For a long time, the unreasonable low price bidding system in the engineering field has led to vicious competition, cutting corners, and low quality becoming a norm. Bad money drove out good money, and the moral integrity system almost collapsed. I hope the government functional departments can revise the "Unreasonable Bidding Law for Construction Projects" as soon as possible, change the positioning of the bidding market, and form good game rules through top-level design, so that stakeholders can obtain a reasonable profit bottom line, and change the simple price positioning to comprehensive. Positioning, especially quality positioning, enables companies and hardworking individuals to survive in the market;

2. The current "Building Law" should also be revised as soon as possible to give architects the right to lifelong responsibility, so that architects can consider the overall quality and quality of building projects, and then specify reasonable and excellent new technologies and techniques. New materials ensure smooth project progress by comparing various options. The overall quality change cannot be determined by the architect, and everything is decided by the client or the construction unit.

3. Relevant departments and institutions should conduct overall performance research on external wall insulation materials, and determine the combustion performance and combustion limit level of external wall insulation materials based on the results of window fire tests, rather than simply determining the fire resistance performance of external wall insulation materials. The insulation system is based on the combustion performance level of the insulation core material, which meets the strict requirements of external wall insulation materials for important personnel intensive public buildings and super high-rise buildings. This is not contradictory. Usually, such buildings can withstand relatively high costs, such as dry hanging, insulation, decoration, and other integrated systems. However, in residential buildings with an area of less than 100 meters, B1 grade high-performance and cost-effective organic insulation boards can simplify the system, improve quality, and meet fire safety requirements.

4. Inorganic exterior wall insulation materials should pay attention to the contradiction between thermal performance, strength, and water absorption performance.