There is usually a concave line under the external window sill, designed to prevent rainwater from flowing into the wall. Rainwater will fall outside this line, which is the drip line. It is applicable in construction projects where there is a requirement to block dripping water, generally installed at the bottom of the window lintel. If the surface of the concrete is very smooth, it should undergo "roughening treatment."
Drip Line is a measure to prevent rainwater from flowing down the wall into the balcony or onto the glass. It is typically installed at the junction between the bottom surface and the exterior wall, approximately 1-2 cm from the corner, creating a groove about 1 cm wide. This way, the water is blocked and will not flow inward. It is applicable in construction projects.
Areas that require blocking dripping water include protruding window sills, window heads, non-protruding window tops, awnings, balconies, parapet caps, and protruding waistlines of exterior walls. All these areas should have a drip line (or a drip groove).
Drip Line construction method:
1. During construction, certain areas, such as the small edge of the parapet wall, ventilation cover plates, or protruding waistlines of walls, usually have a sloped top edge with a gradient of not less than 1:6. The bottom edge typically adopts a drip line, commonly known as Eagle Beak. The construction of the drip line is completed simultaneously with the wall plastering, protruding from the wall at least 10 millimeters. It is required to be straight, consistent, and neatly finished around the edges.
2. Base layer construction: The drip line is generally made at the bottom of the window lintel. If the concrete surface is very smooth, it should first undergo roughening treatment. This can be done by either chiseling or using a throwing method. The throwing method involves mixing an appropriate amount of construction glue into a 1:1 watery cement mortar, allowing it to solidify on the concrete surface until it cannot be moved by hand.
3. Hanging vertically and leveling: Corner areas should be hung vertically, and the bottom edge should be on the same horizontal line. These areas should be marked or controlled with a line in advance.
Eagle Beak Drip Line generally has the specifications of 25*30*2000, with a material of PVC. This has led to the development of a thermal insulation and crack-resistant Eagle Beak drip line with mesh cloth: specifications are 100*100*2000. These two specifications are commonly used in residential building projects over many years, simultaneously reinforcing the corners of walls to prevent dents and other damages while blocking dripping water, making it an essential component of building decoration!!
