Wall bends, thermal bridges, scratches and cracks in the wall and even wall collapse are mistakes made during the construction of the walls of the house. See what mistakes are most common in the construction of facades.
We present the most common mistakes made when building the walls of a house. Their consequences can be serious and even dramatic (destruction of a wall). Read and see how to avoid them.
Poor output of level and verticals
This threatens a curved wall, and in extreme cases, its destruction. To avoid incorrect level determination, the first layer is applied to the cement mortar. Its thickness depends on the difference in the levels of the upper surface of the foundation walls and ranges from 1 to 3 cm. The cement mortar must compensate for this difference. The construction of the wall begins from the corner, and then the following elements are installed.
Poor mortar in single-layer walls
The wrong choice of mortar in single-layer walls leads to thermal bridges and deterioration of the wall insulation parameters. To avoid this, walls made of smooth building materials should be connected with thin adhesive or foam joints.
Typically, hollow bricks made of ceramic and expanded clay have an uneven surface and, to compensate for discrepancies, they are connected using thermal insulation mortar for joints 10-12 mm thick.
Seams that are too thick will give you thermal bridges. And also – higher solution consumption, that is, higher costs. In turn, thin ones will not connect individual wall elements. It will have less load-bearing capacity. How to deal with this? A traditional connection should not be thinner than 8 mm and thicker than 15 mm (average 10 mm). Thin seams with a thickness of 0.5-3 mm (average 2 mm) should be made using a special box or spatula.
Vertical seams should have an average thickness of 10 mm; they should not be thinner than 5 mm and thicker than 15 mm. A vertical joint is considered filled when the mortar has been laid to its full height and occupies at least 0.4 of the joint width.
Lack of reinforcement in the window sill area in masonry only for vertical joints
This leads to cracks and scratches. Consequently, reinforcement made of rods 4-6 mm thick, hidden in the thickness of the weld, should be laid in two levels. Horizontal joints must be at least 4 mm greater than the thickness of the reinforcement. Additionally, fill this vertical joint with mortar.