While constructing the outer wall of the buildings there is always a risk of blocking the drainage holes with morter.
You may use Enkabreak to prevent that problem.
Enka-Break (thickness approximately 20 mm, height 300 mm) is placed vertically in the cavity, against the outer wall. The mat is fixed in position by bending the flat section on the top end horizontally and embedding it in the mortar or between the mortar and the bricks. Any mortar falling into the cavity will end up between Enka-Break and the inner wall.
As a result, Enka-Break prevents the blocking of the venting and drainage holes in the outer wall. It also prevents bridging between inner and outer wall.