What material is the floor heating insulation board?

Floor heating is often used in northern China, which can play a role in heating in winter. The floor heating insulation board is the core component of floor heating, which plays a great role in the work of floor heating and can prevent the heat from losing downwards. At present, there are many kinds of materials for floor heating insulation board. When choosing floor heating, you must choose it in detail. Good insulation board has good insulation effect and long service life. The performance index of insulation board affects the heating effect of floor heating in many ways. Here, I would like to introduce some material knowledge of floor heating insulation board to you.

What is the material of floor heating insulation board?

Press out film

Extruded board, also known as XPS board, is the third generation rigid foam thermal insulation material. XPS board is extruded from polystyrene resin and other additives. It has a continuous and uniform surface layer and closed-cell honeycomb structure, which overcomes the complicated production process of EPS board and has superior performance that EPS board can't replace.

The thermal conductivity of extruded board is only 0.028 W/(m k), which is lower than that of foam board, so the thermal insulation effect is better than that of foam board. Similarly, the water absorption of extruded board is also very low, and the moisture-proof and waterproof performance is very good. Different from foam board, extruded board has high strength, good compression resistance, not easy to be damaged, convenient transportation, stable performance and environmental protection.

Floor heating foam board

Floor heating foam board, also known as polystyrene foam board and EPS board, is a white object formed by heating expandable polystyrene beads containing volatile liquid foaming agent in a mold. Mainly used for building wall and roof insulation, composite board insulation, cold storage, air conditioning, vehicle and boat insulation, etc., with a wide range of uses.

Material selection of floor heating insulation board

conductivity for heat

Thermal conductivity is a very important standard for thermal insulation materials. Foam board has independent bubble structure, low thermal conductivity, generally below 0.039 W/(m k), low density and light weight. In addition, the surface of foam board has low water absorption, good impermeability and can be recycled, and its recycling degree is the highest among plastics. However, the strength and bearing capacity of foam board are poor and it is easy to crack. If it is used for floor heating and insulation, it is more troublesome to strengthen the treatment. In addition, the foam board is flammable, the smoke generated by combustion is toxic, and the safety and environmental protection are not high.

Excellent hydrophobicity and moisture resistance.

Water absorption is an important parameter to measure thermal insulation materials. After water absorption, the thermal insulation performance of thermal insulation materials decreases. At low temperature, the absorbed water is easy to freeze, destroying the structure of thermal insulation materials, thus reducing the compressive strength and thermal insulation performance of the board. Therefore, high-quality floor heating extruded insulation board must have good moisture-proof performance.

The above are the common materials and performance requirements of floor heating insulation board. Extruded board is a kind of excellent material with excellent performance, so it has good heat preservation effect, wide application, long service life and is not easy to be damaged. Foam board is mainly used for wall insulation, which is cheaper, lighter and less difficult to construct. The floor heating insulation board must have many characteristics, and it requires high thermal conductivity and water absorption.