I am adding insulation+drywall between open rafters. What's the best way (tool, blade/bit, technique, other advice) to get through these wall layers for ventilation? (I'll put mesh and grilles over the stucco holes.)
There's a 2x4, a 2x6, builder's paper, and stucco over lathe. I'm not sure if the 2x4 (front) is structural or was just a surface for mounting the appearance board that was nailed to it.
I could easily just tear into it, but I'm sure there's a "right" way that I don't know about. I have the basic power tools (e.g., recip saw).