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Fiberglass vs. Cellulose

I would like to upgrade my attic insulation. However, I understand that fiberglass insulation is now considered a suspected carcinogen. Cellulose insulation, I've been told, possibly is a fire hazard. Can you help with this dilemma? Also, are there any factors that affect the R-values of each material?

In General Insulation Asked by Dadden

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