The external walls are more directly affected by various external forces and are more susceptible to damage and crack formation caused by temperature difference stress. The presence of structural cold (hot) bridges can easily cause excessive local temperature differences or even condensation, leading to immersion or freeze-thaw cycles. When the structural strength of rock wool composite board is small, the size of foam will shrink at low temperature or expand at high temperature due to the change of gas pressure in the closed hole. The greater the relative deformation (i.e. size change rate), the higher the probability of the waterproof insulation layer of the material breaking or cracking.

The external wall insulation board system should be placed within 2 meters of the outdoor ground, and the plaster layer should be heated with galvanized welded steel wire mesh to improve the anti-collision performance. Special rock wool board for exterior walls is mainly used for the external insulation system of thin plastered exterior walls. It has the advantages of high compressive and tensile strength, low water absorption and moisture absorption, good dimensional stability, no thermal expansion and contraction, and aging resistance. Equipment, insulation nails, and pipelines can be coated with appropriate anti-corrosion and insulation coatings. In addition, there should be no leakage. This can achieve better results. The working environment and conditions for the construction of the exterior wall integrated panel system should comply with the requirements of relevant standards and construction processes. SK insulation board system engineering shall not be constructed outdoors in wind, rain, or snow weather of level 5 or above.

The ecological balance, environmental protection, and energy conservation in residential building design are not isolated or contradictory, but rather interdependent and interconnected. Human beings can independently construct comfortable building interiors, but artificial comfort often relies on high energy consuming facilities such as lighting, air conditioning, and ventilation, and the improvement of comfort often requires an increase in energy consumption as a prerequisite. This development model has brought about the current environmental and energy crisis, which in turn threatens the survival, development, and safety of human beings.

Passive low-energy buildings have strict design standards, requiring the use of natural heat from the building to achieve an indoor temperature of 20 ℃ to 26 ℃ without heating facilities or with minimal energy consumption. This means that the indoor temperature can meet the standard without heating; The relative humidity is between 40% and 60%, ensuring that the interior walls do not condense or mold, and that there is no condensation on the surface of the windows. Such strict design standards effectively solve the contradiction between living costs, energy conservation and emission reduction, and living comfort.