Guest guest Posted December 20, 2011 Report Share Posted December 20, 2011 Be careful about the building physics if you live in a climate with cold winters like ours (Norway). I have seen too many old attics that worked “good enough” for many years being destroyed by condensation in only 2-3 winters because of improper installation of blown in insulation that stopped all natural ventilation. (see attached picture as an typical example). Does not matter what type of insulation it is if it creates a big moisture / mould –problem instead. Med vennlig hilsen (best regards ) Ole Carlson Seniorrådgiver Mycoteam AS Fra: iequality [mailto:iequality ] På vegne av Jim H. White SSC Sendt: 20. desember 2011 17:23 Til: iequality Emne: Re: attic insulation 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 1 of 1 Photo(s) Quote Link to comment Share on other sites More sharing options...
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