Dense pack blown in fiberglass vs mineral wool
My wife and I are building a new house and the topic of dense pack blown in fiberglass verses mineral wool insulation needs to be decided soon. We had the blown in fiberglass at our last house by a contractor and it performed well. However mineral wool, R23, could be a choice that we could install ourselves since we do not have the equipment for the blown-in. Having not lived in a house with mineral wool, I was wondering how it compares to the fiberglass. What I liked about the blown-in fiberglass, besides the insulation, is the sound proofing. Also I think it helped air seal the house since it was so dense. Every part of the stud bay was packed solid, around electrical boxes, pipes, etc. Any comments on how the two compare in real life.
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