Q: Does the RRP Rule apply if we do hammer the unpainted side of the lumber under roof?

The RRP Rule applies to work that disturbs painted surfaces.  If hammering painted components, even on the unpainted side, disturbs paint, creating dust or chips, the RRP Rule applies....

The RRP Rule applies to work that disturbs painted surfaces.  If hammering painted components, even on the unpainted side, disturbs paint, creating dust or chips, the RRP Rule applies.