1. Construction Considerations
1.1 Construction arrangement under high temperature weather
It is very important to reasonably arrange the working time and working surface when carrying out construction under high temperature weather. You can choose to carry out construction in the time period of higher temperature every day, avoiding the construction of the work surface in direct sunlight, so as to avoid reducing the development time of polymer mortar due to the high temperature of the grass-roots level and the environment, which will affect the constructability. In addition, special attention should be paid to the construction safety of workers to avoid heat stroke or dizziness caused by high temperature.
1.2 Weather forecast record for summer construction
During summer construction, weather forecast should be recorded daily and work time should be reasonably arranged. Following the principle that the completed working surface should not be washed away by rainwater within 24 hours can effectively prevent the construction surface from being damaged by rainwater.
1.3 Construction treatment after continuous rainfall
If continuous rainfall is encountered, after the rain stops, it should be ensured that the wall surface is completely dry before proceeding to the next step of the construction process. This can avoid affecting the construction quality due to wet wall surface.
1.4 Useful life of polymer mortar and emulsion products
Polymer mortar products and emulsion products should be used within the specified shelf life, expired products are strictly prohibited. This is an important guarantee to ensure construction quality and safety.
2. Storage Precautions
2.1 Storage of polymer mortar products
2.1.1 Indoor storage requirements
When polymer mortar products are stored indoors, it should be ensured that there will be no water leakage on the roof due to construction on the upper floors or rainy weather; and that the door and window openings on the external wall will not be exposed to driving rain to the interior due to thunderstorms. Materials should also be stacked at a certain height (>500px) above the ground.
2.1.2 Outdoor storage requirements
If outdoor storage is required, the products should be stacked in a place with high terrain and a yard tray should be placed at the bottom of the products to ensure that the height of the lowest product from the ground is at least 500px, and covered with a raincloth, to avoid the material being damped due to the ground not being dry for a long period of time after the rainfall.
2.2 Storage of Glass Fiber Mesh Cloth
2.2.1 Indoor storage
Fiberglass mesh cloth should be stored indoors to avoid sunlight and rain.
2.2.2 Storage method
Each roll of glass fiber mesh should be placed vertically on the ground, not stacked on each other.
2.3 Storage of molded polystyrene board
2.3.1 Indoor storage
If site conditions permit, store the molded polystyrene boards indoors as far as possible, and take fire prevention measures around the storage room, such as making warning signs prohibiting fire and smoke and placing qualified fire extinguishers.
2.3.2 Outdoor storage
When stored outdoors, they should be neatly arranged, away from fire sources, and heavy weights should be used to press the top to avoid being blown away by gusts of wind. If the products cannot be used up in time, the remaining products should also be shaded to avoid prolonged exposure to sunlight.
2.4 Rock wool fireproof isolation belt or rock wool board storage
The rock wool fire barrier or rock wool board should be stored indoors as far as possible to ensure that there is no water on the ground around it. If outdoor storage is required, storage should be in accordance with the storage requirements for polymer mortar products.
2.5 Storage of Adhesives
Adhesives are usually stored in the form of barrels, note that in the rainy days construction workers should cover the barrel lid, so as not to rain into the barrel, affecting the quality of construction, while avoiding high temperature and sun exposure caused by emulsion failure.
2.6 Emulsion products and other auxiliary products storage
Emulsion products and other auxiliary products must be stored in accordance with the requirements of the product specification.
3. Precautions for construction and storage of exterior wall finishing products
3.1 Construction precautions
3.1.1 Avoid direct sunlight and high temperature construction.
During construction, direct sunlight and high temperature should be avoided as much as possible. For example, you can construct the west hill wall in the morning and the east hill wall in the afternoon to avoid the high temperature period at noon.
3.1.2 Shading
If it is impossible to avoid direct sunlight, shading treatment should be taken. For example, a protective net should be hung up when working with scaffolding, and a sunshade net of not less than 2 meters should be hung on the outside of the basket when working with hanging baskets.
3.1.3 Construction after continuous rainfall
After continuous rainfall, it should be ensured that the water content of grass-roots level is ≤10% and the ambient humidity is <85% before proceeding to the construction of the next process.
3.1.4 Daily weather forecast record
During summer construction, daily record of weather forecast should be made, and work time should be reasonably arranged to ensure that the completed work surface shall not be washed away by rain within 24 hours.
3.1.5 Mixing before product use
Due to the high ambient temperature in summer, when the product is opened and used, the surface product may be delaminated, so make sure to mix it well with a clean electric mixer before use.
3.1.6 Shelf life
The product should be used within the stipulated shelf life, expired products are strictly prohibited.
3.2 Storage Precautions
3.2.1 Classification and arrangement of products
The products should be stored according to the batch classification, and should not be placed arbitrarily.
3.2.2 Indoor storage
Store the product indoors as much as possible, avoiding direct sunlight for a long time.
3.2.3 Storage Height Restrictions
Do not store the products higher than 4 layers.
4. Friendly Tips
4.1 Effect of high temperature, high humidity and rainy weather
Summer is mostly characterized by high temperature, high humidity and rainy weather, and these weather will have extremely unfavorable effects on the construction safety of workers. Therefore, special attention should be paid to the health of workers and the safety of electricity of construction tools during construction in this period.
4.2 Workers’ Health and Electricity Safety of Construction Tools
During construction in hot weather, workers’ work and rest time should be reasonably arranged to ensure workers’ health. In addition, special attention should be paid to the safety of electricity used in construction tools to avoid accidents caused by improper use of electricity.
