Can Wet Insulation Ever Be Saved After Water Damage?I've seen different opinions on this, so I'm curious how other builders and contractors approach it.
Let's say insulation gets wet because of a roof leak, plumbing issue, or minor flooding. Some people recommend drying it completely if the damage is limited, while others believe it should always be replaced because trapped moisture can reduce its performance and eventually lead to mold growth.
Does the type of insulation make a difference? For example, fiberglass, mineral wool, cellulose, or spray foam?
I'm also interested in knowing whether you rely on moisture meter readings before making a decision, or if replacement is simply the safer option regardless of the readings.
In your experience:
Have you successfully dried and reused wet insulation?
At what point do you decide replacement is the only practical solution?
Have you ever opened a wall that looked dry from the outside but found moisture or mold hidden behind the insulation?
I'd love to hear what has worked for you on real projects and whether there are any industry best practices you follow.