Curtain Wall Seepage Prevention Measures

Nov. 01, 2018

There are three basic conditions that cause water seepage and water leakage in the curtain wall: there are pores; there is water; there is a pressure difference of seepage cracks. Eliminating one or more of these basic conditions is the way to prevent water leakage: First, minimize pores The second is to block the rain so that it does not wet the gap as much as possible; the third is to reduce the wind pressure difference at the wetted gap.

1In the curtain wall aluminum profile, a small hole flowing to the outside is opened, and the water entering the curtain wall through the small gap is collected and discharged outside the curtain wall, and a small amount of water in the isostatic chamber between the glass, the aluminum profile and the aluminum buckle is discharged.

2 When designing, it is also conceivable to set up collecting pipes and drainage pipes on the glass curtain wall, collect the water that has penetrated into the cracks into the curtain wall, and smoothly discharge them to a designated drainage hole through the drainage pipe.

3 Use high-quality structural silicone sealant, weather-resistant silicone sealant, wall edge glue, and strengthen inspection to prevent expiration. Use high-quality float glass, glass must be edge treated, glass size error meets the standard requirements.

4 Pay attention to controlling the use environment of the sealant. It is strictly forbidden to carry out the construction of weather-resistant silicone sealant in the open air. The indoor temperature should not be higher than 27 °C, and the relative humidity should not be lower than 50%. Before the injection, the aluminum frame, glass or gap will be Dust, oil stains, loose objects and other dirt are removed. After injection, the material should be embedded and compacted, the surface should be flat, and the maintenance should be strengthened to prevent hand mold and water flushing.

5 According to the requirements of the specification, the waterproof curtain leakage performance inspection should be carried out in the process of construction of the glass curtain wall in order to repair and control the quality of the curtain wall.

6 The quality inspection of glass curtain wall is divided into two types: concealed acceptance and engineering acceptance. Concealed acceptance is carried out after the installation of aluminum profile frame. It mainly checks the firmness of the connection steel code, and checks the installation of the gap node with the main structure of the curtain wall, installation of expansion joints, etc. 2. The engineering acceptance is carried out after the completion of the glass curtain wall project.

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Construction Industry Tempered Glass