Aluminum windows and doors cause water seepage and water ways

Construction of leakages in aluminum doors and windows during use is the most common , but also more difficult to cure , and over the years has become the most common aluminum alloy doors and one of the maladies . With China's large-scale residential development , doors and windows of the monomer increasingly large area and wall , resulting in more and more obvious its water leakage problem , which is a great influence on the quality of construction , economic loss caused by can not be estimated . Which reminds us to strengthen research waterproof aluminum windows and doors , to form an effective waterproof measures to effectively improve product quality. The following analysis of several common reasons and aluminum doors and windows leaking solution .

One , mainly due to water seepage analysis of Aluminum Alloys windows and doors

1 , aluminum windows and doors in the design process itself causes structural defects . Windows main structural strength and rigidity press failed to meet local wind energy target, such as the cross-section of small , thin wall thickness , resulting in aluminum windows and doors of the force rod parts, hardware fittings , seals and adhesive material under normal wind loads under the effect of severe plastic deformation , crack or damaged , resulting in failure to produce doors and windows sealed body water leakage . The reason is the product fails to accurately regulate the strength calculation and design, and is not passed before the factory-installed wind pressure caused by the physical performance test windows leak water .

2 , aluminum doors waterproof structure design is unreasonable, waterproof seal profile section level is not enough , there is no more drainage channels. When the rain in indoor and outdoor air pressure under the action easily into the cavity and into the interior aluminum doors and windows , aluminum doors and windows and into the cavity of the rain , but not through the drainage system of aluminum windows and doors smoothly discharged outdoors and stay inside with doors and windows resulting in stagnant water and produce leakage.

3 , processing and installation process can not reach the quality requirements cause . Aluminum windows and doors installed in the field , the assembly size control is not good , so that the position of each lap seal have misplaced or overlap each other undersize ; box fan fight angle seam not sealed, not glue ; or because of the pressure foot and there is a gap , door frames for fixing the fastening screws no glue closure , sealed with a sealant when sealing parts of uncleaned surfaces .

4 , materials and accessories for material differences caused . Aluminum windows and doors with sealant strips and hardware accessories such as auxiliary of inferior quality. If sealant use outdated or counterfeit fake plastic, anti- displacement capability, easy to crack ; strips excellent anti-aging time is short, easy to pull off contraction ; hardware accessories poor quality , can not afford to break or repeatedly turned deformation caused by closed lax , resulting in leakages.

5 , aluminum window frames and exterior doors connecting areas filling the hole wall sealing properly, the gap between the wall and the hole too large or too small , causing doors and windows difficult to fix and easy to produce inaccurate filling cracks , which are often caused by the construction unit . Is also one of the causes of water seepage .

Second, for the above reasons waterproof approach taken

1, the design and preparation phase . First, according to the standard should be based on the engineering characteristics of rigorous calculation and design , aluminum wall thickness, cross-section , etc. to meet the local building wind load size and use requirements. Window frames on the wall in front of the door , select the most unfavorable wind pressure or volume in the overall detection window for three , truly physical performance test to determine whether the doors meet the design requirements and performance indicators .

2 , doors and windows structural waterproofing design .

( 1 ) Aluminum alloy doors and windows when the active use of structural design isobaric principle is to improve the performance of windows and doors sealing the most effective way .

( 2 ) Events Fan amount of overlap with the sash can not be too small. Activities fan and sash casement amount of overlap should not be less than 6mm.

( 3 ) high-rise buildings , cold regions and areas with high energy requirements , maximize the use of casement windows and doors structure, with little or no sliding doors and windows structure. Because sliding windows and doors with top and bottom rails activities fan there is a big gap between and adjacent to two sashes not in the same plane, two sash seal between the clamping force is not there , relying solely on lap tops for overlap , while the gap between the tops , sealing effect is very weak , so the sliding doors and sealing performance is poor. The sash casement windows and doors and window frames have between two to three sealing rubber strip seal , after the sash closed and locked tight pressure seal strip , but it is easy to form the intermediate cavity pressure chamber , etc. , so you can design and excellent sealing performance windows and doors .

( 4 ) Install glass doors aluminum and glass design in the interior pressure line should be the direction , to avoid glass pressure line and the slight gap between sash seepage .

( 5 ) types of windows and doors sliding down to design the interior side of the flap is high enough , or when there is a certain pressure outdoor rainwater , rainwater will flow over the flap interior .

( 6 ) should be set to the upper fan doors activities Phi water board , the lower displacement provide sufficient drainage holes , so that the water can enter the doors smoothly discharged outdoors.

( 7 ) Combination doors to minimize the exposed seams , cracks can not be used because of subtle sealant arising from leakage. Exposure can not be avoided due to structural reasons patchwork , then seams profiles two contact surfaces forming 90 °, easy to inject sealant .

3 , windows and doors cutting, assembly areas to improve the production of fine level to ensure proper amount of overlap , the need to pay special attention to fans and fan inlay glass and fan with the surrounding frame lap seal case .

4 , materials and accessories for the selection of materials . Excellent choice of weathering silicone sealant, glue and frame wall fan fight angle seam sealant ; choose the regular manufacturers of hardware accessories.

5 , aluminum doors four weeks with the hole wall joints to ensure the gap size to meet the requirements , enabling between sealed and filled with waterproof material packing seal.

Conclusion

In summary , aluminum doors seepage problem may be related to the design, installation , processing, and construction units, and so on , as long as we strengthen the study of water seepage problem , summarize, take effective measures, and to strengthen the monitoring of quality of water seepage , it must able to build high-quality , seepage little aluminum doors and windows products.