u/itsquiznosubs

Looking specifically at Type 2D in the attached detail.

The note calls for (3) layers of 5/8" Type X gypsum board, but visually the exterior side looks like two standard gypsum layers, with the third/outer layer drawn differently and a dashed line through it where the exterior cement plaster is called out.

Would you interpret 2D as:

A) 3 layers of 5/8" Type X plus the exterior cement plaster assembly, or

B) 2 layers of 5/8" Type X plus the cement plaster assembly essentially taking the place of the third exterior layer?

Curious how others would logically read the detail as drawn.