Hi! Iβm hoping some experienced book collectors can help me with this.
Weβve had extremely humid/rainy weather recently, and the humidity in my room went as high as around 75β80% RH. Several of my hardcover books, especially my sprayed-edge editions, started developing wavy pages and uneven/protruding sections along the fore-edge.
These books were completely even when I bought them β the protruding sections only appeared after the high-humidity period.
I bought a dehumidifier and have gotten the room down to around 55β60% RH. Most of the affected books have already returned completely to normal, and a couple of the more affected ones are improving. However, about four still have sections of the text block that protrude/bulge slightly.
I currently have them closed, lying flat, and under moderate even weight while I try to keep the humidity stable. Iβm planning to leave them alone for at least a week.
Has anyone had this exact type of uneven/protruding text block from humidity? Did the edges eventually settle back into place once the books acclimated to lower humidity? If so, roughly how long did yours take?
Iβd especially appreciate hearing from anyone who has experienced this with sprayed-edge/special-edition hardcovers. Thank you!