The function of exterior insulation materials in preventing fires

1 The relationship between thermal insulation and fire prevention in external thermal insulation work Building energy conservation is an important part of the implementation of the national policy of 'energy saving and emission reduction”.

External thermal insulation work is an important means to achieve energy conservation in buildings. Therefore, the effort "is the "outline" of the external thermal insulation work, and all work should be done around this center.

Meet the requirements of building fire protection. A large amount of high molecular organic materials are used in exterior insulation projects. How to ensure that fire accidents are not caused by the use of these materials during construction and use is a key factor in the work of external insulation. It is also an important guarantee for the successful completion of the target mission. otherwise. The goal cannot be achieved. It also poses a threat to people's lives and property. Raised the question of the whole society. It hinders the normal advancement of external insulation work on the external wall.

Meet structural safety. Long-term energy saving requirements. The external thermal insulation project is not only to meet the completion acceptance. It is also necessary to meet the long-term energy saving effect in the long-term use process. No cracking. No water seepage or falling off is another key element in the external thermal insulation project.

Easy to operate. Easy to supervise. Actively implement the standardization strategy. It is the third "mesh" of external thermal insulation work. The construction is random. Products and technologies with poor quality control can not truly achieve the goal of energy saving.

2 The goal of fire prevention work in the external thermal insulation project requires fire protection requirements for the external thermal insulation project. And it is very important. But what are the current requirements for fire protection? This concept is very vague. The Ministry of Public Security documents require "non-combustible". But this "non-combustible" means "cannot be burned" or "not self-burning if it can't be" burned. That requirement is high. It can only be inorganic materials or It is said to be a fireproof material: if it does not carry the fire source to continue its own combustion. The requirements may be objective, many high-efficiency insulation materials and insulation system technology can meet this requirement, and there is still much room for the development of insulation technology. When talking about fire prevention technology, it is necessary to first clarify the fire protection requirements of the external thermal insulation project.

The insulation material is not a fireproof material. Insulation materials should not be treated with the fire performance requirements of fireproof materials. Can't ''be'' burned material. Often not energy efficient materials. Misreading the fire protection requirements of insulation materials and insulation systems, this is contrary to the purpose of our external wall insulation work: there are two fire protection requirements for exterior wall insulation projects: First, it will not be easily exposed by electric welding, gas cutting, etc. during the construction process. Ignition; the second is in the process of using the system. It will not spread under fire. Zoom in on the fire area. Simply put, the insulation material or the insulation system does not carry the fire itself and continues to burn to expand the fire accident. Whether it is a "fire" phenomenon or a 'fire' accident. As long as our insulation materials and insulation system are controlled within the scope of 'burned', our goal is achieved.

Therefore, we can think. Insulation materials and insulation systems are "will not carry the fire source itself to burn and will not be ignited by open flame during construction.

Do not spread when a fire occurs during use. Does not spread. It is the target requirement for fire prevention work in external thermal insulation projects.

3 technical ideas for thermal insulation and fire prevention work of external thermal insulation engineering. To solve the fire prevention problem during construction, it is necessary to pick up the material. Traditional flammable organic materials are difficult to guarantee fire safety during construction. But 58 green buildings are not only non-combustible inorganic materials to solve the problem. Many new flame retardant and flame retardant organic insulation materials can completely avoid accidents. "Fire" management itself is a requirement of engineering specifications, as long as it is used. Properly operated. Many good organic materials can also meet this requirement. To solve the fire problem during use, it is really necessary to make a fuss about the system structure. But if you only talk about fire barriers. It may not be able to completely solve the system fire safety problem. The material of the insulation layer and the thickness of the insulation layer will limit the fire safety performance of the system. therefore. Material safety and system security are actually a comprehensive issue. Independent debates only complicate the contradiction.

to this end. We may wish to design a new theoretical system for the external thermal insulation system, that is, the "external thermal insulation system" is first divided into "insulation construction" and "fireproof" insulation construction '' is based on thermal insulation materials. Other bonding materials. The surface (finished) material is a secondary component. The structural layer that reflects the energy-saving function: “'fireproof construction'' refers to a special structure that prevents the spread of fire. Such as fire barriers, fire provocation, fire compartments, etc. As a complement to the system construction. When the "insulation structure" does not meet the fire protection requirements. It is necessary to set and strengthen the "fireproof structure; on the contrary, it can weaken or cancel the "fireproof structure". In general, the insulation system with excellent fire performance must have the corresponding "insulation structure and these fireproof" insulation structures. The material must also have good fire performance. As long as a certain flame retardant setting and fire management, it can solve the fire problem in the construction process and the fire spread during use. For example: thermosetting polyurethane rigid foam.

The "insulation structure" formed by the thermosetting phenolic foam does not have fire propagation properties. If its flame retardant reaches the B2 level and above. It is also not easy to cause fire during construction. Another example: the "insulation structure" formed by thermoplastic polystyrene foam is easy to spread fire, and must be set and strengthened. The technical idea of ​​fire prevention work for external thermal insulation engineering should focus on the "insulation structure". Actively develop and promote the technology and products of the fireproof "insulation structure". Strengthen the fireproof structure of the non-fireproof ''insulation structure'' ''Technical measures. This will resolve conflicts well. Achieve a win-win situation in insulation and fire protection.

4 Conclusion The relationship between "insulation" and "fire prevention" in the external thermal insulation work is the relationship between "class" and "mesh". "Mesh" is the working element of ''class'. But it cannot hinder and damage the external wall. The target requirement for fire prevention of thermal insulation engineering is that the fire source itself will not continue to burn and expand the fire area during the construction process. It should meet the fire protection requirements of the thermal insulation project. Correctly understand the meaning of ''non-combustible'). It is the guiding ideology for solving substantive problems.

Accelerate the establishment and improvement of a new theoretical system for exterior insulation systems. The relationship between "insulation system" and "insulation structure" and "fire protection structure" is clarified.

Actively explore and promote the fundamental way out for the healthy development of high thermal insulation, high flame retardant insulation materials and fireproof insulation.

Address: K Linlin Industrial K, Cangzhou City, Zhejiang Province, Zip Code: 312462. Green Building 59

(Finish)

LED Grow Light Bar Full Spectrum 640W

LED Grow Light Bar Full Spectrum 640W,the best led grow light bar use Samsung Quantum Board grow led, 640w with 8pcs grow bar , Quantum Board Samsung pane works well for all plant growth.