A Construction Technology for Preventing Cracking of External Thermal Insulation Coating Surface
A construction technology and external thermal insulation technology, which is applied in the construction technology of high-rise exterior walls and the field of preventive external thermal insulation coating, can solve the problems of wasting financial and material resources, affecting the quality of wall insulation, and increasing construction costs, so as to improve the quality of thermal insulation and prevent and cracking, reducing construction costs
Inactive Publication Date: 2016-06-22
刘海宁 +2
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Problems solved by technology
For some multi-storey energy-saving buildings, after the completion of the project (especially the project started and completed in the same year) during the heating period, the humidity in the cavity formed by the external wall insulation layer and the adhesive layer and the insulation layer seriously exceeded the standard (〔△w〕>15% ), in the early spring of the second year after delivery, cracking and peeling occurred to varying degrees, requiring repeated repairs, which not only affected the insulation quality of the wall, but also wasted financial and material resources and increased construction costs
Method used
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Embodiment Construction
[0039] Examples such as Figure 1-4 As shown, a construction technique for preventing cracking of the external thermal insulation paint finish comprises the following steps:
[0040] A. Bottom control line
[0041] At the junction of the outdoor slope protection foundation 2 and the wall 1, stretch the horizontal control line around the building, which is the reference line for the construction of moisture-proof coils;
[0042] B. Polystyrene board insulation layer construction
[0043] Carry out insulation layer construction according to the basic sequence of popping doors and windows, vertical control lines, etc. → hanging datum line, sticking overturned mesh cloth → sticking polystyrene board → installing anchors → plastering mortar and laying mesh cloth;
[0044] In step B, the following processes are also included;
[0045] C. Keep the ventilation channel 5, install the suction and exhaust holes 6
[0046] 300mm below the window on the second floor of the building (th...
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The invention discloses a construction technique for preventing cracking of exterior heat-resisting paint finishes, which comprises the following steps: A. Bottom control line is played; horizontal control line is played along the perimeter of the building at the junction of the outdoor slope protection foundation and the wall, and the line is a moisture-proof coil The reference line of material construction; B, the construction of polystyrene board insulation layer; according to the pop-up doors and windows, vertical control lines, etc. → hang the reference line, stick the overturned mesh cloth → stick the polystyrene board → install the anchor → plaster the mortar and lay the pressure net The basic order of the grid cloth is to carry out the construction of the insulation layer; C. Leave the air passage, install the suction and exhaust holes; leave a 20mm wide air passage 300mm below the window on the second floor of the building, and install the air suction passage near the window. holes; a 20mm wide air passage is also left on the upper part of the window on the top floor, and an exhaust hole is arranged on the air passage vertically corresponding to the suction hole; the outside of the air passage is sealed with EPS board wedge-shaped slats; D. Outdoor slope protection foundation Paste the moisture-proof layer at the junction with the wall for moisture-proof treatment.
Description
technical field [0001] The invention relates to a construction technique for building high-rise exterior walls, in particular to a preventive external thermal insulation coating [0002] The invention relates to a cracking construction technology for material decoration, which belongs to the technical field of building construction. Background technique [0003] With the rapid development of building energy conservation, external wall thermal insulation technology has been widely used in the world, among which the earliest application time and the largest application area is the molded polystyrene board (EPS) thin plaster external wall thermal insulation system. The EPS external thermal insulation system came out in Germany 50 years ago and became popular in Europe and the United States. Our country has studied and applied this advanced technology for 20 years, and the number of engineering applications has continued to expand, and good results have been achieved. [0004] ...
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IPC IPC(8): E04F13/02
Inventor刘海宁臧毅李守海
Owner刘海宁