Building exterior wall external thermal insulation system waterproof and drainage construction method

A construction method and technology for building exterior walls, applied in building thermal insulation materials, thermal insulation, building components, etc., can solve problems such as leakage, thermal insulation layer falling off, and external wall cracking.

Inactive Publication Date: 2014-12-03
ZHONGQI JIAOJIAN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the external thermal insulation system of the building exterior wall that the water pressure of the thermal insulation layer cannot be discharged in time to cause the external wall to crack, leak, and eve

Method used

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  • Building exterior wall external thermal insulation system waterproof and drainage construction method
  • Building exterior wall external thermal insulation system waterproof and drainage construction method

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Experimental program
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Embodiment 1

[0096] The construction method for waterproofing and drainage of the external thermal insulation system of the building exterior wall provided in this embodiment includes the following steps:

[0097] (1) Wall base treatment

[0098] 1) Blocking of pull bolt holes

[0099] The inner 2 / 3 depth of the pull bolt hole in the wall is sealed with asphalt mortar, and the outer 1 / 3 depth is sealed with polyurethane foam. The wall surface is brushed with polyurethane waterproof paint 3 times within a radius of 250mm centered on the bolt hole, and the thickness is not less than 1.5mm. mm;

[0100] 2) Basic treatment

[0101] Use a chopping ax to chop out fine lines on the drum mold of the wall, and place the unsatisfactory mortar joints of the masonry in advance, and clean the mortar, oil, dust and sundries on the wall to make the wall clean and dry;

[0102] (2) Leveling the base and setting up drainage channels

[0103] 1) Grassroots leveling

[0104] The base layer is leveled wi...

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Abstract

The invention discloses a building exterior wall external thermal insulation system waterproof and drainage construction method. The building exterior wall external thermal insulation system waterproof and drainage construction method includes following steps: processing a wall foundation layer; leveling the wall foundation layer; arranging a drainage channel; pasting a thermal insulation board; smearing a polymer anti-crack mortar protection layer; processing details of waterproof nodes; performing external wall surface decoration and a water pouring experiment. The building exterior wall external thermal insulation system waterproof and drainage construction method overcomes the problems that an external wall crazes, leaks and the like, caused by water pressure generated due to water which enters a thermal insulation layer of a building exterior wall external thermal insulation system and can not be discharged in time. The building exterior wall external thermal insulation system waterproof and drainage construction method is applied into a plurality of projects, and thereby effectively improves cracking resistance and seepage prevention performance of the building exterior wall external thermal insulation system, prevents cracks and leakage of the external wall, eliminates potential safety hazards caused by the accident that the thermal insulation board falls off a high position, reduces user complaint and claim rate, reduces maintenance cost, reduces engineering use cost, and obtains good economic benefits and social benefits.

Description

technical field [0001] The invention relates to a waterproof and drainage construction method for an external thermal insulation system of a building exterior wall, belonging to the technical field of building construction. Background technique [0002] The external thermal insulation technology of building exterior walls is currently the energy-saving technology with the highest energy-saving efficiency and the most widely used. However, for many years, cracking and leakage of external walls have been common in the application of this system, which has become a common quality problem that cannot be cured for a long time and occurs repeatedly. The energy-saving effect is reduced after the insulation layer enters the water, and because the water cannot be discharged in time, a large amount of water in the insulation layer forms a large side pressure, which increases the probability of water penetration into the room, and the insulation board increases the risk of falling off ...

Claims

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Application Information

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IPC IPC(8): E04B1/76E04B1/64
Inventor 王法精张雪伟张甡郑建国马庆元
Owner ZHONGQI JIAOJIAN GRP
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