First, the insulation board of floor heating should have good flame retardant performance and environmental protection.
The insulation board of floor heating should be in contact with the floor heating pipe. When the temperature of the heating medium reaches 45 ~ 60 degrees Celsius, organic matter will volatilize toxic or odorous gas, which is not conducive to human health. This is the difference between it and external wall or roof insulation materials. Therefore, it will be the development direction to develop composite materials with good heat insulation function and flame retardant performance.
Second, the choice of floor heating insulation board should have good insulation performance.
This kind of floor heating insulation board with good insulation effect can prevent heat from being transferred to the floor and lost to neighboring households, and ensure one-way conduction of heat to the room. The index that reflects the thermal conductivity of materials is thermal conductivity, and the factors that affect the thermal conductivity of materials are material, porosity, opening state, humidity and ambient temperature. Different types of floor heating have different thermal conductivity; Different insulation materials need different insulation thickness to meet the design thermal resistance requirements; Same material, different bulk density, different thermal conductivity. The higher the porosity of floor heating insulation board, the more closed holes, the lower the thermal conductivity and the better the insulation performance. The thermal conductivity is different in different moisture states.
Thirdly, the choice of floor heating insulation board should have high compression deformation resistance.
Floor heating insulation board should bear the pressure from heating pipe, concrete filling layer, floor slab and active load on the floor slab. Therefore, if the insulation board does not have enough bearing capacity, it will be deformed due to uneven stress, which will lead to cracks in the concrete filling layer and floor slab, or lead to abnormal deformation of the heating pipe at high temperature, which will reduce the service life. Foamed cement has strong compressive capacity, so it is recommended to construct in a large area.
High-quality floor heating insulation board can not only ensure the use effect of floor heating, but also make floor heating more energy-saving and prolong its service life. Of course, the performance of floor heating auxiliary materials depends largely on the installation and application of floor heating. Some floor heating companies have low installation prices, and many reasons for the low price of floor heating are that some inferior auxiliary materials are selected for the floor heating insulation board, which leads to poor use effect or even inability to use the floor heating.