Metal-carved insulation board occupies a large market in the new exterior wall insulation materials, and with the improvement of the national wall insulation and energy-saving, the application of metal-carved insulation boards will also be more and more, we often say the external wall The role of the insulation board, but usually forget the requirements for the wall in the construction. The construction success or failure of the external wall insulation board has a great relationship with the wall condition. Which standards do you need to meet?

Before the metal engraved board is constructed, the base layer of the wall should be dry, solid and flat. The surface should be clean and free from oil and dirt. The surface flatness is not more than 4 mm. The raised, hollow and loose parts should be removed and leveled with 1:3 cement mortar; the flatness should be ±2 mm. For the base layer with excessive surface or excessive water absorption, the bonding test should be done first; in the external thermal insulation system, the adhesive paste is applied to the insulation board, and after 5 minutes, the insulation board is removed and reattached to the original position, if still It is qualified to pass the hand, which is responsible for indicating that the base layer is too dry or the water absorption is too high (ie, the viscosity of the test mortar).

The wall should be cleaned before installing the metal-carved insulation board, so that there is no oil, paint, weathering, dirt, etc. This will extend the life of the exterior insulation board. Rinse with high pressure water before installation if necessary.

The energy-saving material of the external wall insulation board is a thermal insulation material. Insulation material refers to a material or material composite used in building envelopes or thermal equipment, impedance heat transfer, including insulation materials and cold insulation materials. Do you know anything about the meaning of the exterior insulation board?

Insulation material meaning

On the one hand, it is to meet the thermal environment of building space or thermal equipment.

The other is to save energy. Such as: perlite insulation board, A-class fire insulation board With the increasing intensity of energy in the world, the significance of insulation materials in energy conservation has become increasingly prominent. In the case of air conditioners for general residential heating, energy saving can be 50% to 80% on the existing basis by using insulation materials. Experts in façade insulation boards have proved from Japan's energy-saving practice that each ton of insulation material can save 3 tons/year of standard coal, and its energy-saving benefit is 10 times of material production cost. Some countries regard thermal insulation as the five “energy” after coal, oil, natural gas and nuclear energy.

The six basic requirements of the standard for exterior wall insulation boards remind architects and real estate developers of the issues that should be noted in architectural design. Correct understanding and use of normative standards; reuse of plasticity of insulation materials; understanding of external insulation systems is a system. It is by no means a patchwork of simple materials; it is designed to strengthen the wind pressure; pay attention to the structure of the overturning; pay attention to the water vapor permeability of the external insulation system.