Comparison of external wall insulation steel wire mesh and alkali-resistant glass fiber mesh cloth. In the construction process of the external wall insulation project, whether it is steel wire mesh or alkali-resistant glass fiber mesh cloth, they all play the role of assisting the crack resistance and impact resistance of the plastering layer; in the overall construction, we cannot rely on them to To bear the load outside the insulation layer, their function should return to the role point of assisting the crack resistance and impact resistance of the plastering layer.
The following is a brief comparison of the advantages and disadvantages of steel wire mesh and alkali-resistant glass fiber mesh as follows:
1. The three major functions of alkali-resistant glass fiber mesh in the external wall insulation project
A. Alkali-resistant self-extinguishing function - the material itself has good alkali resistance to high-alkaline building materials such as cement, and is flame-retardant and self-extinguishing.
B. Long-term anti-corrosion function-effectively reflected in the fact that the alkali-resistant glass fiber mesh cloth will not be damaged after being buried underground for 100 years
C. High flexibility, lightweight, and easy construction functions - specifically reflected in the construction of detailed structures such as yin and yang angles, local shapes, etc., can be constructed at will according to various angle changes, there is no abnormal construction phenomenon, and there is no need to do expansion joints.
2. Description of the use of steel mesh in external wall insulation projects
A. The cold bridge and the thermal bridge do not match the wall - it is necessary to make an expansion joint during the construction of each floor. If the expansion joint is not handled properly, water seepage will occur in this part of the building, and the project has a greater potential hazard
B. High hardness and heavy weight. Normal construction cannot be realized in the construction of yin and yang corners, small shapes, and other parts-the difficulty of high hardness and inconvenient operability will not be wordy here. Now we will focus on the analysis of heavy weight and the thickness of the plastering of this system itself In addition to the weight of the steel mesh itself, if the weight of the exterior wall tiles is added, it has far exceeded the alkali-resistant fiberglass mesh in terms of weight.
C. Weak corrosion resistance - over the years, due to the characteristics of metal materials, it will rust and break when exposed to natural conditions such as water molecules and wind and sun, and lose the crack resistance and crack resistance of the external wall insulation system. Due to the impact resistance, a large area of the wall falls off, causing immeasurable serious consequences and huge economic losses.
