Guest guest Posted December 20, 2011 Report Share Posted December 20, 2011 Barb:I understand the blown cellulose is treated with boric acid to reduce its flammability.More info on Blown Cellulose should be available right here in Concord fromMark Garvey of Air Sealing America, LLC. BeargLife Energy AssociatesEnvironmental Health and Building Sciencewww.LifeEnergyAssoc.com20 Darton StreetConcord, MA 01742To: iequality Sent: Monday, December 19, 2011 10:18:08 PMSubject: attic insulation I have discovered that Roxul is all batt insulation and no blown in. I need blown in. Does anyone have any advice for me deciding between blown in cellulose or blown in fiberglass? I don't like the idea of fiberglass for lung irritation but someone has brought up the fact that cellulose easily can catch fire..so undecided now. Thanks Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 20, 2011 Report Share Posted December 20, 2011 Barb Cellulose insulation includes a fire retardant (often Borax and boracic acid) that makes it quite hard to burn. Over time it may lose some of its fire retardant capabilities near the upper surface, as the powder settles due to vibration, but it should not be a problem. A fire starting on top of the insulation would not work down to the house very quickly, especially if the attic were well air sealed. If the fire starts up into the attic from the house, you are already toast, so that should not be a consideration in what you choose. You do seem to get a lot of uneducated opinions; where do you go for advice? Jim H. White SSC attic insulation I have discovered that Roxul is all batt insulation and no blown in. I need blown in. Does anyone have any advice for me deciding between blown in cellulose or blown in fiberglass? I don't like the idea of fiberglass for lung irritation but someone has brought up the fact that cellulose easily can catch fire..so undecided now. Thanks Quote Link to comment Share on other sites More sharing options...
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