What are the control joints?

Control joints are a type of utilities used to reduce damage caused by natural shifts and movements of the building over time. These joints are used in structures of masonry, concrete and plasterboard to minimize aesthetic and structural damage due to cracking. Rather than allowing these objects to accidentally burst or break, control joints are used to guide excessive voltage to the planned places. This controlled cracking can facilitate the repair of damage by maintaining them concentrated in one area rather than on the entire surface. Because these structures of dry or treatment are experiencing significant shrinkage as the water within the concrete evaporates. Over time, they continue to download or expand due to changes in temperature, humidity and humidity levels. This constant swelling and contractions can cause ugly surface cracks and structural damage if they are left uncontrolled.

There are three B TECHNIKS ASIC used to add control joints to concrete stRutur. Thin strips made of plastic or high -density fiber slab can be used to divide the concrete cuts. These strips are placed every 4 feet (1.2 m) and are usually about 1/2 inch (12.7 mm). Installors can also create a shaped groove in regular intervals to function as a weak point in the structure. Excessive voltage in the plate will be attracted to this weak point and causes cracking along the line.

In order to form the control joints in the existing concrete, the installation device can cut the joints along the surface at regular intervals. These gaps can be left unoccupied or filled with masonry caul to improve the appearance of the joint. The control joints in the concrete should be placed around the entire perimeter of the floor plate, at all the intersection of two different concrete structures and at regular intervals to break large areas. Similar control jointsThey with brick or block walls, as well as other types of masonry structures.

Control joints are also used to control cracks in plasterboard sections, which over time naturally occur in moving or settling the building. They should be located at least every 30 feet (9.1 m) along the walls and are used on the ceilings to reduce plasterboard to no more than 50 feet (15.24 m). The plasterboard leaves are disturbed along with a small gap between them. In the gap there is a coral of metal control and attached to each leaf using nails or staples. The joint is then covered with plasterboard and spackle® and then normally ground and painted.