winter and cold air is conducted from the outer envelope (exterior walls, doors, windows, roofs and floors) of the building to the interior to lower the room temperature. At the same time, the cold air passes through the doors Cracks, windows and other places infiltrated, so that a large number of indoor heat loss phenomenon. Because in the building of heat transfer is a more complex process, the impact of heat loss of many factors, generally summarized as two main parts: the basic heat loss (also known as the basic heat consumption) and additional heat loss (also known as additional heat) . In order to reduce the heat loss of the building, the exterior wall method, the type, thickness and performance of the thermal insulation material, the reasonable window-wall ratio, the thermal insulation and the sealing performance of the outer window outer door should be economically and reasonably selected so as to minimize the heat loss.


Statistics show that the heat loss of the external wall accounts for about 32.1% ~ 36.2% of the total building energy consumption. Therefore, the building is an essential part of the building exterior insulation structure is used to heat treatment, thereby reducing building energy consumption, can reduce the heating and cooling energy used to reduce CO2, SO2 emissions, to avoid waste Renewable resources, more importantly, to improve living comfort, in order to protect the environment we live on.

How to reduce building heat loss?

Exterior insulation products originated in Europe in the 1940s, initially used to make up the wall cracks, in the actual use of the process and found that the composite wall material has good thermal insulation properties, in the actual use of the process can save energy Consumption.

Subsequently, the United States introduced such products in the 1960s and carried out a great deal of basic research in accordance with the specific climate and environment characteristics of the country. Since the 1970s, some economically developed countries in Asia and Europe have also generally attached great importance From the development and application of building materials, and building materials and insulation materials were identified and managed to force the construction industry in the implementation of new building energy efficiency standards, including the development of energy-saving wall insulation standards is that countries in the formulation of energy-saving policy priorities The weight.

In the 1980s and 1990s, self-insulation wall materials such as aerated concrete and hollow block began to be put into use in China's building energy saving industry. In order to reduce the energy consumption of the building's outer wall, the "Nine-Five" "Tenth Five-Year" Plan, the development goals of building energy efficiency, the main tasks and measures have been made to deploy March 14, 2011 China's Ministry of Public Security "Document No. 65" instructions: the civil construction insulation materials into the construction of fire Design review, fire inspection and acceptance of the scope of the record; civil construction insulation materials must be used for the combustion performance of Class A materials in such a series of energy-saving policies, regulations, standards and mandatory provisions under the guidance of China's residential construction energy conservation work In-depth, energy conservation standards continue to increase, the introduction of the development of many new energy-saving technologies and materials, vigorously promote the use of residential buildings.

With the continuous improvement of building insulation technology, people have put forward higher requirements on the insulation, fire prevention, green and safety of external wall insulation products. Faced with such market conditions, BJSl Tech Status quo and development trend, around the building envelope fire insulation technology, research and development of the combustion properties of Class A new patented external wall insulation - AB inorganic fiber vacuum insulation board, the use of inorganic materials as the core material, while maintaining effective insulation at the same time, capture The insulation, fire difficult to compatible technical difficulties! Products with fire, water, light, high strength, good weather resistance characteristics, its excellent environmental protection, safety is the leading advantages of similar products. After testing, the product meets the requirements of the national building energy-saving industrial policy and related technical standards, and has good application prospects.