Humidity and Framed pictures?

[USAFpj]

I have a large collection of paper and cardboard posters, calendars, and framed pictures that I would like to put on the walls of my shop. In an area where the shop may see 80% RH (doors open for ventilation), how does this affect your posters and pictures on the walls?

 

[rlitman]

It can cause wrinkling. Are they window mounted or dry mounted? Dry mount is pretty resistant to wrinkling if it is done on a quality board.

 

[USAFpj]

Not sure what window vs. dry mounting is?

Perhaps I'll just wait until I have the separate office space that is climate controlled?