One, introductive

System of the heat preservation outside the wall outside the building is project of a system, involve material sex, capable person the many link such as basic level of qualitative, wall, environment, craft, quality management, design, application, construction, through old progress and development, industry still cares building heat preservation generally the quality problem of energy-saving project, the many heat preservation that has made a wall is energy-saving project, whether the test that withstands time, 10 years, 25 years, 50 years? With respect to current practice and project quality current situation, if continue, quality problem will be increasing, rise in price in raw material especially, product sale and project contract below the market background that the price goes low, we should face reality, scientific and reasonable select material, with material, improve technology, normative construction, improve project quality, undertake to heat-insulation layer effective interface is handled (every make the same score rice to need 0.8-1.0 only yuan) , it is a kind of very scientific and practical method, but substantially resource conservation, reduce project cost, improve project quality.

2, project of the heat preservation outside the wall outside the building is main problem

1. The responsibility of problem of quality of heat preservation system is divisional

(Heat proof quality of 1) heat preservation

Heat preservation lies between thermal efficiency to depend on the ply of the heat preservation heat proof quality of insulation material and heat-insulation layer, if amount to not 50% or 65% , basically be the problem on insulation material.

(2) air strike, fall off, felt undesirable or cannot long and firm

Basically be the organic material ageing in mortar, mortar function cannot be developed normally, or the interfacial processing of heat-insulation layer is undeserved, construction was not done by regulations wait for a problem.

(3) crackle, interstitial

Material of mortar Central Plains is used undeserved, the recipe is unreasonable, protect water to move wet function force to lose, mortar combats the problem with drying shrinkage poor sex.

2. The stability of heat preservation system reachs service life issue

The stability of heat-insulation layer of the wall outside the building should have a process, the author thinks, stability of its initial stage, the cold hot climate that needs a nature at least circulates (a year of) , refrigerant in the winter, summer insolate, snow of rain of hardships of a journey or of one's life, this is heat-insulation layer ceaseless acclimatization climate changes, undergo the test of environmental climate callosity, after through natural cold steam awaits naturally to circulate, heat preservation system still can have a few change.
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