Blown in Fiberglass or Cellulose in walls with no vapor barrier
Hi Everyone! I'm in need of some advice. I have finally decided to address the lack of insulation in the exterior walls of my early 1950s home. I have vinyl siding with a 1/4 inch layer of pink foam insulation under it and a layer of what appears to be heavy silver faced paper under that. I was planning to blow in cellulose insulation from Lowes using one of their machines. I did the attic several years ago and it was a breeze. I stopped by Lowes last night and the guy working there told me that without a vapor barrier, I should definitely go with the blown in Fiberglass product, not cellulose. He said that if the cellulose gets wet, mold can be a problem and this is not the case with Fiberglass. They will probably cost about the same, but fiberglass has slightly lower R value and is historically a pain (or should I say itch) to work with. Can anyone confirm or deny his claims of mold problems and/or provide any other relevant comments.