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  • 外墙保温工程在雨季施工时应注意的事项
  • 本站编辑:杭州鸿森门业有限公司发布日期:2019-03-14 21:53 浏览次数:
外墙保温工程在雨季施工时应注意的事项
一、保温材料的防护措施:
1、模塑聚苯板存储:若工地条件允许的情况下,请将保温板储存至室内,或集中堆放建筑物背风向,采用遮阳网覆盖,并用重物压紧,避免大风将保温板吹散,造成不必要的经济损失。
2、网格布的存储:应贮存在干燥通风的房屋内,使其保持良好的施工性。
3、聚合物砂浆存储:聚合物砂浆储存一定要注意防水、防潮。
(1)室内贮存:在工地条件允许,且现有聚合物砂浆类产品不是很多的情况下,可以将材料贮存至室内,为防止雨水天气带来空气湿度的增加对材料的影响。应将室内窗口进行封堵,防止潲雨。材料堆放在离地30cm处,并用雨布覆盖。防止因雨水天气造成楼上积水,渗漏到贮存材料上,造成聚合物砂浆硬化。
(2)室外储存:材料堆放,选择地势高的地方,周围排水通畅,不易积水,且离地30cm以上。堆放之前,在料台上铺设一层雨布防潮。堆放完毕,用完整雨布覆盖在上边,用绳子绑扎好,用重物将雨布四周压紧。注意天气变化,等到晴天的时候,打开雨布进行晾晒,将雨布水分蒸发,避免水汽产生水珠,滴落聚合物砂浆上,造成硬化。
4、饰面材料和胶料贮存:放置在背阴处,且在施工完成后进行检查,注意桶盖是否盖好,避免雨水进入桶内,造成后续施工质量问题。
二、施工机具注意事项:
外墙保温施工主要采用施工吊笼,当雨天来临时,禁止施工。并切断吊笼电源,和覆盖好电机。避免下雨进水造成短路,发生危险。雨后复工,要派专业人员对吊笼进行检查,防止出现吊笼故障和危险。
三、保温施工注意事项:
(1)密切关注天气预报,提前预警,合理安排施工时间。
(2)大风天气:遇有六级以上强风,不得进行高处作业。加强对工人的安全教育,并对工人安全带、安全帽、安全绳索的使用进行严格检查。
(3)雨天禁止施工。根据当天具体天气情况,合理安排施工工序。例:防止出现防护面层刚施工完成,强度不够,被雨水冲刷后,造成表面平整度、抹灰厚度不达标而返工的情况出现。既费时费工又费料。
四、饰面施工注意事项:
(1)遵循施工完成面,在24小时之内不会被雨水冲刷。
(2)根据风力大小,尽量不要进行喷涂类材料施工。以免造成喷涂不均匀,污染其他完成面等现象。
五、安全注意事项:
1、对施工现场所有工作人员加强安全教育培训工作,尤其是细节方面容易忽视的地方,让安全施工深入每一个工人心中。
2、安全检查必须到位。对建筑物主体、脚手架、吊篮、施工用电进行经常性检查,第一时间发现问题并及时排除,对破损处及时修复,把问题处理在萌芽状态。

Matters needing attention in construction of exterior wall insulation project in rainy season
Protective measures for thermal insulation materials:
1. Moulded polystyrene board storage: If site conditions permit, please store the insulation board indoors, or centralize the building in the direction of the leeward, cover it with shading net, and press it with heavy objects, so as to avoid the wind blowing the insulation board away, causing unnecessary economic losses.
2. Storage of mesh cloth: It should be stored in a dry and ventilated room to maintain good workability.
3. Polymer mortar storage: Polymer mortar storage must pay attention to waterproof, moisture-proof.
(1) Indoor storage: When site conditions permit and there are not many polymer mortar products available, materials can be stored indoors to prevent the impact of increased air humidity on materials caused by rainwater weather. The indoor windows should be blocked to prevent torrential rain. The material is stacked 30 cm away from the ground and covered with rain cloth. Prevent upstairs water accumulation caused by rainwater weather and leakage to storage materials, resulting in hardening of polymer mortar.
(2) Outdoor storage: material stacking, selection of high-lying areas, surrounding drainage smooth, not easy to accumulate water, and more than 30 cm away from the ground. Before stacking, lay a layer of rain cloth on the material table to prevent moisture. After stacking, cover it with a complete raincloth, tie it with rope, and press the Raincloth around with heavy objects. Pay attention to the weather changes. When it's sunny, open the Raincloth for drying, evaporate the moisture of the raincloth, avoid the water vapor to produce droplets, drop on the polymer mortar, causing hardening.
4. Decoration materials and rubber storage: placed in the shade of the back, and after the completion of the construction inspection, pay attention to whether the lid of the barrel is well covered, to avoid rainwater into the barrel, resulting in quality problems in subsequent construction.
2. Notices for Construction Machinery and Tools:
Construction hanging cage is mainly used in external wall insulation construction. When rainy day comes, construction is prohibited. And cut off the power supply of the suspension cage and cover the motor well. Avoid short circuit and danger caused by rain and water inflow. When resuming work after rain, professional personnel should be sent to inspect the suspension cage so as to prevent the occurrence of failure and danger of the suspension cage.
3. Notices for insulation construction:
(1) Pay close attention to weather forecast, give early warning and arrange construction time reasonably.
(2) Gale weather: If there is a strong wind above grade 6, no high-altitude operation is allowed. Safety education for workers should be strengthened, and the use of safety belts, safety hats and safety ropes should be strictly checked.
(3) Construction is prohibited in rainy days. According to the specific weather conditions of the day, the construction process should be arranged reasonably. Example: Prevent the appearance of protective surface layer just completed construction, the strength is not enough, after being washed by rainwater, resulting in surface smoothness, plastering thickness not up to the standard and rework. It's time-consuming, labor-consuming and material-consuming.
4. Attentions in decoration construction:
(1) Following the construction completion surface, it will not be washed by rainwater within 24 hours.
(2) According to the size of the wind, spraying materials should not be constructed as far as possible. In order to avoid uneven spraying and contamination of other finish surfaces and other phenomena.
V. Safety precautions:
1. Strengthen safety education and training for all workers on the construction site, especially in details which are easily overlooked, so that safety construction goes deep into every worker's mind.
2. Safety inspection must be in place. Regular checks are carried out on the main body of the building, scaffolding, hanging basket and construction power consumption. Problems are found and eliminated at the first time, damaged areas are repaired in time, and the problems are handled in the budding state.
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