Is window sill coping a common practice? And an atlas? Ask experts for advice! ! ! !

First of all, according to Article 6.3.3 of the Code for Design of Masonry Structures: The purpose of this is to prevent or alleviate the cracks in the wall at the bottom of the building, then the following measures can be taken:

1. For example, the stiffness of the foundation ring beam can be increased.

2. Three welded steel mesh pieces or two φ 6 steel bars can be set in the mortar joint of the wall under the bottom window sill, and the wall between the windows on both sides should not be less than 600 mm ..

3, also can consider using reinforced concrete windowsill board, windowsill board embedded on both sides of the wall is not less than 600 mm. ..

Second, the parapet must be coping:

1, yes.

2. For example, some windowsills only use the bottom rib for the roof. Then its steel bar is 3 φ 8 steel bar, which extends into the mortar joint 60mm on both sides of the wall. Generally speaking, the coping elevation is like this, so you can do it according to the drawing window. It is best that its height can be about 100mm, so the effect will be better.

3. If the parapet roof is not capped, it will bring serious consequences. As we know, due to the temperature changes throughout the year, it is easy to cause cracks at the top. For example, there will be some water seepage, which will definitely damage your exterior wall and roof.

Window sill capping effect

1, as the prevention and control of common quality defects, to reduce or avoid wall cracks caused by stress concentration (splayed cracks at the junction of wall and window sill on both sides).

2. It can prevent external rain from entering and affect the strength of the lower wall.

3. When installing the window, the flat iron can be fixed on it to increase the stability of the window.

4. Increase the integrity and stability of the lower wall of the window sill.

References:

Baidu Encyclopedia-windowsill coping "windowsill coping function"