The quality of residential construction has always been the focus of owners, and roof waterproofing construction due to the high concealment, so roof leakage has become the most likely to occur in the construction of residential class quality problems. The article first analyzed the causes of building roof leakage, and then targeted a number of measures to address.
Building residential roof leakage causes
1, the quality of waterproofing materials deviation
The quality of waterproofing materials directly determines the quality of the building residential roof waterproofing effect. But in the building construction process, due to the influence of a variety of factors, resulting in some of the quality, performance of waterproofing materials used in residential construction, to the roof leakage laid a hidden danger. First, the construction materials market is not standardized, counterfeit and shoddy products exist in large numbers.
For a long time, the lack of effective supervision and management of China’s construction market, resulting in the market is full of a large number of substandard, counterfeit and shoddy construction materials, some procurement staff if their own discriminatory ability is not strong, it is easy to be influenced by the price factor, the purchase of substandard waterproofing materials. Second, the lack of professionalism of the procurement staff. In the purchase of waterproofing materials, not in accordance with the regulations require sales manufacturers to issue product certificates of conformity and quality inspection certificates, but the blind pursuit of low-priced products, resulting in poor quality materials into the construction site.
2, waterproof construction technology backward
Has been, many domestic residential construction enterprises are focused on the degree of architectural beauty, architectural stability, but the degree of attention to the roof waterproofing construction is seriously inadequate. In this case, construction companies do not arrange professional waterproofing construction team, but let the regular construction personnel for roof waterproofing construction. These construction personnel often do not have a high degree of mastery of waterproofing technology, coupled with the lack of effective supervision and management of the actual construction process, it is difficult to ensure the quality of waterproofing construction.
In addition, most of the current domestic building construction companies, are not equipped with professional waterproofing testing instruments, often after the building is put into use only to find that there are serious water leakage problems, bringing serious problems to the normal life of housing owners. In recent years, with the continuous improvement and development of the construction industry, in the waterproof construction technology optimization of capital investment has increased, but these new technologies are still in the experimental stage, did not play the role of waterproofing.
3, the lack of post-maintenance management
In fact, with the increase in the use of building residential years, building materials will appear in varying degrees of aging phenomenon, roofing waterproofing materials will also be in the wind and sun and other natural factors under the influence of wear and tear. By strengthening building maintenance and management, not only can the quality problems be found early, but also the corresponding repair measures can be taken in the shortest possible time to minimize the building losses.
But China’s housing management generally exists “heavy construction, light management” phenomenon, the construction unit after the completion of the project construction, the construction of residential post-maintenance and management is not timely follow-up, but also did not arrange for regular maintenance and management, resulting in some small building quality problems can not be found in time, missed the best period of repair and renovation and eventually lead to roof leakage.
Building residential roofing repair and renovation measures
1, the use of high-quality waterproofing materials, strict material selection mechanism
High-quality waterproofing materials are the key to ensure that the waterproofing performance of the building residential roofing. For construction companies, first of all, we must pay attention to the role of high-quality waterproofing materials in building waterproofing construction, to avoid the pursuit of low prices in the purchase of materials, ignoring the quality of waterproofing materials.
At the same time, strengthen the quality of personnel education, improve the level of professionalism, procurement staff on the one hand to enhance their own ability to distinguish between good and bad materials, authenticity, to prevent substandard, fake materials into the building site; on the other hand, when buying materials, manufacturers must be required to issue a complete material specification, quality assurance letters and product certificates of conformity, to maximize the way to ensure that the quality of materials do not have problems.
2, innovation roof design technology
Roof waterproofing construction as part of the building construction, must also be strictly in accordance with the standard construction process. First of all, according to the overall characteristics of the building, the development of detailed waterproofing design and planning, and in the planning drawings marked with detailed information, such as the slope of the roof, drainage pipe diameter, in order to make the roof rainwater can be smoothly discharged.
Second, improve the technology of the roof leveling layer. In the design process of the roof leveling layer, firstly, the slope should be found according to the 3% agency, and then the slope should be found on the structural layer with 1:6 cement slag. When the slope is found in the building, the direction of flowing water and the slope of flooding should be found, and the water outlet and the highest point should be straightened. In the process of pouring, rollers and ruler square rolls should be used so as to be able to better ensure the solidity of the roof and prevent the leakage of rainwater. Again, optimize the construction technology of roofing isolation layer.
First, in the grass-roots level coated with grass-roots treatment agent, to achieve uniform thin slip, after the treatment agent dry, in the paving coil; Second, in the process of coil waterproofing layer paving, must be from the level of the bottom elevation upward parallel roof ridge construction, can ensure that the coil in accordance with the aspect of water flow for effective lap. If the slope of the building roof is higher than 10%, coil should be paved perpendicular to the direction of the ridge; third, in the process of paving, coil long side lap to maintain 5 cm, the short side to maintain 7 cm, should not be pulled too tight, the vertical part should be knocked solid to prevent roof leaks.
3、Strengthen construction management maintenance
First, in the process of building roofing construction, to strengthen construction management to ensure the quality of waterproofing projects. Building construction units should actively establish a training system for waterproofing jobs and strengthen the training of construction technicians. Companies that are not qualified to carry out waterproofing projects are strictly prohibited from contracting work. To strengthen construction management, before construction is carried out to prepare the operating instructions and construction plans for waterproofing projects, in the specific process of construction, to carry out strict quality control of the main parts, to better protect the finished waterproofing products;.
Second, strengthen the maintenance management of building roofing construction. Relevant property departments to actively develop our roof maintenance procedures, maintenance management of scientific, so as to be able to extend the use of roofing cycle. After the house is put into use, the property-related departments should send special personnel to be responsible for regular cleaning and regular inspection to avoid the seriousness of the problem. Again, the roof should be maintained according to the season and weather. In summer, we should prevent rain, and in winter, we should clear the snow in time to prevent the freezing of the roof waterproof layer.
Conclusion
Building residential roof leakage has been a common quality problem in the use of China’s buildings, causing a great impact on people’s normal life and work order. Through analysis, the causes of roof leakage in residential buildings are diverse, in solving such problems, only to identify the main causes of roof leakage problems, in order to “prescribe the right medicine”, through the optimization of design, improve the level of construction technology, strengthen the post-management maintenance and a series of measures to fundamentally solve the problem of roof leakage.