How to do the exterior insulation construction in winter?

First, temperature changes

Always pay attention to the weather forecast and control the temperature changes. If the weather is cold and rainy and snowy, the construction of the external wall insulation board should be suspended immediately. Moreover, it is necessary to ensure that the temperature of the construction is not less than 5 °C, otherwise not only the change of the curing time will occur, but also the quality of the product will be destroyed after being frozen, thereby showing cracks and water drop, which seriously affects the quality of the whole system.

Second, the external wall insulation board external wall insulation construction

The external wall insulation construction stage should pay attention to:

1. The water-cement ratio and the rubber-to-ash ratio should be used within the scope of the rule. Do not stir the mixture too thinly, otherwise the solidification time will be lengthened.

2. The mesh cloth should be immersed in water to avoid freezing of the mesh cloth.

3. When the surface is being applied, try to select the construction at noon time to reduce the impact of temperature fluctuation.

4. Due to the lower temperature, the foaming and curing time of the styrofoam is prolonged. Therefore, the time for grinding the slats during construction should be extended. It is forbidden to polish the styrofoam before it is cured.

Note: If the construction project is completed within the year, the construction will be carried out according to the construction of the north facade and the gable, and finally the construction of the south facade (relatively long in winter).

Third, external insulation

1. External wall insulation board insulation material storage:

All liquid materials or paste materials (such as: two-component plastering mortar, plaster, mortar, real stone paint, lacquer, etc.), storage temperature should not be lower than 5 ° C, should Place indoors and cover the temperature of storage such as cotton felt. All powder should be stored in a dry place.

2. Bonding mortar, protective mortar and various supporting facilities of the company are strictly prohibited to add any antifreeze, early strength agent and other auxiliary. The anti-slurry agent and the early strength agent only act on the hardening of the cement, and have no effect on the film formation of the polymer.

3. Due to winter, many construction sites have to be shut down. Dealers should do a good job to prevent excessive surplus. The storage environment of the construction site is very unfavorable for external insulation.