Construction technology of a passive ultra-low energy building external wall external thermal insulation system

Abstract

The invention discloses a construction technology of a passive-type ultralow-energy-consumption building external wall external heat insulation system. The construction technology comprises the stepsthat a needed heat insulation board is divided into two parts based on thickness, and thus the heat insulation board is constituted by a first-layer heat insulation board body and a second-layer heatinsulation board body; and during construction, a building heat insulation and structure integration technology is adopted, a pre-arranged reinforcement fabric and the first-layer heat insulation board body are poured into a whole, and then the other layer of heat insulation board body is bonded to the whole through an external bonding method. By adjusting heat insulation layers into double layers, the connection modes of all the heat insulation layers and a protective layer as well as all the heat insulation layers and a main body structure adopt different technologies to adjust the materialproperty matchability of all construction layers, and the problems that a heat insulation system cracks, falls off and is the same as a building in life can be solved effectively.

Description

technical field [0001] The invention belongs to the field of building heat preservation materials, in particular to a construction process of a passive ultra-low energy consumption building exterior wall heat preservation system. Background technique [0002] The ultra-low energy building achieves a comfortable indoor environment with constant temperature, constant humidity, constant oxygen, constant cleanliness, and constant quietness by maximizing the thermal insulation performance and airtightness of the building envelope and combining with the high-efficiency heat recovery fresh air system. The demand for heating and air conditioning is reduced to the minimum, almost no air conditioning and heating are needed, and the room temperature is maintained at the most suitable temperature for the human body between 18°C ​​and 24°C throughout the year, which can save 95% of energy and greatly reduce the environmental load. Climate change goals will be achieved better and faster. ...

AI Technical Summary

Problems solved by technology

[0008] However, these methods are only suitable for thinner insulation boards

like figure 1 As shown, it is a schematic diagram of the construction process of the existing cast-in-place concrete composite thermal insulation system with thermal insulation composite panels. It can be seen from this that the existing integrated technology generally binds the main structural steel bars first, and then arranges the thermal insulation panels. The thickness is thicker than the traditional thickness, generally up to 300mm, which is equivalent to a "light masonry wall", and the integrity is very good, which is not conducive to the adjustment of the distance between the inner and outer formwork cavities

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