What is the function of window sill coping?

Window sill coping: the reinforced concrete covering on the top of the wall in the open air in the building, usually on the top of the window sill, the bottom of the window and the top of the parapet of the external wall. (Note: There is no specific specification for window sill coping, but it is used as a preventive measure or local standard for common quality defects).

Construction requirements of window sill capping

1. According to Article 6.5.3 of Code for Design of Masonry Structures (GB50003-20 1 1), the following measures can be taken to prevent or alleviate cracks in the bottom wall of houses:

A, increase the stiffness of foundation ring beam.

B, set three welded steel mesh or 2 φ 6 steel bars at the bottom of mortar joint of windowsill wall, and extend into the walls on both sides of the window not less than 600 mm ..

Extended data:

Window sill capping effect

1, as a quality common fault prevention, reduce or avoid wall cracks caused by prestressed concentration.

(There are 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.

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