Outer-wall heat insulating material and outer wall heat insulating method

Abstract

The invention discloses an outer-wall heat insulating material and an outer-wall heat insulating method; the outer-wall heat insulating material comprises a heat insulating layer which consists of heat insulating material and can preserve and insulate heat, a heat discoloring layer which consists of heat discoloring coating and can turn light or dark correspondingly according to the rising and decreasing of temperature, an air buffer which serves as a gas space, and a transparent temperature-sensing ventilated film which can close or ventilate according to the rising and decreasing of temperature. The technical proposal of the invention can lead indoor atmosphere to be warm in winter and cool in summer, save large amount of energy, simultaneously can be applied to outer-wall decoration and has low cost.

Description

technical field [0001] The invention relates to an external wall thermal insulation technology of buildings, in particular to an external wall thermal insulation material and an external wall thermal insulation method. Background technique [0002] External wall insulation is widely used in foreign buildings, and has been popularized in China in recent years, especially in high-rise buildings, most of which have begun to use external wall insulation. External wall insulation can effectively block the conduction of heat energy, and the thermal insulation effect is very obvious, which can save a lot of heating costs in winter, and is more environmentally friendly than other heating methods. At present, the widely used external wall insulation materials include polystyrene foam and extruded polystyrene rigid foam, rock wool board and polyurethane foam. Polyurethane rigid foam exterior wall insulation material has excellent characteristics such as high strength, hydrolysis resi...

AI Technical Summary

Problems solved by technology

However, the existing external wall insulation materials usually only have the effect of heat preservation, and cannot absorb or reflect solar energy according to changes in ambient temperature and light.

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