12
Graphic 5
A- 25 mm (1 po.) minimum; 1- Combustible wall; 2- Non-combustible spacer; 3- Brick.
Graphic 6
A- 25 mm (1 po.) minimum; 1- Combustible wall; 2- Non-combustible spacer; 3- 0.61 mm (0.024") sheet metal; 4- Brick.
