What are the common insulation materials?

Leading Word: The roof insulation material is a kind of decoration material that has a relatively large demand in recent years, and many people do not know about the roof insulation materials. Here is a look at the new roof insulation together with the Xiaobian. What are the insulation materials?

In general, the common characteristics of insulation materials are light, loose, porous or fibrous, and the internal non-flowing air blocks heat conduction. Among them, inorganic heat-insulating materials have the characteristics of non-flammability, high use temperature and good chemical corrosion resistance. Organic heat-insulating materials have the characteristics of low water absorption rate and good water impermeability.

The most common insulation materials are: inorganic insulation materials and organic insulation materials. Inorganic heat-insulating materials include expanded perlite, aerated concrete, rock wool, glass wool, etc. Organic insulating materials include polystyrene foam, polyurethane foam, and the like.

Polystyrene runs in two types: plastic inflated and extruded, and self-extinguishing after adding flame retardant. Expanded polystyrene sheet is light and easy to use, and it is very common. Extrusion polystyrene has high strength and excellent weather resistance, and it will have great development.

Polyurethane foams are classified into two types: polyethers and polyesters, based on the raw materials used. They are made by foaming reactions, and are divided into soft and hard fats. In addition, there is a kind of aluminum foil thermal insulation material, which is made of aluminum foil and kraft paper, and then compounded with corrugated paper to form a plate. It can also be made of polyvinyl chloride sheet aluminum plated and pressed, and can be set in multiple layers to serve as a sandwich wall or roof. Lightweight, moisture-proof, heat-insulating and heat-insulating properties are all good.