Anti-condensation outer insulative wall body structure

Abstract

The invention discloses an anti-condensation outer insulative wall body structure and belongs to the technical field of wall body structures. The structure is characterized in that an inside air layer (9) and a water-steam-preventing layer (8) are sequentially arranged between an inner decorative plate (10) and a base layer load-bearing wall body (7); inner layer through holes (11) are arranged both on the upper portion and the lower portion of the inner decorative plate (10), and the inner layer through hole on the upper portion is connected with a wind-returning opening (14) are to ensure that negative pressure is formed by the inside air layer (9), and that cross-ventilation is formed between the inside air layer (9) and an interior of a room; a water diffusion layer (4), a water-proof layer (5) and an outside air layer (2) are sequentially arranged between an inflaming-retarding-type insulative material layer (5) and an outer decorative plate (1); and outer layer through holes (13) for the outside air layer (2) and the outside of a room to be communicated and form cross ventilation are arranged both above and below the outer decorative plate (1). The anti-condensation outer insulative wall body structure is obvious in level and structure, has good insulative, energy-saving, moisture-permeable and damp-proof performance, and can radically overcome critical defects that the inside of a building wall body is easy to be affected with damp, condensate, mildewed and airtight.

Description

Technical field [0001] The invention relates to an external thermal insulation wall structure, in particular to an external thermal insulation wall structure which is not easy to be affected by moisture and condensation, and has good air permeability. Background technique [0002] In the 21st century, energy shortage still restricts the sustainable development of society. In order to complete the "Eleventh Five-Year Plan" and the 2015 long-term plan, the use of thermal insulation materials in buildings is the most effective way to save energy, and its effect is also the most obviously. At present, the external thermal insulation of external walls is a measure vigorously promoted by the Ministry of Construction to improve the thermal insulation of building envelope structures. However, in areas with high humidity and much rain in the south, especially in buildings that use air conditioners in winter, in order to save energy, there are generally no ventilation settings on the...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the above problems and provide a new type of external thermal insulation structure wall, which fundamentally overcomes the fatal defects of moisture condensati

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