[Chinalco.com] The leakage of unit type curtain wall curtain wall of unit type panel. The unit plate curtain wall is completed through the joint between the unit components, and its airtight and watertight properties are worse than those of the curtain wall treated with joints. The pressure difference is the main reason for forming joint leakage.
Open window leaks, leaks, improper adjustment of the installation of a sash and window frames, large error in the size of the assembly production, large gaps between the fan and frame after assembly, strict closure.
2 The material of the sealant strip is not closed, but the physical properties are poor. The elasticity is not good, and it is not resistant to aging. The specifications and models of the strip do not meet the requirements of the drawings, so the sealing effect cannot be achieved.
3 Sliding brace, handle and other hardware accessories are of poor quality, some of the accessories are installed with large deviations in position, and the length of the sealing tape is not enough. After the installation, the rubber strip shrinks, causing the sealing of the opening to malfunction.
4 The design does not take into account the structure on the fan to avoid water, rain directly into the waterproof tape, such as dripping drips, drain holes and other detailed design.
5 The individual details are not handled properly. For example, the exposed screw holes of the frame fan and the large splicing gap are not sealed, thus becoming a leaking channel.
The treatment of an unsuitable part of the mouth does not meet the requirements of the closed part or the capped part. Such as: the closing plate directly contact with the main body cement mortar, resulting in corrosion, can not reach the sealing effect, will inevitably cause leakage.
Curtain wall weatherproof sealant glue quality poor quality curtain wall weatherproof sealant glue quality, resulting in colloid cracking, porosity, resulting in water leakage. The main reason is that when the glue is not used in accordance with the plastic process, such as the glue injection site is not clean, the depth of the glue is too deep to form a three-sided adhesive, the glue is contaminated or damaged by dust before the adhesive is cured, and the filling material has different shades. Unsatisfactory, in-seam injections are not dense, uneven, and individual seals are missing. The quality of silicone weatherproof sealant is one of the reasons for the penetration of glue.
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