Paper rippling

[David Eckels]

A while back, I posted a thread about canvas ripples appearing after hanging in client's home.
Now, a similar phenomenon is occurring with paper prints, which were fine in my house, but when hung in a client's office for a week or so rippled terribly.
These were framed and matted with plexiglass glazing. Epson Premium Luster.
Any ideas?

[Panagiotis]

A while back, I posted a thread about canvas ripples appearing after hanging in client's home.
Now, a similar phenomenon is occurring with paper prints, which were fine in my house, but when hung in a client's office for a week or so rippled terribly.
These were framed and matted with plexiglass glazing. Epson Premium Luster.
Any ideas?

Hi level of humidity behind the wall the picture is hung.

[David Eckels]

Thanks. Turns out the wall had been painted the day before and was still drying. Ruined the print; back to the drawing board!