Wet pre-used kingspan boards, what to do now?
Hi all, so I am refitting a caravan and I bought myself a good deal of kingspan 40mm kooltherm pir boards for additional insulation on an auction (sight unseen). As it turns out the guy selling had stored it outside without proper cover. Probably 1/3 of the boards are at least twice the weight of the lighter ones, some of them are extremely heavy so they no doubt have a lot of water in them. Some of them feel okay but they have most likely all been in contact with water in one way or another.
I got a discount, but now I have a bunch of boards (2/3 of what I got) that contain a relatively smaller amount of moisture and a smaller amount (about 1/3) which are significantly heavier.
I have attempted drying some of them out by covering them with plastic and running an AC. It does not seem to be very effective.
From my understanding a smaller amount of moisture does not mean a lot when using them under flooring, but for a caravan I have my doubts.
- Any suggestions on what to do?
- How to best dry them out?
- How to know if they can be used?
Any advice would be hugely appriciated, they take up a lot of space and I need to start insulating the caravan asap.
Thank you!
/Frederik