What is the desired RH in a house to prevent the woodwork from cracking and splitting and what is best way to humidify the air?
I was recently hired as an owner’s rep for a 7,000 sq new construction house that is being heated with hydro air and radiant heating. For the past year they have been working on the molding, doors and wall panels around the house that is starting to show cracking and splitting in various areas. Although I have never tested the humidity levels in the house, the temperature is constantly set to 70 degrees. The painter is claiming that the cracking is due to low humidity levels in the house. If that is true, what is the minimum humidity level and how is the best way to increase the humidity? I should mention that they had installed humidifiers to the HVAC blowers. I am reluctant to turn these humidifiers on due to all the potential problems it can cause as mentioned previously in this blog. What is your take on this situation?
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