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屋顶防水层局部破坏如何修复?

 文章来源:http://www.jnldfs.com/ 发布时间:2021-12-11   

(一)首先要调查原屋面状况
(1) First, investigate the condition of the original roof
1、了解所修屋面系统的构造特征及原防水层材料的特点。
1. Understand the structural characteristics of the repaired roof system and the characteristics of the original waterproof layer materials.
2、观察屋顶基层状况,如有无开裂、屋面板错位等情况。
2. Observe the condition of roof base course, such as cracking, roof slab dislocation, etc.
3、了解旧防水层的损坏程度,使用探测仪器确定渗漏点,根据检测结果,进行量化评估,并以此为下一步进行渗漏治理的依据。
3. Understand the damage degree of the old waterproof layer, use the detection instrument to determine the leakage point, and conduct quantitative evaluation according to the detection results, which can be used as the basis for leakage treatment in the next step.
4、对于细部构造进行认真调研,对天窗、烟囱、泛水、阴阳角、落水口、女儿墙等部位进行仔细检查,记录其渗漏状况。
4. Carefully investigate the detailed structure, carefully inspect the skylight, chimney, flashing, internal and external corners, water outlet, parapet and other parts, and record the leakage.
(二)其次对渗漏情况进行综合分析在现场调查的基础上,对所涉及的问题进行认真分析,确定维修范围及具体治理措施。这一步骤包括:
(2) Secondly, the leakage situation is comprehensively analyzed. On the basis of on-site investigation, the problems involved are carefully analyzed to determine the maintenance scope and specific treatment measures. This step includes:
1.渗漏水治理方式根据检测结果来确定是局部修补还是全部翻修,修补范围的大小,以及采取哪种施工方法。
1. The treatment method of leakage water shall be determined according to the test results, whether to repair locally or completely, the size of the repair scope, and which construction method to adopt.
2.对防水层耐久性的要求如何,考虑治理维修用防水材料的性能指标能否满足要求。
2. What are the requirements for the durability of the waterproof layer, and whether the performance index of the waterproof material for treatment and maintenance can meet the requirements.
3.若基层出现裂缝、错动,应采取哪样的增强方式。
3. What kind of reinforcement method should be adopted in case of cracks and dislocation in the base course.
4.对施工环境的考虑,主要是施工材料的运输、储放等。由于许多防水材料及与之配套的胶粘剂、溶剂等属于易燃物,要特别注意消防措施。
4. The consideration of construction environment is mainly the transportation and storage of construction materials. Since many waterproof materials and their supporting adhesives and solvents are inflammables, special attention should be paid to fire protection measures.
5.渗漏水治理的费用。一般情况下,由于原屋面防水层与治理维修所用材料及其性能和施工方法的不同,加上工程量的增加,使得治理渗漏的费用高于新建工程的费用。因此,要将治理修工程的费用与保证年限、耐久性以及使用功能等几个方面进行综合评估,以确定费用开支。
5. Cost of leakage water treatment. Generally, due to the difference between the original roof waterproof layer and the materials used for treatment and maintenance, their properties and construction methods, and the increase of quantities, the cost of treating leakage is higher than that of new projects. Therefore, the cost of the treatment and repair project should be comprehensively evaluated in terms of guarantee period, durability and use function, so as to determine the cost.
(三)后要确定治理维修方案 通过上述调研分析后,制定屋面渗漏水治理的详细方案,包括施工计划和维修治理方案。治理维修要根据建筑物的等级,选用与原防水层材性相适应的材料和施工工艺,需注意以下几点:
(3) After that, the treatment and maintenance scheme shall be determined. After the above investigation and analysis, the detailed scheme for roof leakage treatment shall be formulated, including construction plan and maintenance treatment scheme. According to the grade of the building, the materials and construction technology suitable for the material properties of the original waterproof layer shall be selected for treatment and maintenance, and the following points shall be paid attention to:
1.要采取工艺技术简单,便于操作的施工方法,尽量减少设备和机具。
1. The construction method with simple technology and easy operation shall be adopted to minimize equipment and machines.
2.要施工方便、保证质量。
2. The construction shall be convenient and the quality shall be guaranteed.
3.选用的修补治理材料要与原防水层材料相容,不但要使二者粘合牢固,而且不能发生腐蚀。
3. The selected repair and treatment materials shall be compatible with the original waterproof layer materials, which shall not only make them firmly bonded, but also prevent corrosion.
4.要注意屋面坡度的选择和防水层收头的处理。
4. Pay attention to the selection of roof slope and the treatment of waterproof layer end.
5.在屋面基层较为复杂的条件下,要尽量采用随意性强的材料(如涂料、无定型密封材料等要注意屋面坡度的选择和防水层收头的处理。
5. Under the complex conditions of roof base, materials with strong randomness (such as coatings, amorphous sealing materials, etc.) shall be used as much as possible, and attention shall be paid to the selection of roof slope and the treatment of waterproof layer end.
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