The service life of heat preservation system basically depends on the material sex of all sorts of material itself and service life cycle and construction craft, system of the heat preservation outside the wall is outer wall surface outside, thin plasterer is above heat-insulation layer, environmental climate is complex and changeful, difference in temperature can amount to nearly 100 ℃ , corrode of dip of radiate of sharp ultraviolet ray, sun, acid rain, blast, earthquake, and building construction produces change, foundation to sink etc, will be affected and harm the service life of heat-insulation layer.

3, the importance of interfacial processing and felt

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