9. Joists and lintels

1. Calculate the brick size 
2. Calculate the course size 
3. Choose the right mortar 
4. Determine the mortar colour 
5. Tilt the bricks 
6. Damp proofing below ground level 
7. Provide a vertical dam 
8. Use closers 
9. Joists and lintels 
You can place joists and lintels in 2 different ways:
a. The joist and lintel remain visible: The brick is placed on top of the joist or lintel withthe mortar bed (special recess) facing up. When you position the support, you have to take into account the course measurement. The thickness of the joist or lintel should be removed from the brickwork right underneath it. The window casement therefore also has to be lowered. The upright sides of the brick can also be removed.
b. The joist and lintel are not visible: The Zero® bricks are placed upside down on the support (with the mortar bed or recess facing downwards). In order to ensure that the course measurement is not interrupted, the support has to be placed in a position that is high enough. The support’s thickness determines the height at which it has to be positioned above the support. The course above the reversed Zero® course has to be glued. 
10. Expansion joints 
11. Garden or freestanding walls 
12. Flat roofs