isulation - in indoor, for example, in winter to prevent from indoor to outdoor heat transfer, thus make indoor keep proper temperature ability. Insulation - in building external wall, roof, for example, in the summer isolation solar heat and the influence of the indoor and outdoor temperature, so as to make its surface temperature keep proper temperature ability. Heat preservation performance usually use heat transfer coefficient values or heat transfer resistance to evaluate, heat insulation performance usually use summer outdoor calculated temperature conditions (that is, hot weather) inside palisade structure to evaluate the highest surface temperature. (the same conditions them table temperature below...) What is the coefficient of thermal conductivity, thermal conductivity refers to the steady heat transfer conditions, 1 m thick materials, on both sides of the surface temperature for 1 degrees (K, ℃), in 1 hour, through the 1 square meters area transfer of heat.

The unit is tile / (M • degree) [W/M • K, available K ℃ instead of]

Coefficient of thermal conductivity and material composition structure, density, moisture content, temperature, etc factors. Amorphous structure, less dense materials, small coefficient of thermal conductivity. The moisture content of material, temperature is low, small coefficient of thermal conductivity. Usually the coefficient of thermal conductivity low material called insulation materials, and the coefficient of thermal conductivity in 0.05 watts / (m • degree) the following material called efficient thermal insulation material.

What is the heat transfer coefficient, heat transfer coefficient K value, it is to point to in the steady heat transfer conditions, palisade structure on both sides of the air temperature for 1 degrees (K, ℃), 1 hours through 1 square meters area transfer quantity of heat, the unit tile / (square meters, degree) [W/M2 • K), K available ℃ instead of]

What is the heat resistance, heat transfer resistance R. Heat transfer coefficient K is reciprocal. Namely R. = 1 / K, the unit is square metre, degree) / tile [M2 • K) / W]. Palisade structure of heat transfer coefficient K value is small, or heat transfer resistance Ro value, the greater the heat preservation performance is good.

Thermal insulation material is part of the insulation, the coefficient of thermal conductivity is less than 0.174 W / (M • K) material called insulation material.

Adiabatic material performance high and low, is by the adiabatic material itself, the thermal conductivity of the size of the decision, the smaller the coefficient of thermal conductivity, the thermal insulation performance is better.

To ensure that building insulation engineering energy saving effect, be sure to selection of high quality insulation material. The coefficient of thermal conductivity is less than or equal to 0.05 W / (M • K) are called efficient thermal insulation material.

The range of materials: space reflection coating, flexible rubber sponge insulation materials, polyethylene foam, hardness polyurethane foam plastics, polystyrene foam plastic, glass cotton and products, rock wool slag cotton and products.