I finally realized why my miters kept opening up

Was at a kitchen job in Denver last week and the homeowner had a hygrometer sitting on the counter. Watched the humidity jump from 30% to 60% just from boiling pasta, and it clicked why my trim gaps keep changing overnight. Anyone else paying attention to job site humidity before gluing up miters?

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3 Comments

rowanharris5mo ago

Twenty four hours is the magic number I've settled on too.

8

henderson.oscar5mo ago

Wood moves more in the first four hours than it does the rest of the day in my experience.

3

johnson.faith5mo ago

oh man that humidity thing got me good last winter. i did a whole bathroom with poplar and glued everything up in my shop at like 35% humidity. brought it to the jobsite the next day and every single miter opened up by like 1/16th. the homeowner had a space heater going and it was bone dry in there. now i keep a little humidity gauge in my truck and i don't glue anything until i've let it sit in the room for at least 24 hours. saved my butt more than once.

6