picture framing

noun3

1. •
   The act of setting a painting, photograph, etc. in a frame.
2. •
   A square or rectangular pattern of ridges in a roof membrane or covering over insulation or deck joints.

   • When ridges occur along both longitudinal and transverse joints, outlining the insulation boards, the pattern formed is known as "picture framing" — 1989
3. •
   (no longer used) The materials needed to construct a picture frame.